Waterproof,Vapour permeable,UV resistance,High performance breathable underlay for pitched roof

DESCRIPTION	STANDARD	UNIT	INDEX
Roll Width	EN-1848-2	cm	150
Roll Length		m	50
Roll Surface		M2	75
Weight	EN-1849-2	gr/sq.m	135
Roll weight		kg	10.9
Tensile Trength	EN-12311-2	N/5cm MD/TD	250/175
Water vapour Transmission	EN 1931	gr/m2/24hrs	3000
Column of Water	EN 20811	cm	Min 250
Use Temperatures	EN 1876-2	°C	-40, +100
UV Resistance			3 Month
Fire rating	EN13501-1		E
Color			Black/white

1.Breathable membrane Characteristics

A.Excellent Performance at water resistance

B.Particular function of vapour permeability, so called Breathable membrane

C.Good performance at UV resistance

D.Tear resistance, wear resistance, good extensibility.

E.Light and thin, antiskid, with good low temperature flexibility, suitable for construction in different condition.

F.The 100% returnable polymer materials, fit the ecologist requirements.

­

2.Functions of breathable membrane

A.Improve watertightness of building, prevent the construction from the invasion of wind and rain, protecting the structural materials and equipments inside roof and wall.

B.Improve the energy saving and insulation effect. Due to the unique water proof and vapour permeable performance, when forming the protection to the insulating layer, it can also effectively avoid the negative influence from the temperature difference between interior and exterior. hence, it increasing the effects of insulation and energy saving as well as providing the continuously energy saving

C. Shorten the construction period. Thanks to the good water resistant performance, interior construction and exterior can be performed at the same time so that shorten the construction period, reduce the construction cost.

D. Improve the residential environment. Because of the special breathable function, the interior vapour can natural exhaust, will effectively avoid mould and condensation, keep dry,  permeate and comfortable indoor, improve the residential environment.

­

3. Application of breathable membrane

Mainly used as underlay for pitched roof and enclosure protection for insulating layer of walls.

A. Roofing application

B. Wall application

breathable roofing membrane