This document provides information on fire protection systems using cross laminated timber (CLT) and fermacell products. It describes various wall and ceiling lining systems using fermacell gypsum fibreboards, powerpanels, and firepanels. These systems provide fire resistance ratings of up to EI 90 while some also improve sound insulation. System specifications are provided along with thickness, weight, acoustic, and fire protection details.
2. fermacell
at a glance
Products and solutions
Last updated March 2014
2
1 Jointing 3
Joint design 3
2 Wall 4-11
3 H 12 CLT fermacell
Gypsum Fibreboard Wall Lining 4-5
3 H 11 H2
O CLT fermacell
Powerpanel H2
O Wall Lining 6-7
3 H 21 A1 CLT fermacell
Firepanel A1 Wall Lining 8-9
3 H 31 A1 CLT fermacell
Firepanel A1 Wall Lining 10-11
3 Ceiling 12
2 S 11 fermacell suspended
ceiling (fire rated) 12-13
4 K-Class system 14
Fire Strategy 15
Table of contents
Additional information
Website:
n www.fermacell.com
Brochure:
n fermacell at a glance
Project Eurban Limited – 33 Waterson Street, London
3. 3
1 Jointing
Note:
Dry butt joints for fire
rated linings are possible
if there are no require-
ments for the surface
finish. Butt joints will be
visible in some finishes.
The installation needs to
follow the instruction as
per approval.
Joint design
Gypsum Fibreboard
n fermacell Gypsum Fibreboard
n fermacell Firepanel A1
Joint design
There are different options for the
jointing of Gypsum Fibreboards. Some
specific rules must be followed for fire
rated linings. The following details show
the different joint options available for
fermacell Gypsum Fibreboards or
fermacell Firepanels A1.
It is important to choose the appropriate
joint design early on in the design
process. The following joint options are
suitable for fire rated linings.
Dry butt joint – Gap ≤ 1mm fermacell Joint Filler1)
– Joint width ½ ×
panel thickness + max. 3 mm
fermacell Glued Joint1)
–
Joint width ≤ 1 mm
fermacell Tapered Edge Board1)
–
fermacell Jointing Tape and fermacell
Joint Filler
1)
The differential movement of the material must be considered if the Fermacell
boards are fixed directly on to the CLT. Joints can open up due to the
differential movement of the substrate. This must be specially considered if
a wet screed system is being installed or heaters are used for the drying
out process.
4. 4
3 H 12 CLT fermacell Gypsum Fibreboard Wall Lining
A high performance dry lining system
with fermacell Gypsum Fibreboards.
This is a wall lining system which is
used to protect the CLT structure
against fire. It also provides a high
level of sound insulation.
Material
Material class (EN 13501-1)
n A2 s1 d0
Material (regulations/standards)
n ETA-03/0050
n EN 15283-2
Element
Fire Protection
(CR: K-3401/3686-MPA BS)
n EI 30
Insulation
n not required
Thickness
n 46.5 + x + 46.5 mm
Weight
n ≈ 2 × 28 kg/m²
(without CLT)
Acoustic
n ∆Rw
≥ 56 dB
incl. glass wool
Benefits
Typical performances of the system:
n Fire protection – no insulation required
n Acoustics
- optional insulation for improved sound
insulation
n Fittings
- up to 35 kg per screw
- up to 60 kg with cavity dowels / cavity
wall anchors.
fermacell Gypsum Fibreboards are
used for drylining as:
n Lining boards
n Fire boards
n Wet area boards
2 Wall
No fire exposure for the CLT – Lining system provides EI 30 performance –
CLT structure protected for 30 min.
5. 5
3 H 12 CLT fermacell Gypsum Fibreboard Wall Lining
Example of system specification
1 10 mm fermacell Gypsum Fibreboard
2 12.5 mm fermacell Gypsum Fibreboard
3 18–19 mm Diverging Staples (galvanised
and resinated) – Spacing ≤ 150 mm
4 15.3 × 35 mm Staples (galvanised and
resinated) – Spacing ≤ 250 mm
5 Butt joint – Gap ≤ 1 mm
6 fermacell Jointstick – Width of joints ≤ 1 mm
7 Battens 48 × 24 mm
8 Fixing screw
9 Insulation (optional)
System Specifications
1 823 5 6 94 7
All these system specification options are possible:
Thickness Studs – Substructure fermacell
Gypsum Fibre-
board lining
Insulation –
Mineral wool
thickness/ density
Wall lining
weight – each
side max.
Air-borne sound
insulation Rw
Ctraffic
factors
mm mm mm mm / kg/m3
kg/m² dB (C100-3150
/ C tr100-3150
)
72,5 + 10 (gap) CW50 × 0.6 DIN standard studs – metal 12.5 + 10 40/10 without 30 75* (-6, -15)
97,5 + 10 (gap) CW75 × 0.6 DIN standard studs – metal 60/10 > 75* (-6, -15)
ca. 70 CD30-27 Adjustment bracket – metal
60 × 40 studs – timber C24
40/10 66* (-3, -9)
46.5 48 × 24 studs – timber C24 20/10 56* (-3, -13)
22.5 none without 41 (-1, -2)
EI 30
* Standard values, calculated by Sound insulation Software incl. Mineral wool
EI 30
6. 6
3 H 11 H2
O CLT fermacell Powerpanel H2
O Wall Lining
Material
Material class (EN 13501-1)
n A1
Material (regulations/standards)
n ETA-07/0087
Element
Fire Protection
(CR: K-3015/439/07-MPA BS)
n EI 30
Insulation
n 60 mm / 30 kg/m³
Thickness
n ≥ 110 + x + 110 mm
Weight
n ≈ 2 × 28 kg/m²
(without CLT)
Acoustic
n ∆Rw
≥ 75 dB
incl. mineralwool
A high performance dry wall system
with the fermacell Powerpanel H2
O
boards. This is a wall lining system
which is used to protect the CLT
structure against fire. It also provides
a high level of sound insulation and
a high moisture resistance.
Benefits
Typical performances of the system:
n Fire protection – A1 classification
n Wet area – high resistance against
moisture in wet areas
n Concrete like surface
n Fittings – up to 60 kg with cavity
dowels / cavity wall anchors
fermacell Powerpanel H2
O boards are
used for drylining as:
n Lining boards
n Fire boards
n Wet area boards for high moisture
resistance
No fire exposure for the CLT – Lining system provides EI 30 performance –
CLT structure protected for 30 min.
7. 7
3 H 11 H2
O CLT fermacell Powerpanel H2
O Wall Lining
Example of system specification
1 12.5 mm fermacell Powerpanel H2
O
2 3.9 × 35 mm fermacell Powerpanel H2
O
Screws – Spacing ≤ 400 mm
3 3.9 × 50 mm fermacell Powerpanel H2
O
Screws – Spacing ≤ 250 mm
4 Butt joint – Gap ≤ 1 mm
5 fermacell Jointstick – Gap ≤ 1 mm
6 C-Stud CW50-0.6
7 U-Profile UW50-0.6
8 40/60 mm Mineral Wool – 30 kg/m3
System Specifications
1 2 34 5 86 7
Thickness Studs – Substructure fermacell
Powerpanel
H2
O lining
Insulation –
Mineral wool
thickness/ density
Wall lining
weight – each
side max.
Air-borne sound
insulation Rw
Ctraffic
factors
mm mm mm mm / kg/m3
kg/m² dB (C100-3150
/ C tr100-3150
)
75 + 10 (gap) CW50 × 0.6 DIN standard studs – metal 12.5 + 12.5 40/30 28 75* (-6, -14)
100 + 10 (gap) CW75 × 0.6 DIN standard studs – metal 60/30 > 75* (-6, -14)
Only one system specification option is possible:
EI 30
* Standard values, calculated by Sound insulation Software incl. Mineral wool
EI 30
8. 8
3 H 21 A1 CLT fermacell Firepanel A1 Wall Lining
A high performance dry wall system
with the new fermacell Firepanel A1.
This is a wall lining system which is
used to protect the CLT structure
against fire. It also provides a high
level of sound insulation.
Material
Material class (EN 13501-1)
n A1
Material (regulations/standards)
n EN 15283-2
Element
Fire Protection
(CR: KB 3.2/11-035-3)
(AS: 3.2/14-276-1)
n EI 60
- Lining EI 60
- full loaded CLT
Insulation
n not required
Thickness
n ≥ 80 + x + 80 mm
Weight
n ≈ 2 × 40 kg/m² (without CLT)
Acoustic
n ∆Rw
≥ 65 dB
incl. glass wool
Benefits
Typical performances of the system:
n Fire protection – A1 classification
- lean efficient constructions
- no insulation required
n Acoustics
- optional insulation for improved
sound insulation
n Fittings
- up to 35 kg per screw
- up to 60 kg with cavity dowels /
cavity wall anchor
fermacell Firepanels A1 are used for
drylining as:
n Lining boards
n High performance fire boards
n Wet area boards
No fire exposure for the CLT – Lining system provides EI 60 performance –
CLT structure protected for 60 min.
9. 9
3 H 21 A1 CLT fermacell Firepanel A1 Wall Lining
Example of system specification
1 15 mm fermacell Firepanel A1
2 25–28 mm Diverging Staples (galvanised
and resinated) – Spacing ≤ 150 mm
3 15.3 × 40 mm Staples (galvanised and
resinated) – Spacing ≤ 250 mm
4 Butt joint – Gap ≤ 1 mm
5 fermacell Jointstick – Gap ≤ 1 mm
6 Lathing 60 × 40 mm
7 Adjustment bracket CD30-27
8 Insulation (optional)
9 Fixings at Adjustment bracket –
screws
System Specifications
1 2 94 5 8 367
All these system specification options are possible:
Thickness Studs – Substructure fermacell Firepanel A1
lining
Insulation –
Mineral wool
thickness/ density
Wall lining
weight – each
side max.
Air-borne sound
insulation Rw
Ctraffic
factors
mm mm mm mm / kg/m3
kg/m² dB dB
80 + 10 (gap) CW50 × 0.6 DIN standard studs – metal 15 + 15 40/10 without 40 85* (-7, -15)
105 + 10 (gap) CW75 × 0.6 DIN standard studs – metal 60/10 85* (-7, -15)
ca. 80 CD30-27 Adjustment bracket – metal
60 × 40 studs – timber C24
40/10 65* (-2, -5)
54 48 × 24 studs – timber C24 20/10 55* (-3, -8)
30 none without 43 (-1, -2)
EI 60
* Standard values, calculated by Sound insulation Software incl. Mineral wool
EI 60
10. 10
3 H 31 A1 CLT fermacell Firepanel A1 Wall Lining
A high performance dry wall system
with the new fermacell Firepanel A1.
This is a wall lining system which is
used to protect the CLT structure
against fire. It also provides a high
level of sound insulation.
Material
Material class (EN 13501-1)
n A1
Material (regulations/standards)
n EN 15283-2
Element
Fire Protection
(CR: KB 3.2/11-035-4)
(AS: 3.2/14-276-1)
n EI 90
- Lining EI 90
- full loaded CLT
Insulation
n not required
Thickness
n ≥ 37.5 + x + 37.5 mm
Weight
n ≈ 2 × 47 kg/m² (without CLT)
Acoustic
n ∆Rw
≥ 45 dB
Benefits
Typical performances of the system:
n Fire protection – A1 classification
- lean efficient constructions
- no insulation required
n Acoustics
- optional insulation for improved
sound insulation
n Fittings with full thread srews
- with a high load carrying ability
fermacell Firepanels A1 are used for
drylining as:
n Lining boards
n High performance fire boards
n Wet area boards
No fire exposure for the CLT – Lining system provides EI 90 performance –
CLT structure protected for 90 min.
11. 11
3 H 31 A1 CLT fermacell Firepanel A1 Wall Lining
Example of system specification
1 12.5 mm fermacell Firepanel A1
2 21–22 mm Diverging Staples (galvanised
and resinated) – Spacing ≤ 150 mm
3 15.3 × 45 mm Staples (galvanised and
resinated) – Spacing ≤ 250 mm
4 Butt joint – Gap ≤ 1 mm
5 fermacell Jointstick – Gap ≤ 1 mm
System Specifications
1 245
All these system specification options are possible:
3
Thickness Studs – Substructure fermacell Firepanel A1
lining
Insulation –
Mineral wool
thickness/ density
Wall lining
weight –
each side max.
Air-borne sound
insulation Rw
Ctraffic
factors
mm mm mm mm / kg/m3
kg/m² dB dB
87.5 + 10 (gap) CW50 × 0.6 DIN standard studs – metal 12.5 + 12.5 + 12.5 40/10 without 50 85* (-7, -15)
112.5 + 10 (gap) CW75 × 0.6 DIN standard studs – metal 60/10 85* (-7, -15)
ca. 85 CD30-27 Adjustment bracket – metal
60 × 40 studs – timber C24
40/10 68* (-1, -4)
85.5 48 × 24 studs – timber C24 20/10 59* (-3, -9)
37.5 none without 45 (-1, -3)
EI 90
* Standard values, calculated by Sound insulation Software incl. Mineral wool
EI 90
12. 12
A high performance suspended ceiling
system with the fermacell Gypsum
Fibreboards. This is a fire rated
suspended ceiling system.
fermacell Gypsum Fibreboards are used
for ceilings as:
n Lining boards
n Fire boards
n Use
- Mechanical resilience
- Impact resistance, high resistance
against impact forces.
Element
Fire Protection
(GA 3368/618/14 MPA BS)
(CR: PK2-07-04-008-A-1)
n EI 30 – from below
Insulation
n not required
Lining
n 2 × 10 mm
Ceiling weight
n ≥ 28 kg/m²
Construction depth
n ≥ 75 mm
Material
Material class (EN 13501-1)
n A2 s1 d0
Material (regulations/
standards)
n ETA-03/0050
n EN 15283-2
3 Ceiling
2 S 11 fermacell suspended ceiling (fire rated)
Benefits
Typical performances of the system:
n Fire protection – no insulation
required
n Installation
- Square Edge board in the first layer
with dry Butt Joint < 1 mm
- second layer can be fixed directly in
the first layer independent of the
substructure.
13. 13
Example of system specification
1 10 mm fermacell Gypsum Fibreboard
2 3.9 x 30 mm fermacell Screws –
Spacing ≤ 200 mm
3 18–19 mm Diverging Staples
(galvanised and resonated)
- Spacing ≤ 120 mm
- Row spacing ≈ 350 mm
4 Butt joint – Gap ≤ 1 mm
5 fermacell Jointstick – Gap ≤ 1 mm
6 27 mm CD60-0.6 – Metal profile
7 CD-System connector
8 27 mm CD 60-0.6 – Metal profile
9 CD-Strap hangar
2 S 11 fermacell suspended ceiling (fire rated)
Ceiling type /
Construction type
Fire rating Substructure Construction depth Lining Spacing
support
structure
Insulation –
Mineral wool
thickness / density
Ceiling weight
mm mm mm mm mm / kg/m3
kg/m2
Suspended ceiling –
independently fire
rated
from below CD60 × 0.6 75 2 × 10 ≤ 350 Not required or at least
A2 insulation
≥ 27
80 2 × 12.5 ≤ 435 ≥ 33
System Specifications
2 34 5 81 679
EI 30
14. 14
* this class is not included into European Standards - object-specific assassment required
4 K-Class system
Element
Fire Protection (EN 14135)
n K2
60
Classification Report (EN 13501-2)
n PCA 10107
n PCA 10082
n PCA 10161
Insulation
n none
Thickness
n CLT ≥ 85 mm
Material
Material class (EN 13501-1)
n A2 s1 d0
Material (regulations/standards)
n ETA-03/0050
n EN 15283-2
A high performance dry wall system
for the encapsulation of structural
elements with the fermacell Gypsum
Fibreboards. This is a lining / an
encapsulation which is used to protect
the CLT structure behind against fire.
K2
60
T ≤ 270 °C
Tm
≤ 250 °C
K2
60Requirements for K2
60 class
fermacell Gypsum Fibreboards are
used for drylining as:
n Fire boards
n wet area boards
n External wall alternative – K2
60 (see page 15):
≥ 12.5 mm fermacell Gypsum Fibreboard + Mineral fibre insulation composite
system (Melting point ≥ 1 000 °C, Density ≥ 80 kg/m3
, Minimal thickness 60 mm)
1 2
1 18 mm fermacell Gypsum Fibreboard
2 15 mm fermacell Gypsum Fibreboard
Benefits
Typical performances of the system:
n Fire protection – directly fixed
n high mechanical resistance
- economical and efficient solution
n Fittings with full thread srews
- with a high load carrying ability
Efficient and economical solution
for the fire protection of structural
elements especially in conjunction
with a project specific fire strategy.
Fire protection linings with fermacell Gypsum Boards
"K classes" according
to EN 13501-2
K2
30 K2
45* K2
60 K2
90*
Lining thickness 1 × 18 mm
2 × 10 mm
2 × 15 mm 15 mm / 18 mm
2 × 18 mm
3 × 12.5 mm
3 × 18 mm
15. Investor / client
Architect
Main contractor /
installer
Call for bids
fermacell
Technical installation
fire protection
Organisational
fire protection
Fire defence
protection
Structural
fire protection
Clerk of works
Fire protection
expert
Material test
establishment
Ganzheitliches Brandschutzkonzept
15
isn’t needed. The K2
60 criteria accord-
ing to EN 13501-2[3] is used to assess
the fire performance of the lining
system. Timber structures which have
to fulfil a high performance fire resist-
ance need to comply with K2
60 criteria
(K-classes) for the fire lining. The
system with the K-class ensures the
fire protection of the load bearing
structure for 60 minutes and this
prevents the self-ignition of the timber
element. The self-ignition point of
timber is around 300 °C.
Fire Strategy
An early involvement of the whole
design team in the fire strategy allows
a tailor made solution for a specific
project. It can make the whole fire
strategy more economical and effi-
cient. This is especially important for
multi storey buildings with sprinkler
systems to make use of all the poten-
tial benefits.
Collaboration of the whole design
team from the beginning to the end of
a project is necessary to ensure the
best and most efficient solution for
each project. It also allows a better
quality control from design to comple-
tion of the project. The fire protection
requirements of each individual ele-
ment can be specified and optimised to
give the most efficient solution. This
approach can also enable the reduc-
tion of the required K-class for certain
elements. For example the reduction
from a K2
60 class to K2
45/K2
30, from
K2
90 to K2
60 or a K2
120 to a K2
90, can
result in a much more economical
solution.
An individual fire strategy allows the
realisation of bigger and more com-
plex projects. It takes also project
specific or individual requirements
into account. It can also compensate
for the lack of regulations or guidance
for ground breaking projects.
The CLT structures can provide an
individual and high performance
solution combined together with an
individual fire strategy giving a high
level of protection and redundancy.
The system solutons with the K-class
options describes the fire protective
lining of a load bearing timber struc-
ture. The lining must consist of non-
combustible material to protect the
combustible load bearing structure.
This provides a high performance and
robust fire protection solution. It is
especially suitable for multi storey CLT
buildings. Where the fermacell is
directly applied it provides a very
robust lining which can withstand high
impact forces, for example in lift
shafts where an acoustic separation
External wall alternative – K2
60
Fire Strategy – Collaboration and relations in the design team Project Eurban Limited – 33 Waterson Street, London
16. For additional information please visit
the fermacell website.
Technical modifications subject
to changes
Last updated: 11/2014
The most recent edition applies.
Should you require additional
information, please contact our
fermacell customer service.
fermacell customer service:
E-Mail info@xella.com
fermacell®
is a registered trademark
and a company of the XELLA group.
Fermacell GmbH
Düsseldorfer Landstraße 395
D-47259 Duisburg
www.fermacell.com
www.fermacell-aestuver.com
FC-039-000007/k/11.14