Material performance

Thermal conductivity

Declared thermal conductivity Values for WALLTITE

Thickness (mm)

Conductivity (Wm²/K)

Less than 80mm

0.0269

80mm to 120mm

0.0257

Over 120mm

0.0247

The system uses “permanent” type blowing agents and hasa closed cell content of over 90%. Values are derived using the “fixed increment” procedure after undergoing Normality checks at the BBA.

Covered by test reports 5874 BIN & 5874 BAN.

For diffusion open faces:

Thickness (mm)

Conductivity (Wm²/K)

Less than 40mm

0.0269

40mm to 60mm

0.0257

Over 60mm

0.0247

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Compare WALLTITE with traditional systems

WALLTITE

Glass fibre

Wool

Blown cellulose

Open-cell foam

U-Value (100mm)

0.25

0.33

0.33

0.33

0.33

Approved air barrier system

Yes
Air leakage <0.001 L/s/m² @ 50 Pa at 50mm thickness

No

No

No

Yes
Air leakage 0.005 L/s/m² @ 75 Pa at 130mm thickness

Seamless construction

Yes

No

No

No

Yes

Rigid

Yes

No

No

No

No

Fully adhered

Yes

No

No

No

Yes

Adds structural strength

Yes

No

No

No

No

Long service life

Yes

No

No

No

Yes

Absorbs water

<4% v/v

Yes

Yes

Yes

>40% v/v

Allows moisture vapour in

Minimal

Yes

Yes

Yes

Yes

Material performance - WALLTITE the airtight insulation
BASF The Chemical Company

WALLTITE