Grafter Breathable Membrane 100gsm
Grafter lightweight breathable membrane is a hybrid roof underlay producing high vapour permeability and water resistance. Grafter membrane provides excellent performance whilst being lightweight and flexible. It is suitable for Warm and Cold roof application as a fully supported or unsupported underlay for tiled and slated roofs
- Breathable - Eliminates Roof Space Ventilation
- Easy-Trim cutting guide (Red).
- High tensile and high tear strength.
- Can be used for vertical wall construction as a wind barrier
- Weight: 100g/m²
- BBA Certificate No. 10/4753.
Installed with the red printed side uppermost and lapped to shed water out and down the slope, the vapour permeable Grafter lightweight breathable membrane can be installed without the need for ventilation provided that the roof construction remains air tight and convection free for the life of the structure. In cold non ventilated roofs NHBC section 7.2 prescribe 5mm continuous ridge ventilation. NHBC compliance may be achieved by using the Easy-trim dry ridge system.
Grafter breathable membrane is supplied in a 1m x 20m roll
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