Kerabit Valley Membrane

Kerabit Valley Membrane is a modified bitumen underlay for valleys and chimney and wall upturns. The carrier of the product consists of strong polyester with a modified bitumen coating on both sides. The underside surface is coated with adhesive bitumen, the top with slate granulates.

NOTE! Colors gray-white, green-black, red-black brown-black, Midnight Black and copper will be remobed from our selection. Please check availability!


Manufacturer / Manufactured for Kerabit Oy, Lohja plant
Country of origin Finland
Quality control Quality control carried out at the Plant quality control and a quality control agreement between the Plant and Eurofins Expert Services Oy
Nominal thickness approx. 3,6 mm
Nominal weight 4000 - 4400 g/m²
Weight of the supportive layer 150 - 180 g/m²
Supportive layer reinforced polyester
Surface type

slate granulates /slag (black)


Rolls size 0,75 x 10 m / 11 m²
Colours black, grey, red, brown, green, grey-white, red-black, brown-black, green-black, copper, midnight black
Packages / pallet 25 pcs
Weight / package 30 - 33 kg
Weight / pallet 775 - 845 kg