Breathable roofing

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$0.16 - $0.43 / Square Meter | 1000 Square Meter/Square Meters (Min. Order)
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Quick Details
Place of Origin:
Jiangsu, China
Brand Name:
Supply Ability
Supply Ability:
2000000 Square Meter/Square Meters per Month
Packaging & Delivery
waterproof breathable roof underlayment housewrap


Product Description

   Breathable membranes have excellent performance at water resistance, meanwhile with particular function of high vapor permeability, which mainly use used in construction as underlay on pitched roofs or walls.


    Bbreathable membranes are 3layers thermo-bonded: PP non-woven fabric of top and bottom layer for protection and reinforcement; Micro-porous PE film, between the two layers, is to form breathable membrane. They are polyolefin products that can easily be recycled and can even be categorized as a normal household waste.





1) Breathable membrane with excellent waterproofing properties.

2) High water vapor permeability.

3) Stable anti-UV & anti-aging performance.

4) 3-layers thermal laminated: PP+PE+PP.

5) Light weigth so easy handled.

6) Excellent tensile and tearing strength.

7) Good low temperature flexibility.

8) For both roof and wall application.

9) High quality with very competitively price.





100sm TDS


Surface mass density

100 g/m²

Upper white + lower white

Roll size

1.5m*50m or customized

Vapor permeability

≥2250 g/m²/24h

Sd value

0.02 m (-0.005/+0.015)

Water tightness

class W1

Tensile strength MD/CD

150/100N/50 mm (+/-20%)

Tearing strength MD/CD

70/80 N (+/-20%)

Resistance to UV rays

3 months

Reaction to fire

Class F

Loading quantity




By bulk (1.5*50)




With pallets (1.5*50m)




Jumbo rolls (1.5*3100m)








Roof application:

     Breathable membranes are commonly use as waterproof underlay beneath the roof covering, which impervious to any wind driven rain or snow that gets blown through the roof covering, even when in direct contact with timber rafters and insulation.

    Meanwhile as they are vapor permeable, allow the roof structure to breathe, so the moisture from leakage and condensation can escape, to avoid mold and rot of fiberglass or cellulose insulation, so won’t lose its R-value due to heat-conducting moisture.



Wall application:

    breathable membranes can use as house wrap, a wall underlay membrane which functions as a weather-resistant barrier, preventing rain from getting into the wall assembly meanwhile allowing water vapor to pass to the exterior.

    They may also act as windproof layer (Air barrier), reducing air leakage through the building envelope, ensuring insulation materials maintain their thermal efficiency by minimizing air infiltration


 breathable membranes contain special stabilization additives which extend their resistance to UV radiation to 3 months, so can also use as a temporary waterproof barrier during the construction process, but we recommend that the covering finish should be quickly applied.




Packaging & Shipping

Standard pallet packing



 About us 

      Nantong Kingway Complex Material CO.Ltd. Locates in Kanghua Road,Haian Nation-level development zone. Its owning area is 22000 square meters, dust free workshop 7000 square meters.

We have equipped the most advanced PP non-woven production line and composite production lines: extrusion lamination production line (2.2m),hot melt lamination production line(1.8m), calender bonded production (1.7m) with the technology from Italy and Germany ,printing production line ,cutting production line. We specialize in producing waterproof and breathe materials and heat insulation materials, pp non-woven fabirc , disposable medical products, packaging materials and so on.

Our products have been exported to Europe ,  Asia, USA, New Zealand, Australia and so on. Enterprises through ISO9001 quality assurance system certification and the product of our company passed the CE authentication.

We have always been adhering to the “pragmatic, pioneering and innovative, the pursuit of excellence” in the spirit of enterprise, adhere to “ equality, friendship and common development” business philosophy, with the principle of serve customers wholeheartedly, Kingway will make all efforts to establish “all-win” platform , so as to contribute to Sino environment affairs.

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