Șape uscate Fermacell Fermcell
fermacell
Flooring Systems
Planning and Installation
Version - February 2016
2
fermacell Flooring Elements –
High quality dry floor constructions
Living areas
Highly frequented areas
Rooms in residential and office buildings,
studios
Museum and exhibition spaces
Corridors in residential and office buildings
3
fermacell
the ultimate building board
fermacell Gypsum Fibreboard was
Manufactured in 4 plants across Eu-
Finally, its acoustic isolation properties
developed in 1971 and since then has
rope, fermacell Gypsum Fibreboard has
are further enhanced with an optional
become the obvious choice across
for many years been associated with
wood fibre layer allowing excellent
Europe for high-performance dry lining
high performance dry-lining where its
acoustic isolation between floors to be
projects.
fire resistant (Euroclass A2), acoustic
achieved.
isolation and impact resistance are
Combining the strength of solid block
highly valued by construction industry
W
ith a European Technical Approval
work with the flexibility of dry lining, the
professionals.
(ETA -03/0050) and associated CE mark
fermacell flooring systems are indepen-
acoustic, fire, moisture, impact and load
Subsequent product development has
dently certified at European level. In
a category of its own, truly the “ultimate
introduced the fermacell flooring sys-
addition, fermacell flooring carries a
building board”.
tem, made using the same base raw
BBA certificate (98/3358) giving an
material – recycled gypsum and recy-
additional UK 3rd party accreditation to
cled paper fibers.
its performance.
stations and recycled paper, fermacell
This dry flooring system is a practical
Available nationally from specialist
hanging performance place fermacell in
Made from recycled gypsum obtained as
a waste product from coal fired power
Gypsum Fibreboard is completely recycla
and cost effective alternative to conven-
distributors and builders merchants,
ble makin
g it an environmentally sound
tional wet screed to concrete floors, and
check our website www.fermacell.co.uk
choice and improving BREEAM ratings.
because of its excellent thermal con-
or call our office on 0121 311 3480 for
ductivity makes a great overlay to an
your nearest stockist.
under floor heating system.
Water
Paper fibres
Gypsum
4
Table of contents
1.
Introduction
1.1
Simple advantages of using
fermacell Flooring Elements
1.2
6–9
6
Quality with fermacell
Flooring Elements
7
3.
5.
Substrate and
to humidity30–33
12 – 24
3.1
Substrate
12
5.1
Introduction
3.2
Installation conditions
14
5.2
Waterproofing Systems
3.3
Levelling
15 – 19
5.3
Installing the waterproofing
3.4
fermacell Honeycomb Acoustic
Insulation System
2.
Areas of application
8 – 11
32
system
6.
Floor coverings
3.6 Underfloor heating
6.1
Installation Tolerance
systems
30-31
33
20 – 21
3.5 Additional insulation materials 21
2.1 Over
view of
areas of application
Flooring exposed
preparation
34 – 39
Guidelines
22 – 24
34
6.2 Carpeting, PVC, cork and other
8–9
coverings35
2.2
Area of application 1
10
2.3
Area of application 2
10
2.4
Area of application 3
11
4.
Installation
2.5
Area of application 4
11
4.1
Installation of fermacell
6.3
Flooring Elements
4.2
25 – 29
Ceramic tiles, natural stone
paving and terracotta tiles 36 – 38
6.4 Parquet, laminate
25 – 27
fermacell greenline
Floor Glue
28
4.3 Expansion/movement joints for
fermacell Gypsum Fibreboard
and Powerpanel H2O
Flooring Elements
29
The content corresponds to the latest fermacell performance and installation instructions. Ensure that only the latest up to date documentation is used.
Please note that the details and drawings are representative illustrated and should only be read in conjunction with the respective project drawings and
specifications. Subject to Technical update and revision at
any time.
39
5
7.
Details
7.1
Junction details
(example illustrations)
7.2
40 – 45
8.
40 – 43
46 – 47
46
8.3
Structural specifications of
fermacell Flooring Elements
47
8.4
Accessories
47
9.
Building physics
T-jointed44
Gypsum Fibreboard flooring
installed lengthways
45
48 – 59
9.1 Fire protection for
flooring constructions
48 – 49
9.2 Sound insulation with fermacell
flooring constructions
49– 57
9.3 Sound insulation for
Powerpanel H2O Element
flooring constructions
10.
Material requirements
10.1 Material usage tables
10.2 Installation times
Flooring Element
Doorway – Option 2:
46
8.2 fermacell Powerpanel H2O
Doorway – Option 1:
fermacell Flooring Elements
7.3
Specifications
8.1
fermacell Flooring Elements
58
9.4 Testing and approval documents59
60 – 62
60– 61
62
6
1.1 Simple advantages of using
femacell Flooring Elements
n Manageable element-sizes - Easy to carry
n One-person installation
n
Easy installation
n Swift working process and installation
n Can be walked on almost immediately
n Chair castor roll resistance
n Easy levelling
n Low additional weight to existing floor
n Simple and Effective complete system
n Increased fire protection
n Improvement of sound insulation
n Effective heat insulation
n Building biologically tested –
Ecological Benefits
n Suitable for domestic wet rooms
7
1.2
Quality Solutions with femacell
Flooring Elements
1.2.1
System description
1.2.2
Choosing the right floor
High quality floor constructions can be
construction
simply created with fermacell Flooring
When choosing the required fermacell
Elements. With regard to areas of use,
floor construction, there are a number
they are comparable to conventional,
of influential boundary conditions and
solid flooring systems, however, they
requirements:
have the advantage of being lightweight
n Type and properties of the existing
as well as having a dry and fast installa-
floo
r and levelling required.
tion (thus, no time-loss compared with
n Planned application area.
wet screed floors).
n Sound insulation requirements with
regard to airborne and impact sound
fermacell Flooring Elements consist of
two 10 mm or 12.5 mm thick fermacell
as well as and flanking sound
reduction.
boards glued together. The two boards
n Fire protection requirements.
are offset from one another, so that
n Thermal insulation requirements
there is a 50 mm shiplap edge.
with the possibility of additional
insulation.
The element dimensions are 1500 x
Durable and Sound insulating
n Moisture protection requirements
500 mm (with 0.75 m2 surface area/
(floorings and coverings must be
element).
matched to the level of humidity in
domestic bathrooms and wet rooms).
fermacell Flooring Elements are
available in a range of solutions as a
floating floor system.
n Required construction heights (pages
10-11).
n Aesthetic requirements, surface of
the finished floor, integration
of
Note:
Practical advantage:
suitable underfloor heating systems,
Further information
The Flooring Elements can be walked
etc.
on once the glue has cured. Thus al-
can be obtained from
the fermacell sales and
technical office - call
0121 311 3480 or go to
www.fermacell.co.uk
lowing floor finishes to be fitted almost
immediately.
8
2 Areas of application
2.1
Overview of areas of application
The permissible load performance for
2.1.1
Areas of application
fermacell Flooring Elements includes a
The flooring is a workable surface for
n Lecture halls and classrooms
safety factor of 2, which ensures a
a range of uses.
n Assembly rooms in public buildings
n Hospitals
complete system construction with all
n Domestic wet rooms
appropriate floor coverings. The point
2.1.2
Scope of application
loads can be used in conjunction with for
fermacell flooring offers solutions for
n Industrial flooring
all surface finishes, however, check the
a range of applications:
n
Useable floors in internal and
loading capability of the surface finish in
n New buildings
its own right as well.
n Old-building renovation
n Floors in public showers
external areas
n Dairies, breweries and
n Living areas
swimming pools
n Office and administrative buildings
Areas of Application to BS EN 1991-1-1:2002
Sub Category According to National
Annex to BS EN 1991-1-1:2002
No.
1
2 to 3
Areas for domestic and residential activities
Category A
Rooms in Residential Buildings and Houses (A1)*, Bedrooms and dormitories except
those in self Contained single Family units and in Hotels and Motels (A2), Bedrooms in
Hotels and Motels; Hospital Wards; Toilet Areas (A3)
A1/A2/A3
Office Areas
Category B
General Use (B1), At or Below ground floor level (B2)
B1/B2
Point
Load
kN
Uniformly
distributed
or Live Load
kN/m²
2,0
1.5/1.5/2.0
2,7
2.5/3.0
Areas where people may congregate
Category C
3 to 4
Areas with Tables. Public, Institutional and communal Dining room
s and Lounges, Cafes
and Restaurants (C11)*, and Reading Rooms with Book Storage (C12), and Classrooms
(C13)
C1- Areas with Tables - C11/C12/C13
3.0/4.0/ 2.0/2.5/3.0
3.0
3 to 4
Assembly Areas with Fixed Seating (C21)*, Places of Worship (C22)
C2- Areas With Fixed Seats - C21/C22
3.6/2.7
4.0/3.0
4
Corridors, hallways, aisles in Institutional type Buildings NOT subjected to Crowds or
Wheeled Vehicles, hostels, Guest Houses. Residential Clubs and Communal areas in
Blocks of Flats (C31)*, Stairs and Landings (C32)*
C3 - Areas without obstacles for moving
people - C31/C32
4.5/4.0
3,0
4
Corridors, Hallways, Aisles in ALL buildings not covered by C31 and C32, including Hotels, C33
Motels and Institutional Buildings subjected to Crowds (C33), Stairs and Landings (C35)
4.5/4.0
4.5/4.0
4
Corridors, Hallways, Aisles in ALL buildings not covered by C31 and C32, including Hotels, C34
Motels and Institutional Buildings subjected to Wheeled Vehicles, including trolleys (C34)
4,5
5
,0
4
Museum Floors and Galleries for Exhibition Purposes (C39)
C39
4,5
4,0
4
Assembly Areas without fixed seating. Concert Halls, Bars and Places of Worship (C51)*
C5 - Areas Susceptible to Large Crowds
- C51
3,6
5,0
Shopping Areas
Category D
Areas in General Retail Shops (D1) and Department Stores (D2)
D1/D2
3,6
4,0
4
* See notes in National Annex for further details.
9
Areas of Application to BS 6399-1:1996
Category According to
BS 6399-1:1996
No.
Point
Load
kN
Uniformly
distributed
or Live Load
kN/m²
Domestic and Residential Activity
Category A
1
All usages within self-Contained Units Single Family Dwelling Units **. Communal Areas (including
Kitchens) in Blocks of Flats with limited use.
A
1,4
1,5
1
Bedrooms and Dormitories except those in single family dwelling units, and in Hotels and Motels.
A
1,8
1,5
1
Bedrooms in Hotels and Motels; Hospital Wards; Toilet Areas.
A
1,8
2,0
Offices and Work Areas not covered elsewhere
Category B
4
Op
erating Theatres, X-ray rooms, Utility Rooms
B
4,5
2,0
1 to 2
Work Rooms (Light Industrial) without storage
B
1,8
2,5
2 to 3
Offices for General Use
B
2,7
2,5
3
Banking Halls
B
2,7
3,0
3 to 4
Kitchens, Laundries, Laboratories
B
4,5
3,0
4
Machinery Halls, circulation spaces therein
B
4,5
3,5
4
Factories, Workshops and Similar Buildings (general industrial)
B
4,5
5,0
Areas where people may congregate
Category C
2 to 3
Public, institutional and communal dining rooms and lounges, cafes and restaurants**
C1- Areas with Tables
2,7
2,0
4
Reading Rooms with no Book Storage
C1
4,5
2,5
3
Classrooms
C1
2,7
3,0
4
Assembly Areas with Fixed seating**
C2- Areas With Fixed Seats 3,6
4,0
3
Places of Worship
C2
4
Corridors, hallways, aisles in Institutional type Buildings
NOT subjected to Crowds or Wheeled Vehicles, hostels,
Guest Houses. Residential Clubs and Communal areas in
Blocks of Flats not covered by note 1 **
4
4
4
2,7
3,0
Corridors
, hallways, aisles etc.. (foot traffic only) C3 - Areas without obstac- 4,5
3,0
les for moving people
C3
4,0
3,0
Corridors, hallways, aisles, stairs landings etc.. in all other Corridors, hallways, aisles etc.. (foot traffic only) C3
type Buildings including hotels and motel and Institutional Corridors, hallways, aisles etc., subject to
C3
buildings
wheeled vehicles, trolleys etc..
4,5
4,0
4,5
5,0
4
Stairs and Landings foot traffic only)
C3
4,0
4,0
4
Museum Floors and art galleries for Exhibition Purposes
C3
4,5
4,0
4
Assembly areas without fixed seating, concert halls, bars, and places of worship**
C5 - Areas Susceptible to
Overcrowding
3,6
5,0
Shopping Areas
C5 - Areas Susceptible to Overcrowding
4
Shop floors for the sales and display of merchandise
D
Stairs and Landings foot traffic only)
3,6
4,0
** See notes in BS 6399-1 for further details.
35
30
25
25
Areas of application and permissible point load
20
2.1.3
fermacell
Flooring Element
2 E
11
2 E 22
2 E 31
(2 E 33)
Powerpanel H2O
Flooring Element
Construction
2 x 10 mm
Gypsum
Fibreboard
2 x 12,5 mm
Gypsum
Fibreboard
2 x 12,5 mm
Powerpanel H2O
board
Area of application ***
1 + 2**
1 + 2 + 3**
2 x 10 mm
(2 x 12,5 mm)
Gypsum
Fibreboard
+ 10 mm
Wood fibre
1+2+3
Permissible point load
2,0 kN**
3,0 kN**
3,0 kN
3,0 kN
1+2+3
Increase of permissible point load with the addition 3rd layer with 10 mm fermacell Gypsum Fibreboard*
Area of application ***
1+2+3
1+2+3+4
1+2+3+4
Permissible point load
3,0 kN
4,0 kN
4,0 kN
2.1.4
Permissible point load
n Where the point load spacing
The allowable point load information
≥ 500 mm, the allowable point loads
refers to:
can be added up over the whole
n A load area of at least 200 mm.
surface area. In this case, the speci-
(Stamp Ø = 5 mm).
n Particularly heavy objects, e.g.
fied live loads may be exceeded.
n The sum of the point loads must not
* * Installation of a 3rd layer fermacell Gypsum
Fibreboard (
page 27).
** If the non-laminated fermacell Flooring
Elements are laid directly on the load-bearing
subsurface, the permissible point load for 2 E
11 increases to 3.0 KN and to 4.0 kN for 2 E 22.
Accordingly, the area of application extends to
area 3 for 2 E 11 and area 4 for 2 E 22. The
suitability for use of fermacell Flooring
Elements was proven through tests at the
Materials Testing Institute (MPA) Stuttgart.
*** Refer to relevant performance table to either
BS or EN performance requirements
N.B. Factory of Safety for Loading = 2
n Maximum deformation for the specified point loads at the floor edge
is ≤ 3 mm.
n The point loads may only be applied
at a distance of ≥ 250 mm from the
flooring corner. If the distance is
pianos, aquariums, bath tubs, must
exceed the maximum permissible
less, then a load dispersion pad of
be taken into account separately in
floor load capacity.
100 mm diameter should be used.
the planning and design.
25
35
30
Area of application 1
20
2
.2
25
10
n For Example: Rooms in Residential
Buildings and Houses, Bedrooms
(except those in single family dwelling units) in Hotels, Motels and
fermacell
Flooring Element
2 E 11
2 E 22
2 E 31
(2 E 33)
Construction
2 x 10 mm
Gypsum
Fibreboard
2 x 12,5 mm
Gypsum
Fibreboard
2 x 10 mm
2 x 12,5 mm
(2 x 12,5 mm) Powerpanel
Gypsum Fibre- H2O board
board + 10 mm
Wood fibre
Hospital Wards.
Refer to Tables in Section 2.1.
Powerpanel
H2O Flooring
Element
Additional levelling
fermacell Bonded Levelling Compound
30 to 2 000 mm 30 to 2 000 mm 30 to 2 000 mm 30 to 2 000 mm
and/or
fermacell Honeycomb system
30 or 60 mm
30 or 60 mm
30 or 60 mm
30 or 60 mm
10 to 100 mm
10 to 100 mm
10 to 100 mm
10 to 100 mm
max. 30 mm
–
max. 30 mm
max. 90 mm
max. 60 mm
max. 90 mm
max. 120 mm
max. 90 mm
max. 120 mm
max. 100 mm
max. 120 mm
max. 90 mm
max. 120 mm
max. 140 mm
max. 160 mm
max. 150 mm
max. 160 mm
and/or
fermacell Levelling Compound 1)
Additional height adjustmen
t/additional insulation
Polystyrene hard foam EPS DEO 100 kPa2) max. 30 mm
alternative
Polystyrene hard foam EPS DEO 150 kPa2)
max. 70 mm
alternative
Polystyrene hard foam EPS DEO 200 kPa2) max. 100 mm
alternative
Extruded hard foam XPS DEO 300 kPa
max. in 2 layers
alternative
Extruded hard foam XPS DEO 500 kPa
max. in 2 layers
This is a simple dry fill application with no further binding agents, thus a compaction of up to 5 % should be allowed for.
Note: In order to improve sound insulation, in particular for wooden joist floors, mineral wool or wood fibre
boards are more suitable than hard foam insulation boards.
fermacell Flooring Elements 2 E 22 (25 mm) are particularly well suited as an overlay for hot water underfloor
heating (page 22).
2) Compressive strength (kPa) at 10 % compression to DIN EN 13163 - check relevant BS EN standard for comparison
if required.
25
35
30
Area of application 2
20
2.3
25
1)
n For Example: General Use. Public,
Institutional and comm
unal dining
rooms, lounges, cafes and
restaurants.
fermacell
Flooring Element
2 E 11
2 E 22
2 E 31
(2 E 33)
Construction
2 x 10 mm
Gypsum
Fibreboard
2 x 12,5 mm
Gypsum
Fibreboard
2 x 10 mm
2 x 12,5 mm
(2 x 12,5 mm) Powerpanel
Gypsum Fibre- H2O board
board + 10 mm
Wood fibre
Refer to Tables in Section 2.1.
Powerpanel
H2O Flooring
Element
Additional levelling
fermacell Bonded Levelling Compound
30 to 2 000 mm 30 to 2 000 mm 30 to 2 000 mm 30 to 2 000 mm
and/or
fermacell Honeycomb system
30 or 60 mm
30 or 60 mm
30 or 60 mm
30 or 60 mm
10 to 60 mm
10 to 60 mm
10 to 60 mm
10 to 60 mm
max. 30 mm
–
max. 30 mm
max. 90 mm
max. 60 mm
max. 90 mm
max. 120 mm
max. 90 mm
max. 120 mm
max. 100 mm
max. 120 mm
max. 90 mm
max. 120 mm
max. 130 mm
max. 160 mm
max. 130 mm
max. 160 mm
and/or
fermacell Levelling Compound 1)
Additional height adjustment/additional insulation
Polystyrene hard foam EPS DEO 100 kPa2) max. 30 mm
alternative
Polystyrene hard foam EPS DEO
150 kPa2)
max. 70 mm
alternative
Polystyrene hard foam EPS DEO 200 kPa2) max. 100 mm
alternative
Extruded hard foam XPS DEO 300 kPa
max. in 2 layers
alternative
Extruded hard foam XPS DEO 500 kPa
max. in 2 layers
* Unsuitable
1) This is a simple dry fill application with no further binding agents, thus a compaction of up to 5 % should be allowed for.
Note: fermacell Flooring Elements 2 E 22 (25 mm) are particularly well suited as an overlay for hot water
underfloor heating (page 22).
2) Compressive strength (kPa) at 10 % compression to DIN EN 13163 - check relevant BS EN standard for comparison
if required.
retirement homes without heavy
machinery, Classrooms; Treatment
rooms in hospitals.
cafes, restaurants, dining rooms,
lecture halls, reception rooms,
crèches, day nurseries, staff rooms.
30
fermacell
Flooring Element
2 E 11
2 E 22
2 E 31
(2 E 33)
Construction
2 x 10 mm
Gypsum
Fibreboard
2 x 12,5 mm
Gypsum
Fibreboard
2 x 10 mm
2 x 12,5 mm
(2 x 12,5 mm) Powerpanel
Gypsum Fibre- H2O board
board + 10 mm
Wood fibre
10 mm fermacell Gypsum Fibreboard**
+ 3 rd layer
Refer to Tables in Section 2.1.
n Areas with tables; e.g. classrooms,
25
35
n For Example: kitchens in hotels and
20
2.4 Area of application 3
25
11
Powerpanel
H2O Flooring
Element
Additional levelling
fermacell Bonded Levelling Compound
30 to 2 000 mm 30 to 2 000 mm 30 to 2 000 mm 30 to 2 000 mm
and/or
fermacell Honeycomb system
30 or 60 mm
30 or 60 mm
30 or 60 mm
30 or 60 mm
10 to 60 mm
10 to 60 mm
10 to 60 mm
10 to 60 mm
–
–
–
–
max. 70 mm
max. 70 mm
max. 40 mm
max. 70 mm
max. 100 mm
max. 70 mm
max. 100 mm
max. 100 mm
max. 100 mm
max. 70 mm
max. 100 mm
max. 140 mm
max. 140 mm
max. 110 mm
max. 140 mm
and/or
Refer to Tables in Section 2.1.
fermacell Levelling Compound 1)
Additional height adjustment/additional insulation
Polystyrene hard foam EPS DEO 100 kPa2)
alternative
Polystyrene hard foam EPS DEO 150 kPa2)
alternative
Polystyren
e hard foam EPS DEO 200 kPa2) max. 100 mm
alternative
Extruded hard foam XPS DEO 300 kPa
max. in 2 layers
alternative
Extruded hard foam XPS DEO 500 kPa
max. in 2 layers
** Unsuitable
** Point load increased by installation of a 3rd layer fermacell Gypsum Fibreboard 10 mm (page 27).
1) This is a simple dry fill application with no further binding agents, thus a compaction of up to 5 % should
be allowed for.
2) Compressive strength (kPa) at 10 % compression to DIN EN 13163 - check relevant BS EN standard for
comparison if required.
Area of application 4
30
35
n For Example: Corridors in hospitals
25
2.5
fermacell
Flooring Element
2 E 22
2 E 31
(2 E 33)
Construction
2 x 12,5 mm
Gypsum
Fibreboard
cinemas, conference rooms,
10 mm fermacell Gypsum Fibreboard**
+ 3 rd layer
2 x 10 mm
(2 x 12,5 mm)
Gypsum Fibreboard + 10 mm
Wood fibre
+ 3 rd layer
lecture rooms, waiting rooms
Additional levelling
(in deviation
from BS EN 1991-1-1:2002) and all
examples from B1 and B2, but
with
heavy machinery
n Areas in churches, theatres or
n Areas in specialist shops and
warehouses.
fermacell Bonded Levelling Compound
30 to 2 000 mm 30 to 2 000 mm
and/or
fermacell Honeycomb system
30 or 60 mm
30 or 60 mm
10 to 60 mm
10 to 60 mm
–
–
max. 70 mm
max. 40 mm
max. 100 mm
max. 70 mm
max. 100 mm
max. 70 mm
max. 140 mm
max. 110 mm
and/or
fermacell Levelling Compound 1)
Refer to Tables in Section 2.1 for specific
Additional height adjustment/additional insulation
loading allowances
Polystyrene hard foam EPS DEO 100 kPa2)
alternative
Polystyrene hard foam EPS DEO 150 kPa2)
alternative
Polystyrene hard foam EPS DEO 200 kPa2)
alternative
Extruded hard foam XPS DEO 300 kPa max. in 2 layers
alternative
Extruded hard foam XPS DEO 500 kPa max. in 2 layers
** Unsuitable
** Point load increased by installation of a 3rd layer fermacell Gypsum Fibreboard 10 mm (page 27).
1) This is a simple dry fill application with no further binding agents, thus a compa
ction of up to 5 % should
be allowed for.
2) Compressive strength (kPa) at 10 % compression to DIN EN 13163 - check relevant BS EN standard for
comparison if required..
12
3 Substrate and preparation
3.1
Substrate
fermacell Flooring Elements can be installed on a number of
substrates. These must be fully supportive as the main structural
element. fermacell flooring is not a spanable structural element.
3.1.1
Solid floor
3.1.2
Solid floors over ground
3.1.3
Timber joist floor with
If the floor component contains residual
Floor components bordering soil must
structral floor deck
moisture (core moisture), then a protec-
have additional permanent protection
Timber joists are overlaid with a spana-
tive DPC should be laid first. Typically
incorportated against increased humidi-
ble floor deck such as 22 mm Chipboard
this will be a 0.2 mm polyethylene sheet.
ty for the floor and wall area. Refer to
or a similar suitable material. In renova-
All joints should be overla
pped by a
the relevant British Standard for mois-
tion projects the condition of the exist-
minimum of 200 mm and taped and
ture protection in these areas.
ing floor must be checked prior to the
sealed (refer to DPC manufacturers
installation of any fermacell Flooring
guidelines).
Elements. Any necessary repairs should
be carried out. The floor should not be
At the perimiter of the room the DPC
springy or deflect significantly. Where
sheet should be turned up to the height
required, and to ensure a full surface
of the finished floor level.
support, refer to section 3.3 on levelling
(refer to manufacturers
recommendations).
13
TIP:
A full area support and a stable, dry
substrate are required for the installation of fermacell Flooring Elements.
3.1.4
Timber joist floor with
3.1.5
Trapezoidal steel sheet floors
3.1.6
Steel beam floors
a recessed floor deck
To give a full contact support area for
The steel beams and associated struc-
Where ceiling heights are re
strictive,
fermacell Flooring Elements lay a
tural layer must be designed by a quali-
then a recessed floor deck to match into
load-bearing timber sheeting layer
fied engineer. The structural deck of the
the top of the joists can be used. This
directly on to the trapezoidal steel
floor may be either timber-based
allows for the installation of the ferma-
sheet.
boards, plywood sheets, structural
cements boards, or similar. Refer to
cell Flooring Elements with a reduced
overall build height.
Where specified for fire protection
requirements, an additional layer of
Lower level recessed floor deck
fermacell Gypsum Fibreboard or
sections can be filled with fermacell
Powerpanel H2O boards should be laid
Bonded Levelling Compound, see
directly over the trapezoidal steel sheet
details in section 7.1.3. Please refer to
floor.
the allowable construction infill depths
(see pages 10 and 11). Ensure that the
Alternatively, smaller void depths up to
load-bearing capacity of an
y recessed
50 mm can also be created using
decking detail is structurally checked
fermacell Levelling Compound; mini-
by a qualified engineer.
mum void depth 10 mm.
Void depths of minimum 40 mm can be
filled with fermacell Bonded Levelling
Compound.
Structural Engineers calculations.
14
3.2
Installation conditions
3.2.1
Construction site storage
III. Levelling compounds and flooring
3.3
Levelling
3.3.1
Preparation of bare floor:
fermacell Flooring Elements are deliv-
elements must only be installed once
Level/Flatness of the existing floor
ered on pallets and are protected
any plastering works are complete
A level subsurface is required for the
and dry.
installation of fermacell Flooring
against moisture and contamination by
special packaging.
IV. The use of gas burner heating can
Elements. The fermacell levelling
lead to damage due to the build-up of
options are:
fermacell Flooring Elements must be
moisture and thermal shock, and
n from 0 to 20 mm wit
h
stored flat on a structrally sound, level
should be clearly avoided. This
base and protected against moisture
applies in particular for cold interiors
and rain.
with poor ventilation.
V. The climatic conditions in the instal-
Storing of gypsum fibre boards and
lation area must not change signifi-
Powerpanel H2O Flooring Elements
cantly 24 hours before, during and 24
upright on their edges can lead to
hours after the installation.
fermacell Self-Levelling Compound,
n from 10 to 60 (100) mm with
fermacell Dry Levelling Compound,
n from 30 to 2 000 mm with fermacell
Bonded Levelling Compound.
3.3.2
fermacell Self-Levelling
Compound
deformation in the boards.
Concrete or Solid floors
The fermacell Self-Levelling Compound
Any irregularities should be repaired or
is the ideal solution for levelling off
removed, the entire surface cleaned in
unevenness of up to 20 mm height in
not be installed at a mean relative
preparation. A polyethylene sheet of
flooring.
humidit
y above 70 %.
0.2mm thickness, or similar, should be
3.2.2
General installation conditions
I.
fermacell Flooring Elements must
II. The jointing of fermacell Flooring
spread over the entire surface., ensur-
Areas of use:
Elements should take place at a
ing a minimum 200mm overlap between
fermacell Self-Levelling Compound is
relative humidity ≤ 70 % and a room
sheets. These joints should be taped to
suitable as a surface finish:
temperature ≥ +5 °C. In this respect,
give a suitable seal.
n for load-bearing, dry and dust-free
substrates made of fermacell
the glue temperature should be
≥ +15 °C. The flooring elements must
Timber joist floors
Flooring Elements, concrete, anhy-
have been acclimatised to the inter-
When using on timber joist floors,
drite or chipboard for internal areas
nal climate. After jointing, this indoor
trickling out of the levelling compound
environment must not change signi–
through cracks and knotholes can be
ficantly for at l
east 24 hours.
prevented by using the fermacell Trickle
n on T & G boarding exclusively for the
installation of flooring elements
n as a substrate under floor coverings,
Protection Sheet. See page 16 for fur-
e.g. textile, PCV, etc., see section 6
ther details. Ensure any loose floor-
floor coverings.
boards are securely fixed down first.
n May be placed above or below
fermacell Flooring Elements.
15
Preparation of the substrate
Mixing
Defects and damage to the substrate,
fermacell Self-Levelling Compound is
e.g. holes, cracks or protruding joints
supplied in 25 kg bags. 1 bag = approx.
must be levelled off with fermacell joint
15 m² at 1 mm thickness. Approx. 6.5 l
filler. The subsurface must be
cold, clear water is required per bag.
load-bearing, clean, permanently dry
The fermacell self-levelling compound
and free from any separating agents,
is added to the water whilst mixing
dust, oils and substances that could
vigorously. Working Time = Maximum
affect
adhesion. Loose substrates must
30 minutes.
Preparation: Prime floor
be fixed down or repaired. Loose coatings must be removed.
Installation
In a single application apply the pre-
The self-levelling compound must not
mixed levelling compound to the desired
be applied to plastic or waterproofing
layer thickness and level out (as re-
sheeting.
quired, with a trowel or spiked roller).
For layer thicknesses up to 3 mm, the
In order to ensure the necessary adhe-
surface can be walked on after 3 hours
sion and to facilitate installation, the
and it will be ready for covering after
substrate should be treated with a
24 hours (based on an interanl tempe-
primer/sealer, e.g. with fermacell Deep
rature of 20 °C and max. 65 % relative
Primer. Where the fermacell Flooring
humidity). For multiple layers of
Elements have been sanded, the prim-
fermacell self-levelling, the lower layer
er/sealer must be reapplied after the
must be completely dry and a subse-
first coating ha
s dried.
Mix in clean container:
6.5 l water/ 25 kg bag
quent layer of fermacell Deep Primer
must be applied between layers as an
When applying to fermacell Flooring
intermediate primer.
Elements, ensure that any protruding
perimeter strips are cut off level after
fitting the fermacell Flooring Elements.
Note: Protect against draught!
Mix with a suitable mixer at a low
speed, until a homogenous, lumpfree levelling compound is created
Pour out self-levelling compound
and level off
16
Fitting the perimeter strips
Preparing the area to be levelled
The trickle protection sheet must be
Maximum Depth for fermacell Dry
Levelling Compound
turned up the corners and wall perime-
Levelling Compound:
The fermacell Levelling Compound is a
ters to sit above the final floor finish
1. Domestic Use – 100 mm.
special dried, mineral aerated concrete
level. When using a PE sheet as trickle
2. Other Areas – 60 mm
granulate, whose particular structur-
protection, ensure that it i
s suitable for
N.B. Allow for compaction of up to 5 %
al-physical properties make it very
the structural-physical conditions of
when covered.
versatile.
use.
3.3.3
fermacell
Load-distributing board
The material locks itself together due to
Installation
In the following applications a load-dis-
the angular grain shape, thus providing
The finished floor level of the dry floor-
tributing board must be laid on top of
excellent stability.
ing must be set out and marked on the
the fermacell Levelling Compound
walls with the aid of a level, chalk line
before laying any other flooring. e.g., dry
As it is a mineral compound, with no
and/or a laser. Then fit the perimeter
butted 10 mm thick fermacell Gypsum
additional binders, a possible compac-
strips.
Fibreboard.
n Use of fermacell Flooring Elements
tion of approx. 5 % may occur and thus
must be taken into account.
Easy to lay
Approx. 200 mm wide haunches/dams
2 E 32 and 2 E 35 over 60 mm dry
levelling compound.
A
reas of use
of fermacell Levelling Compound are
n For use with a hot water underfloor
fermacell Levelling Compound is used
laid to each side of the area to be lev-
heating system (see section 3.6.6.
for levelling uneven floors in old and
elled. The edge rails are then levelled
new buildings.
out, and then the fermacell Levelling
Notes
Compound is poured out and then
n As an alternative to the fermacell
It is especially suitable for lightweight
scraped flush to the required level.
floor constructions (timber joist floor),
Floor Levelling Set use a suitable
timber straight edge as guide rails.
as it reduces additional structural
The dry levelling compound does not
loading to the building.
require any further compaction.
n The levelling rail should have notches
at the ends.
n A spirit level should be used for
Preparation
Apply levelling compound
When using on timber joist floors,
The fermacell Levelling Compound is
trickling out of the levelling compound
applie
d between the haunches/dams
through cracks and knotholes can be
and scraped to the correct level with the
prevented by using the fermacell Trick-
fermacell floor leveller. Laying of
min. 10 mm layer of dry levelling
le Protection Sheet.
fermacell Flooring Elements or addi-
compound.
tional layers can then begin.
levelling.
n The timber straight edge must not be
left in the levelling compound.
n Service pipes must be covered with a
17
Apply fermacell Levelling Compound
Place fermacell Flooring Element on to fermacell Levelling Compound
n Minimum thickness of dry levelling
compound to be used is 10 mm.
n To avoid condensation issues, ensure
the area is correctly prepared and
sealed.
n When fitting installation pipes, ensure corrosion, heat, sound and fire
protection is not affected.
TIP:
The fermacell Levelling Compound must not
be walked-on. The installation sequence
should start to allow fitting towards the door.
When placing the flooring elements, intermediate stepping
stone step boards should
be used, e.g. fermacell board offcuts
> 500 x 500 mm.
30 – 2 000 mm
Depth of packing/levelling height [mm]
2000
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
..
..
..
fermacell
Bonded Levelling
Compound
10 – 100 mm
fermacell
Levelling
Compound
0 – 20 mm
fermacell
Self-Levelling Compound
18
1
2
Thoroughly mix the entire contents of
the bag in a suitable mixer …
4
3
… with approx. 8 –10 litres of water
5
The bonded levelling is then laid out as
required
6
The first levelling edge is laid out and
aligned
The second levelling edge is then laid
out and aligned
Wait until the levelling edges are dry
(approx. 20 minutes)
3.3.4
Areas of use
load-bearing, clean, permanently dry
n Under fermacell Flooring Elements
and free from any separating agents
fermacell Bonded
Levelling Compound
fermacell Bonded Levelling Compound
is a recycled foam insulation with a
and Power
panel H2O Flooring
and substances that could affect adhe-
Element
sion. Loose substrates must be fixed
grain size of 2 to 8 mm mixed with a
n For wet rooms.
down and any loose coatings must be
cement-based binding agent.
n On supported solid, wooden joist,
removed.
n The foam insulation has a low weight
and good thermal insulation.
n The cement-based binding agent
gives high stability and prevents the
levelling compound from settling. It
creates a stable surface, which can
be walked-on after approx. 6 hours.
trapezoidal steel sheet floors, vaulted
ceilings, etc.
n In living areas, public buildings,
schools, etc.
n Areas with greater load
requirements
In order to ensure the necessary adhesion, the subsurface must be treated
with a primer, e.g. fermacell Primer. A
separating layer, e.g. trickle protection
or DPM, should be avoided.
n May be used under other flooring
systems
As required, then, fit perimeter strips.
These must completely decouple the
The bonded levelling
compound is an
ideal addition to the fermacell flooring
Area Preparation
flooring construction (incl. floor cover-
range as it gives a solution for heights of
Firstly determine the finished level of
ing) from the surrounding walls.
up to 2 m.
the dry flooring and mark this on the
surrounding walls with a suitable
levelling tool. The subsurface must be
19
7
8
Fill in between the levelled edges and
level out.
Mixing
Walking routes on the compound must
The entire contents of the bag must be
be covered and protected. It should be
sure corrosion, heat, sound and fire
mixed with approx. 8-10 litres of water,
noted that fermacell Bonded Levelling
protection is not affected.
until it is thoroughly mixed and lump
Compound is not a final walking surface.
free.
Tools and mixers must be cleaned
Compound is not a final walking
thoroughly with water after use.
surface. Floor coverings must not be
Installation
n When fitting installation pipes, en-
n The fermacell Bonde
d Levelling
directly applied.
An approx. 200 mm wide levelling edge
The finished surface must be protected
is created to each side of the area to be
from draughts during the setting
using fermacell Self-Levelling
levelled. These are built to the required
process!
Compound.
n Fine adjustment can be achieved
level and allowed to dry. Once the edge
sections are dry, then the middle can be
Notes
completed in the same way. This can be
n Minimum depth of material =
levelled off using a fermacell Levelling
Set or a suitable set of straight edges.
30 mm.
n Suitable for depths from 30 mm to
Any unevenness can be trowelled
2000 mm in layers up to 500 mm
smooth. fermacell Bonded Levelling
at a time.
Compound can be walked-on after
n Beams, steel sections, etc. can be
approx. 6 hours and is ready for over–
used on the top level as an alterna-
laying after 24 hours (at 20 °C and at
tive (see Details).
max. 65 % relative humidity).
n General installation precautions
sh
ould be taken to avoid
condensation.
Note:
For typical
constructions
please see
page 43
20
fermacell Honeycomb Acoustic
Insulation System
3.4
Lay fermacell Honeycomb System
Apply fermacell Honeycomb Infill
fermacell Honeycomb Acoustic Insulation System
Areas of use
Installation
Use an electric hammer drill or similar
The fermacell Honeycomb System is
fermacell Honeycomb Flooring is laid
tool with vibration function to compact the
suitable for both new build and renova-
over full floor. Additional paper strips
60 mm high honeycomb infill. The 30 mm
tion or refurbishment projects.
are used to overlap the sheets on the
high honeycomb infill should not be
n The honeycomb system is used in
long edge. Paper strips need only be
compacted.
conjunction with the 30 mm
applied on the front sides as trickle
fermacell acoustic flooring.
protection when there is a risk that the
fermacell Flooring Elements
honeycomb infill could trickle away
For acoustic performance, the
following
through knotholes or cracks.
fermacell Flooring Elements can be laid
n Overall this 60 or 90 mm high floor
construction gives an additional
on top of the fermacell Honeycomb Infill:
surface weight of approx. 70 or
115 kg/m².
n Impact sound improvement of up to
up to 34 dB can be achieved, depend-
Apply honeycomb infill
n 2 E 31 (2 x 10 mm Gypsum Fibreboards
Fill the honeycomb with the fermacell
+ 10 mm wood fibre).
Honeycomb Infill.
n 2 E 33 (2 x 12.5 mm Gypsum Fibreboards
ing on the construction.
+ 10 mm wood fibre).
Start filling away from the door and
tread carefully on the filled honeycomb.
Level out the fermacell Honeycomb
Infill into the honeycomb with a straightedge or brush, to leave a level
substrate.
21
Level out fermacell Honeycomb Infill
Lay fermacell Flooring Elements
3.5
Additional insulation materials
Notes
Further insulation and other materials
The use of hard foam boards, e.g.
n The increased mass of the system
can be used to build
up and increase the
polystyrene, on wooden joist floors is
height of fermacell flooring systems.
not recommended for sound insulation
onto the structural floor (approx.
reasons. Pressure-resistant wood fibre
45 or 90 kg/m².) significantly reduces
An even, load-bearing substrate is
or high density mineral wool insulation
necessary for laying these insulation
boards are better suited for these types
boards.
of floors.
may affect the sound and fire protec-
It should be noted that the traffic and
Where using mineral wool acoustic
tion properties).
point load capability of the fermacell
insulation boards with fermacell Level-
Flooring Element may change if alterna-
ling Compound, a 10 mm thick
tive insulation materials are used.
fermacell Gypsum Fibreboard is
the transmission of sound.
n Installation pipes can be cut in to the
system, up to 100 mm wide in the
fermacell Honeycomb Flooring (this
n The fermacell Honeycomb Flooring
can be over filled to max. of 3 mm,
wi
th fermacell Honeycomb Infill.
n A further height adjustment above
required between the fermacell Levelling Compound and the mineral wool
the fermacell Honeycomb Flooring
insulation boards as a load distribution
can be achieved with fermacell Dry
board (see Detail).
Levelling Compound (see section
3.3.3, fermacell Dry Levelling
Compound.
fermacell Flooring Element 2 E 22
Suitable mineral wool or other insulation board
(check point loading)
10 mm fermacell Gypsum Fibreboard, laid loosely
fermacell Levelling Compound
Bare floor
Detail: Suitable mineral wool insulation boards on fermacell Levelling
Compound with a dry butted fermacell Gypsum Fibreboard, laid as a load
distribution board.
22
3.6
Underfloor heating systems
3.6.1
fermacell Flooring Elements
3.6.2
Areas of use
boards (see example 2). The heat is
over underfloor heating systems
The underfloor heating manufacturer
distributed by special heat conducting
For warm water under-floor heating
must be consulted w
ith regard to use in
plates. The Flooring Elements lay over
systems, the 25 mm 2 E 22 or 20 mm
areas with high load requirements.
the heat conducting plates.
2 E 11 fermacell (only for specific systems) Flooring Elements are the ideal
3.6.3
Hot water underfloor heating
solution; providing the fast response
systems
times not possible with concrete
Hot water underfloor heating systems
screeds, coupled with the rapid installa-
for dry flooring typically consist of
tion of a dry flooring system. Further
heating pipes in special moulded
detailed information is available in the
boards, e.g. moulded polystyrene
document ”fermacell Dry Flooring
boards or routed wood fibre insulation
Elements – Instruction Manual”.
Flooring Element
2 E 22
Powerpanel H2O Flooring
Element
Description
2 x 12.5 mm Gypsum Fibreboard
2 x 12.5 mm Powerpanel H2O board
Thickness (mm)
25
25
Size (mm)
500 x 1500
500 x 1250
Weight (kN/m2)
0.29
0.25
Thermal resistance (m2k/W)
0.08
0.14
Application recommendations
– Hot water underfloor heating
– Domestic wet rooms
– Inlet temperatures max. 55 °C
– Hot water or electric
underfloor heating
– Wet rooms
– No limitation of
inlet temperatures
The fermacell Flooring Elements
shown in the table can be used on the
following installed underfloor heating
systems.
23
Another hot water heating system is the
3.6.4.
Electric underfloor heating
so-called climate-controlled floor. This
systems
only suitable for use with fermacell
system consists of heating media-
Electrically powered heating systems,
Flooring Elements after consultation
conducting boards, e.g. made of routed
e.g. thin-bed heating mats, are generally
with the floor heating system manufac-
fermacell Gypsum Fibreboards (see
installed directly underneath the floor
turer. Heat accumulation (hot spots) due
example 1).
covering. They primarily serve as addi-
to the covering of the heating surface,
tional heating or floor tempering.
e.g. by furniture or other heat insulating
An inlet temperature of 55 °C must not
Electric underfloor heating systems are
layers (e.g. thick carpets, textiles , etc..)
be exceeded for fermacell Flooring
The Powerpanel H2O Flooring Elements
must avoided at all times. The maximum
Elements!
are very well suited for electrical under-
temperature must not exceed 50 °C at
floor heating systems due to their mate-
any point on the flooring elements!
There is no limitation of inlet tempera-
rial properties.
ture for the fermacell Powerpanel H2O
Flooring Elements due to its material
properties.
Surface finish
Climate-controlled floor
fermacell Flooring Element
(e.g. 2 E 22 or Powerpanel H2O
Flooring Element)
Suitable insulation
(check point load capability)
Substrate - flat and dry
Example 1:
Climate-controlled floor on fermacell
Flooring Element 2 E 22 or Powerpanel
H2O Flooring Element
fermacell Flooring Element
(e.g. 2 E 22 or Powerpanel H2O
Flooring Element)
Heat-conduct
ing plate
Underfloor heating system
if necessary, level out with fermacell
Self-Levelling Compound
Substrate - flat and dry
Example 2:
fermacell Flooring Element 2 E 22
or Powerpanel H2O Flooring Element
on hot water underfloor heating
24
For larger cavities, such as pipe assem-
3.6.6
If for structural reasons, additional
blies in the heating circuit area, addi-
Additional insulation materials under-
insulation material is required under-
tional supporting measures are re-
neath suitable underfloor heating are
neath the underfloor heating system, it
quired, e.g. the installation of sheet
specified in the table below. The thick-
must be a flooring grade type and
metal, due to the greater voids under
nesses, incl. moulded underfloor heat-
suitable for use in these areas.
the contact surfaces. For further details
ing system board, must be observed.
3.6.5
Installation guidelines
Additional insulation layers
contact the underfloor heating
If underfloor heating system
s are being
Differing insulation material and insula-
manufacturer.
used with fermacell Levelling Com-
tion thicknesses may be used, however,
pound, a loosely laid 10 mm fermacell
Heat-conducting plates or heating
check with the fermacell technical
Gypsum Fibreboard must be placed as
elements must not be bent, so that the
department.
a load-distributing board (joint offset
flooring elements can lay flat.
min. 400 mm) between the levelling
compound and the moulded underfloor
Before installing flooring elements, it is
heating system board (see Detail 1).
recommended to add a separating layer
(e.g. DPM or similar min. 0.2 mm or
When using approved mineral wool
kraft paper) on the moulded underfloor
insulation boards underneath the
heating boards, to prevent the flooring
underfloor heating, a 10 mm fermacell
elements from sticking to the under-
Gypsum Fibreboard must be placed as a
floor heating system.
load-distributing board(joint offset min.
400 mm) between the
mineral wool
insulation board and the moulded
underfloor heating system board (see
Detail 2).
Powerpanel
H2O Flooring Element
– max. 90 mm polystyrene hard
foam insulation (EPS DEO 150)
or
– max. 120 mm extruded hard
foam insulation (XPS DEO 300)
– max. 90 mm polystyrene
hard foam hard (EPS DEO 150)
or
– max. 120 mm extruded
hard foam hard (XPS DEO 300)
Additional insulation material in
area of application 1
– Thickness incl. moulded
underfloor heating board
– Install insulation material in
single layer
3.6.7
Flooring element
2 E 22
Underfloor heating details
fermacell Flooring Element
(e.g. 2 E 22 or Powerpanel H2O
Flooring Element)
Heat-conducting plate
Underfloor heating system
fermacell Flooring Element
(e.g. 2 E 22 or Powerpanel H2O
Flooring Element)
Heat-conducting plate
Underfloor heating system
10 mm fermacell gypsum
fibreboard, loosely laid
fermacell Levelling Compound
10 mm fermacell gypsum
fibreboard, loosely laid
Suitable mineral wool or other acoustic
insulation (check point load) insulation board
Substrate – flat and dry
Detail 1: Underfloor heating system on fermacell Levelling Compound, with
a fermacell Gypsum Fibreboard load distribution board
Substrate – flat and dry
Detail 2: Underfloor heating system on additional mineral wool insulation
board, with a fermacell Gypsum Fibreboard load distribution board
When installing the latest fitting installation guidelines from Fermacell GmbH and the corresponding underfloor heating
manufacturer as well as applicable national guidelines and rules must be observed!
25
4 Installation
4.1 Installation of
fermacell Flooring Elements
Installation diagram 1 –
installation towards the door
opening
4.1.1
Preparation
4.1.2
Tools
diagram 2.
fermacell Flooring Elements are easy
For fermacell Gypsum Fibreboard and
The overlaps are only removed from
to install. Ensure that the floor is clean,
Powerpanel H2O Flooring Elements.
the first row to ensure a tight fit
dry and even,
so that the fermacell
The flooring elements can be cut with
against the wall. Use the off-cut
flooring rests on the entire surface. The
standard tools. We recommend the use
from the end of the first row of flooring
board laps are glued and fixed together
of hand-held circular saws with a guide
elements to start the next run of
(screwed or stapled).
and vacuum extraction. Blades should
boards (minimum length 250 mm and
be carbide tipped and have approxi-
leave the protruding edge in place),
Perimeter strips
mately 16 teeth. A slower cutting speed
avoiding cross-joints.
All adjoining components (e.g. walls,
reduces dust levels.
4 The overlaps are glued with
supports, heating pipes) must be decoupled from the flooring construction (incl.
For small detail cuts use a jig saw or a
fermacell Flooring Adhesive
floor coverings!) by fermacell Perimeter
hole saw. Wear suitable dust mask
(coverage: 20–25 m2 per bottle).
Strips.
protection.
Follow the instructions on t
he
packaging.
Ensure that the perimeter strips are not
5 The boards are screwed or stapled
compressed during installation.
4.1.3
Installation Method
together through the ship lap joints.
Any protruding perimeter strips should
1 Place a perimeter isolation strip
This holds the edges securely whilst the
be cut off level with the finished floor.
along the walls to avoid acoustic
glue expands through the joint and
flanking transmission, and to allow
cures. Stand on the overlaying shiplap
for differential movement.
side when fixing boards together. This
ensures a flat joint.
2 First row of boarding: Cut off protrud-
Note:
With regard to fire protection requirements,
mineral wool perimeter
strips (e.g. fermacell)
with a melting point
≥ 1 000 °C should be used.
ing edges on two sides of the first
6 When the glue is dry and the
element and on the long side of the
excess has been scraped off,
following element.
fermacell Joint Filler should be
used, if required, to fini
shing the
3 Lay the fermacell Flooring Elements
as shown in diagram 1.
If the fermacell Flooring Elements
are being laid on dry levelling compound, we recommend that you work
from the door to avoid disturbing the
granules. This method is shown in
joints and screw or staple heads.
26
Installation in Corridors
Fixing of glued flooring joints
The flooring elements should be fitted
The elements must be screwed or
longitudinally in corridors or in small
stapled together within 10 minutes to
rooms.
prevent lipping due to the natural expansion of the glue.
Wear Suitable PPE when installing
Installation diagram 2 –
installation away from the door
opening
fermacell Flooring Elements. If skin is
Fixing Centres:
contaminated with the flooring glue,
Screws:
then rinse off immediately with soap
n 200 mm for the fermacell Flooring
and water. Hands contaminated with
glue must be immediately cleaned with
soap and water. Refer to COSHH data
Elements (fermacell Flooring
Screws)
n
150 mm for Powerpanel H2O Flooring
Elements (Powerpanel flooring
sheets.
screws)
n 150 mm for fermacell Flooring
Elements and Powerpanel H2O
1➞2
Flooring Elements (fermacell
Diverging Staples (chisel point)
To ensure a flat joint, stand on the upper
overlapping flooring element, thus
clamping the two elements together
with your own body weight. This will give
a tight joint while fixing the elements
Installation diagram for Corridor
together.
(Details doorway see section 7.2)
Once hardened (approx. 24 hours at
20 °C and 65 % relative humidity), the
fermacell Floor Glue should be scraped
off with a fermacell Glue Scraper,
spatula or a chisel.
Glue bead approx. 5 mm Ø
fermacell Flooring Elements can be
walked on carefully during installation.
The flooring elements are only fully
weight-bearing once the fermacell
Floor Glue has completely hardened
TIP:
After applying the
glue, place the bottle
down so that any trailing glue can drop
onto the shiplap edge.
(approx. 24 hours at
a normal indoor
climate 20 °C and 65 % humidity).
27
Apply perimeter strips and
push into the perimeter
junctions
Saw off any protruding edges
for the first row
Install the fermacell
Flooring Element
Apply the fermacell Floor
Glue to the shiplap joint
Glue the elements to ensure
fully bonded
Fix by screwing ... or stapling
within 10 minutes - stand on the
overlapping edge element
4.1.4
Increasing the load-bearing
capacity of fermacell Flooring
n Ensure the flooing is ready to receive
an additonal layer.
Elements – Installing a Third Layer
n Lay the 3rd layer at 90° to the base
This can be simply achieved by adding
n minimum joint offset 200 mm.
either a 10 mm or 12.5 mm fermacell as
n Apply beads of flooring glue in lines
layers.
a third layer.
at 100 mm centres. Usage approx
Preparation
n apply the glue max. 10mm away from
7 m² per bottle (130-150 g/m²).
The floor surface must be ready for
covering (see section 6) before installing
the 3 rd layer.
the jo
int edges.
n for installing with greeline Floor Glue,
see the appropriate section on page
28.
Fix with fermacell Floor Screws or
diverging Staples in a 250 mm x 250 mm
grid pattern
Glue bead at the edge of the board
Installation diagram 3 rd layer
28
4.2
fermacell Floor Glue greenline
As an alternative to fermacell Floor
Glueing the 3 rd layer
Glue, greenline Floor Glue may be used.
Glue and fit the 3rd layer as per the
normal fermacell floor glue. N.B.:
Usage
Glue beads (5 mm Ø) should be laid in
Shake fermacell greenline floor glue
lines at max 50 mm centres. Usage
before use.
350-400 g/m².
Jointing
Install in the same way as the standard
floor glue.
Additional notes:
n Remove excess glue after 5-30
minutes with a scraper.
n Do not walk on the surface for 24 hrs.
Leave to cure for this time at an
ambient indoor climate of 20 °C and
50 % RH.
Material properties
n Remove any hardened glue.
n After 73 hours the full load bearing
capacity of the flooring element joi
nts
are achieved.
Usage
Shiplap Joint edge: approx. 40 g/linear metre (approx. 80-100 g/m²)
(10-12 m²/bottle) 3rd layer: approx. 350–400 g/m2 (2-3 m²/bottle)
Glue usage temperature
min. +10 °C to max. +35 °C
Recommended: +15 °C to +25 °C
Substrate and room temperature
≥ +5 °C
Accessibility of Floor
after approx. 24 hrs. (20 °C, 50 % RH)
Full load-bearing capacity of Floor
after approx. 72 hrs. (20 °C, 50 % RH)
Storage Instructions
18 months, cool, dry, protected from Frost*
Consistency
Viscous
Colour
Light green
* Short-term exposure to frost during transport and storage will not damage fermacell greenline Floor Glue.
1
2
3a
3b
29
4.3 Expansion/movement joints for fermacell Gypsum Fibreboard
and Powerpanel H2O Flooring Elements
Expansion joints
Movement joints
These are required at maximum
(see section 7 for Details).
20 linear meter intervals.
These are not required at door openings
Main construction movement joints
or changes in areas.
must be mirrored through both the
They are required where there is a
substrate and the fermacell Flooring
material change in the floor substrate
System.
(i.e. timber to concrete etc..)
The final position of expansion/movement joints in the flooring must be
determined by the planner /designer on
site, and in coordination with all relevant
parties.
approx. 10 mm
Floor Finish with movement Bead or similar section
fermacell Flooring Element
e.g. 2 E 31
Wood fibre
Supporting board
e.g. plywood, width >100 mm
fermacell Dry Levelling Compound
Base floor /substrate
Movement joint on fermacell Dry Levelling
Compound with fermacell 2E31 Flooring
Element
30
5 Flooring exposed to moisture and humidity
5.1
Introduction
For areas of high humidity or exposure
For especially harsh environments
to moisture the substrate and surround-
a higher performance waterproofing
ing area must be appropriately sealed
system may be required, refer to
and protected.
manufacturers guidelines.
Th
is protection can take the form of a
waterproofing membrane or a proprietary sealing system, e.g. fermacell
Waterproofing System.
The cement-based
fermacell Powerpanel
H2O Flooring Elements
are suitable for wet
areas.
31
Definition of humidity exposure classes - Guidance
The following is a reference guide based on German requirements.
For project specific requirements refer to the specification and relevant British & European Standards.
Exposure class
Type of exposure
Area of application
Humidity exposure classes for low or minor exposure areas . Refer to British Standards as required.
In accordance with Bundesverband der Gipsindustrie e. V. “Bathrooms and wet rooms in timber and drywall construction”, as at 02/2014
0
Wall, floor and ceiling surfaces, which are only occasionally,
slightly exposed to water spray for a short time.
n Guest WCs (no shower or bath facilities)
n Kitchens for domestic use
n on walls in the area of sanitary facilities
e.g. hand washbasins and wall
-hung WCs
n on ceilings in bathrooms for domestic use
A0
Wall, floor and ceiling surfaces, which are only occasionally,
moderately exposed to water spray for a short time.
In bathrooms for domestic use or hotel bathrooms directly in
the water spray zone of showers and bathtubs with shower a
screen, with and without a floor drain, e.g. showers
Humidity exposure classes in High Exposure approved areas (high exposure)
Guidance Details - refer to British Standards for further information
A
Wall and floor surfaces, with high exposure due to non-pressured water in internal areas
Walls and floors in public showers
Suitable substrates for bonded waterproof membranes
Humidity exposure classes
fermacell Flooring Elements
fermacell Powerpanel H2O Flooring Element
0
A0
A
low
moderate
high
Floor
Floor
Floor
DMR 1)
—
2)
MR
Calcium sulphate flooring
DMR 1)
—
Cement flooring
DMR
MR
1)
2)
Not permissible in areas with integrated floor drains (e.g. barrier-free shower ar
eas)
Edge junctions, movement joints and openings must be constructed with sealing tape and a liquid waterproofing application.
D
M
R
Area without the need for waterproofing (to be waterproofed if deemed necessary and as instructed by the client or designer)
Application not permitted
Polymer dispersion system = fermacell Waterproofing Application
plastic-cement mortar combination
Specialist Resin Solution
Note:
fermacell Flooring
Elements are not suitable
for areas of High humidity
such as Swimming Pools,
Wet rooms, Changing and
showering areas in leisure centres
32
5.2
Waterproofing systems
The fermacell Waterproofing System is
n fermacell Deep Primer,
a bonded waterproof membrane, which
n fermacell Waterproofing Application
is applied directly to the fermacell
(polymer dispersion),
With regard to water-
n fermacell Flexible Sealing Tape,
boards, consisting of:
Note:
n fermacell internal/external corner
sections,
n fermacell pipe penetration patches
n and fermacell F
lexible Tile Adhesive
(thin-bed mortar) or other approved
flexible tile adhesives
proofing systems for
extreme and high level
humidity exposure,
please contact specialist
manufacturers for their
guidelines.
In all cases refer to Relevant Country Standards.
> 300 mm
> 300 mm
> 200 mm
> 200 mm
> 200 mm
Shower with raised shower tray
Shower with in-built floor drain
No or low exposure to waterspray (exposure class 0)
Moderate exposure to waterspray (waterspray zone, exposure class A0)
> 200 mm
> 300 mm
> 200 mm
Domestic bathroom with bath and
shower
> 200 mm
33
5.3
Installing the waterproofing system
Fit the required fermacell or Powerpa-
Finish any joints as shown below:
nel Flooring Elements as described in
n fermacell Flooring Elements with
chapter 4. Ensure surfaces are clean,
fermacell Joint Filler
n fermacell Powerpanel H2O Flooring
level and flat.
Elements with Powerpanel surface
finish (see section 3.3 – filling/
levelling)
Apply the waterproofing syste
m as
shown in the details below.
Installation sequence – fermacell Waterproofing System
1
Apply fermacell Deep Primer
to perimeter wall area …
5
Immediately apply a coating
of fermacell Waterproofing
Application to the Sealing
Tape
2
… and floor area using a
roller
6
When using fermacell Powerpanel H2O Flooring Element
only apply the fermacell
Waterproofing System to
the internal corner areas.
3
Apply fermacell Waterproofing Application to the internal corners
7
When using fermacell
Flooring Elements, the entire
surface must be completely
waterproofed
4
Press fermacell Flexible
Sealing Tape into the wet
waterproofing application
8
For the fermacell Powerpanel
H2O Flooring Shower Element,
the waterproofing system is
applied to all joint areas
34
6 Floor coverings
6.1
Installation Tolerance Guidelines
The following table shows the guideline
The maximum displacement of the dry
The following moisture content value
values for tolerance levels on completed
floori
ng construction relevant to the
must not be exceeded:
fermacell floors*
permissible point load allowance at the
n fermacell Gypsum Fibre 1.3 % (mass
perimeter must not exceed 3 mm.
percent according to the Darr method)
The flooring elements are ready for
The floor surface including the joints
application of a covering or final finish
must be dry, solid and free of stains,
when they have acclimatised. This is
dust and grease.
normally achieved after 48 hours at an
Any residue fermacell Floor Glue must
ambient air temperature above 15 °C
be scraped off (see section 4.1.4) sur-
and max. 70 % relative humidity.
faces contaminated with glue will com-
Measurement section
(m)
Allowable Tolerance
measurement (mm)
1.00
3
2.00
5
4.00
9
* Depending on the project requirements, different
tolerances's may be required.
The maximum height difference at the
promise the adhesion of other surface
joints between elements must not
finishes.
exceed 2 mm.
Tolerance measurem
ents for fermacell
Flooring Elements
35
6.2
Carpeting, PVC, cork and other floor coverings
n When laying self-adhesive carpet
For thin floor coverings (carpet, PVC,
The self levelling compound must be
tiles and waterpermeable floor
etc.) in broadloom or tile form the
completely dry before proceeding with
coverings, the use of a suitable
entire floor surface should be treated
the next stage of the work. The drying
primer is recommended.
with a suitable self levelling feather
times specified by the manufacturer
screed. These feather screeds should
must be observed.
n Carpeting should be secured with
double-sided adhesive tape.
n If a carpet is to be bonded to over the
be suitable for use with a gypsum based
board. These are applied in liquid form,
In the case of thicker carpeting materi-
entire area of the floor, we recom-
drying to form a perfectly flat, level
al, it is normally sufficient to apply a thin
mend the use of a peel-off adhesive
surface. This is to
ents for fermacell
Flooring Elements
35
6.2
Carpeting, PVC, cork and other floor coverings
n When laying self-adhesive carpet
For thin floor coverings (carpet, PVC,
The self levelling compound must be
tiles and waterpermeable floor
etc.) in broadloom or tile form the
completely dry before proceeding with
coverings, the use of a suitable
entire floor surface should be treated
the next stage of the work. The drying
primer is recommended.
with a suitable self levelling feather
times specified by the manufacturer
screed. These feather screeds should
must be observed.
n Carpeting should be secured with
double-sided adhesive tape.
n If a carpet is to be bonded to over the
be suitable for use with a gypsum based
board. These are applied in liquid form,
In the case of thicker carpeting materi-
entire area of the floor, we recom-
drying to form a perfectly flat, level
al, it is normally sufficient to apply a thin
mend the use of a peel-off adhesive
surface. This is to
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