Kerabit 3000 UB

Kerabit 3000 UB is a modified bitumen underlay membrane with a polyester felt as a carrier. The top and bottom surfaces are coated with sand. The 100 mm wide adhesive sections are located on the top and bottom surfaces, on opposing sides.  


Manufacturer / Manufactured for
Nordic Waterproofing Oy/Lohja Plant
Country of origin
Conformity marking
Reaction to fire
Manifacturer´s declaration of the fire test
Fire Classification


Manufacturer’s declaration of conformity
Kerabit modified bitumen roofing
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
2,5 mm
Nominal weight
3000 g/m²
Weight of the supportive layer
170 g/m² (+/- 10 g/m²)
Supportive layer
reinforced polyester felt
Surface type

sand granules.

Rolls size
10 x 10 m / 10 m²
Packages / pallet
31 rolls
Weight / package
30 kg
Weight / pallet
955 kg


This product is used as an underlay for tile and metal roofs and also as a vapour-barrier. 

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.

  • Kerabit Sealing Adhesive for seaming gable seams