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KINGWAY breathable membranes have excellent performance at water resistance, vapor permeability and UV resistant, which mainly used in construction as roof underlay and house wrap.
KINGWAY breathable membranes are 3 layers thermal lamination:
Breathable membrane allows vapour to travel through it easier, while non-breathable doesn’t. In principle, the lower the water vapour resistance, the greater the membrane’s ability to lower the risk of condensation.
When non-breathable membrane is used below the slates or tiles, very little moisture makes its way into the batten space above. Roof breather membrane on the other hand allows far greater moisture transfer- making it crucial that there is adequate air movement above.
Non-breathable membrane can often be confused with a vapour control layer, but shouldn’t be. Vapour control layers are positioned on the warm side of the insulation to prevent large volumes of water vapour entering the roof structure from the interior, while also helping reduce heat loss through the roof. Non-breathable membrane is located on the cold side of the insulation.
1. Excellent performance at water resistance
2. Particular function of water vapor permeability
3. Good performance at UV resistant for 4 months
4. They are much lighter than bitumen felts, suitable for construction in different condition
5.They have excellent tear and nail strength, with good low temperature flexibility
6. 100% Virgin material
7. simple installation in new building, re-roofing and refurbishment situations
Surface mass density | 100 g/m² | Breathable roofing membrane for pitched roofing and wall | ||
Roll size | 1.5m×50m | |||
Vapor permeability | ≥2250 g/m²/24h | |||
Sd value | 0.02 m (-0.005/+0.015) | |||
Water tightness | class W1 | |||
Tensile strength MD/CD | 200/126N/50 mm (+/-20%) | |||
Tearing strength MD/CD | 110/100 N (+/-20%) | |||
Resistance to UV rays | 4 months | |||
Reaction to fire | E | |||
Loading quantity | 20’GP | 40’GP | 40’HQ | |
1.Mainly used as roof underlay and house wrap protection for insulating walls.
Nantong Kingway Complex Material CO., Ltd (Nantong Hekway Building Material CO., Ltd) is a leading professional manufacturer in China, which locates in Haian State-grade Development Zone, Nantong City, Jiangsu Province, nearby Shanghai.
We have advanced production lines with the technology from Italy and Germany, which are applied to nonwoven products, film lamination, roofing materials, disposable medical products, packaging materials and so on.
Main products:
Nonwoven fabric , SMS, SMMS and manufactured products
Film or foil laminated products
Roofing membrane, flooring underlay
PE woven fabric, PE tarpaulin, vapor barrier