Tilebacker technical properties

Technical Properties of foam
Styrofoam* IBF is an HCFC Blue extruded polystyrene foam with closed cellular structure and flame retardant additive. *Trade Mark of Dow Chemical Company.
Compressive strength (50years) <= 2% deflection DIN EN 1606 0.08 N/mm²
Compressive strength at 10% deflection DIN EN 826 0.25 N/mm²
Elastic modulus DIN EN 826 10 N/mm²
Thermal conductivity at 10° DIN EN 12939 0.035 W/Mk
Thermal conductivity in accordance with approval Z-23.15-1476 DIN 4108-4 0.037 W/Mk
Tensile strength DIN EN 1607 0.45 N/mm²
Shear strength DIN EN 12090 0.2 N/mm²
Shear modulus DIN EN 12090 7 N/mm²
Bulk density DIN EN 1602 30kg/m³
Water vapour resistivity (µ) DIN EN 12086 100
Water absorption by long term immersion DIN EN 16087 <=1.5 Vo l.-%
Capillarity 0
Coefficient linear thermal expansion 0.07mm/(mK)
Thermal limit -50/ + 75°C
Fire classification DIN 4102 B1
Technical Properties of wedi building boards
Fire classification according to DIN EN 13501-1
(MPA Erwitee, Report no 230004525)		 B, sl do
Behaviour in according to DIN 4102
(MPA Erwitee, Report no 230004536)		 B1
Thermal Specifications - Length x Width 2500 x 600mm +/- 1.5,,
Nominal thickness in mm Net thickness of foam in m Thermal resistance R-value (m-K/W) Combined internal & external resistance Thermal transmittance U-value (W/m2 x K)
4 (length 1.25m) 0.0038 0.12 0.18 3.33
6 (length 1.25m) 0.0058 0.18 0.18 2.81
10 0.009 0.27 0.18 2.21
12.5(width 625mm) 0.0105 0.32 0.18 2.00
20 0.018 0.55 0.18 1.37
30 0.028 0.85 0.18 1.02
40 0.036 1.15 0.18 0.75
50 0.048 1.45 0.18 0.61