K4E Capping Sheet

K4E is a high performance, torch-applied SBS elastomeric bitumen capping sheet. The product features a spunbond polyester reinforcement to allow the finished product to cope with structural movement without fracture, and a mineral finish to provide protection against UV degradation. The product is available in a choice of three colours – Charcoal grey, Autumn brown & Grey slate.

Technical Data

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DoP for Charcoal grey » 
DoP for Autumn brown »

Roll size 1 x 7.5m
Fixing method Torch bonded to the specified underlayer
Surface finish Top - Slate mineral
Bottom - Thermofusible polyethylene
Thickness 4.2mm
Weight 5Kg/m² - Autumn brown + Grey slate
5.5Kg/m² - Charcoal grey
Reinforcement 250g/m² Spunbond recycled polyester
Tensile strength (EN 12311-1) Length ≥ 800N/50mm
Diagonal ≥ 800N/50mm
Cold bending (EN 1109) -30°C
Heat stability (EN 1110) +110°C
Elongation (EN 12311-1) Length ≥ 40%
Diagonal ≥ 40%
Colour choice Charcoal grey
Autumn brown
Grey slate
This cap sheet is to be used within Bauderflex bitumen roofing system.

The key features of the Bauderflex system include: Bauder manufactures all of its membranes to current specifications and tolerances, ensuring full compatibility of the components used within the system build-up.