Kerabit 3000 U

Kerabit 3000 U is an underlay membrane in multi-layer membrane system, glued with molten bitumen.

The carrier consists of polyester. Sand granules on the top both side of the membrane.


Manufacturer / Manufactured for
Nordic Waterproofing Oy, Lohja plant
Country of origin
Conformity marking
CE mark
Reaction to fire
Manufacturer’s fire testing certificate
Fire Classification


Manufacturer’s declaration of conformity
Kerabit modified bitumen roofing materials
Quality control
Quality control agreement between the Plant and Eurofins Expert Services Oy
Nominal thickness
approx. 2,5 mm
Nominal weight
3000 g/m²
Weight of the supportive layer
170 g/m² (+/- 10 g/m²)
Supportive layer
Rolls size
1 x 10 m / 10 m²
Packages / pallet
31 rolls
Weight / package
30 kg
Weight / pallet
955 kg

Handling and storage 
Modified bitumen membranes are to be stored on pallets in a dry and cool place. Use a plastic hood or tarpaulin for protection. When the outdoor temperature exceeds +40°C, the rolls must be protected from sunlight.

The product is used as underlay or intermediate layer of multi-layer roofing and water pressure insulation.