Skip to main content
Regional validity

Scope

Building physical assessment

Fire performance REI 60
maximum span = 5 m; maximum load Ed,fi = 3,66 kN/m²  
Classified by IBS  
Thermal performance U 0,18 W/(m2K)
Diffusion adequate
Calculated by HFA  
Acoustic performance Rw (C;Ctr) 50 dB (-2; -7)
Ln,w (Cl)
Assessed by TGM  
Mass per unit area m 48,0 kg/m2
Calculation based on gypsum plaster board type DF GKF
 

Datenblatt flat roof
fdrhbi05b-03 (pdf, 250 KB)

Note

The design of the under-roof construction and of the counter-battens have to be specified according to the roof pitch and the national requirements.

timber frame construction
Cross-section of standard configuration

timber frame construction
Standard configuration

Register of building materials used for this application, cross-section (from outside to inside)

Thickness [mm] Building material Thermal performance Reaction to fire­
λ μ min – max ρ c
A trapezoidal sheet metal roofing A1
B 80,0 spruce wood battens (80/50) 0,120 50 450 1,600 D
C 50,0 spruce wood counter battens (ventilation) 0,120 50 450 1,600 D
D sarking membrane sd ≤ 0,3m 1000 E
E 22,0 softboard [045; 250] - rigid underlay 0,045 5 250 2,100 E
F 200,0 construction timber (80/..; e=800) 0,120 50 450 1,600 D
G 200,0 mineral wool [035; 50; <1000°C] 0,035 1 50 1,030 A1
I 24,0 spruce wood cladding with spacing of cladding boards(24/100); a=400 0,120 50 450 1,600 D
I vapour barrier sd≥ 2m 1000
J 25,0 gypsum plaster board type DF (2x12,5 mm) or 0,250 10 800 1,050 A2
J 25,0 gypsum fibre board (2x12,5 mm) 0,320 21 1000 1,100 A2

Ecological rating (per m2 construction area)

Database ecoinvent

ΔOI3 91,1
Calculated by HFA  

Resources
Lifecycle
Phase
GWP
[kg CO2 Äqv.]
AP
[kg SO2 Äqv.]
EP
[kg PO4 Äqv.]
ODP
[kg R11 Äqv.]
POCP
[kg Ethen Äqv.]
PERE
[MJ]
PERM
[MJ]
PERT
[MJ]
PENRE
[MJ]
PENRM
[MJ]
PENRT
[MJ]
A1 - A3 30,826 0,360 0,167 5,66e-6 0,024 70,955 399,658 470,613 1118,090 22,867 1140,957

Last update 07.05.2020/hfa.plb