The Easy-Trim Grafter breather membrane is a vapour permeable and air tight breather membrane, designed for use in both fully supported and unsupported installations in tiled or slate pitch roofs and walls. Grafter 99gsm A 3 Layer Spun Bond Based Membrane That Provides Excellent Performance Whilst Being Lightweight And Flexible. Suitable For Warm And Cold Roof Application. Grafter breather membrane features high vapour permeability, superior water resistance, and brilliant tensile tear strength. Suitable for applications on warm, cold and hybrid roofs, together with installations on Scottish sarking boards, and equally suitable for installations in timber and steel frame constructions. Product Details: Brand: Easy Trim Dimensions: Length: 50 m Width: 1000 mm Weight: 5 kg Material: Polypropylene Colour: Grey Type: Breather Membrane Range Description: Roofing MPN: Easytrimgraft1 Barcode: 700900727426 Key Features: BBA certified for warm and cold roof applications BBA 10/4753. Conforms to BS5534.2014 Annex A. UV stable for 3 months. Vapour Permeable. Type LR Underlay to BS5250.