3 layers laminited Breathable Membrane pitched roof underlay

3 layers laminited Breathable Membrane pitched roof underlay, vapor permeable, waterproof, roof breather, house wrap, diffusion

3 layers laminited Breathable Membrane pitched roof underlay, vapor permeable, waterproof, roof breather, house wrap, diffusion, Waterproof, Vapour permeable, Lightweight, Strong, High performance breathable underlay.

Breathable Membrane is a high performance breathable (vapour permeable) underlay for use in both vented and non-vented cold and warm pitched roofs.

Breathable Membrane is especially suitable for use in supported warm roof specifications where the insulation is located along the rafter line.

Breathable Membrane is a thermally bonded UV stabilised laminate incorporating a vapour permeable film. The product resists penetration by liquid water yet allows the passage of water vapour.

Characteristics	Unit	Test method	MF160
Length	m	EN1848	50
Width	m	EN1848	1.5(-0.5%;+1.5%)
Mass per unit area	g/m2	EN1849	160g(± 10%)
Resistance to water penetration	----	EN1928-2000	W1
Water vapour transmission	g/m2/24h	EN1931	2250≥
Tensile strength MD/ CD	N/50mm	EN12311-1	230±15% / 170±15%
Resistance to tearing MD/CD	N	EN12310-1	100±15% / 90±15%
UV resistance	Month(s)	EN13859-1	3
Reaction to fire	----	EN13501-1:2002,EN11925-2	E
Properties alternation after artificial aging
Tensile strength MD/CD	%	EN13859-1  EN12311-1	-30%/-30%
Resistance to water penetration	----	EN13859-1  EN1928-2000	W1

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3 layers laminited Breathable Membrane pitched roof underlay