... , roof breather, house wrap, diffusion 3 layers laminited Breathable Membrane pitched roof underlay, vapor permeable, waterproof, roof breather, house wrap, diffusion ... use in both vented and non-vented cold and warm pitched roofs.Breathable Membrane is especially suitable for use in supported ... penetration----EN13859-1 EN1928-2000W1, 3 layers laminited Breathable Membrane pitched roof underlay