Verified by manufacturer 30 days ago
R31 - 26 mm
Stitch quilted acoustic membrane with aluminium foil facing.
Suitable applications include:
muftilag-R® is stitch quilted, preventing delamination and fibre migration and then bonded to a heavy mass layer and finished with aluminium foil facing, available in silver or black.
Features and benefits:
Color | Silver Black |
Finish | Foil |
Material | Rock mineral wool Aluminium |
Shape | Rectangle |
Length | 2000 mm |
Width | 1200 mm |
Height | 26 mm 27 mm 30 mm 50 mm 52 mm |
Warranty description | One year Other |
Uniclass | |
CAWS | K40/55 Insulation K40/285 Insulation U90/490 Site-applied insulation to ductwork |
Thermal conductivity at 10°C (maximum) | Manufacturer's standard.Manufacturer guidanceConsult manufacturer for details. |
Thickness (minimum) | 26 mm. |
Facing | Metal foil laminate. |
Fire performance | To BS EN 13501-1, B-s1,d0 (when mechanically fixed to an A1 substrate). |
Sound insulation rating | 23 dB.Manufacturer guidanceSound reduction index. |
Recycled content | None permitted. |
Weighted sound reduction index, Rw | 24 dB. |
Sheet size | 2000 x 1200 mm. |
Weight | 4.8 kg/m². |
Colour | Black. Silver. Manufacturer guidanceAluminium foil colour. |
Contains Red List materials | No |
Material | Rock mineral wool Aluminium |