Kerabit 7

Kerabit 7 -triangular batten roofing looks good on all pitched roofs. This product is equally well suited for modern houses as for the standard detached houses of the 1950s, typical of the post-war years.

Colour options


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
3,4 mm
Nominal weight
4000 - 4400 g/m²
Weight of the supportive layer
170 g/m² (+/- 10 g/m²)
Surface type

slate granulates /slag

Rolls size
0,7 x 10 m / 7 m²
Surface bitumen
SBS modified bitumen
black and red
Packages / pallet
Weight / package
28 kg (red), 30,8 kg (black)
Weight / pallet
697 kg (red), 765 kg (black)

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 7 is used for triangular batten roof. The inclination of the roof must between 1:2 and 1:3.

  • A substrate of Kerabit OSB roof boards, of other building board suited for the purpose, or of tongue-and-groove roof boards
  • Kerabit Triangular Batten Membrane
  • Kerabit Eave Flashing for lower eaves and Kerabit Kerabit Verge Flashing for gable eaves; colour options are black and dark grey
  • 50 x 50 mm diagonally slit triangular battens (also for gable eaves and around the chimney)
  • Kerabit Sealing Adhesive for sealing the vertical seams
  • Cut Kerabit Valley Membrane for chimney upturns and for a possible valley
  • Nails for securing the triangular battens and eaves flashings to the understructure
  • Roofing nails for securing the triangular batten roofing to the understructure and the triangular batten membrane to the battens