water vapour barrier

Normal packing are:
Roll size: 1.5m * 50m, 75m2/roll, 2rolls/ctn with 36*18*152cm, we also could make big rolls (~1200m2- 1500m2) so that can save more shipping cost.
Material: two layers of non-woven fabrics and one layer of microporous polymeric membrane in the middle

Specifications

1. Fireproofing class B1
2. Vapor permeability >= 2500g/m2 . 24h
3. Range of working temperatures from minus40 to 80

Breathable House Wrap Membrane Roofing Waterproofing Membrane

 

Nelumbo  breathable membrane, which has good water resistance and vapor breathability, e.g., prevents moisture from entering the buildings, while permits water vapor exit the building. And the breathable membrane can thus improve building durability by protecting wall sheathing and framing from moisture.

 

One key point :   Nelumbo Breathable Waterproofing Membrane for Timber Frame  helps reduce homeowner energy bill because homes stay cool in the summer and warm in the winter and dry all year round.

 

How does Nelumbo  Breathable House Wrap Membrane Roofing Waterproofing Membrane works?

 

Nelumbo breathable membrane is made by two layers of non-woven fabrics and one layer of microporous polymeric membrane in the middle.  

 

1. It has superior air resistance that helps to protect insulation from drafts, reducing energy costs. 

 

2. It provides water resistance that  helps to prevent water from entering walls, avoiding costly damage.

 

3. It allows moisture vapor to escape while protecting against air and bulk water instrusion.

 

4. It has excellent tear strength and allows 120days of UV exposure. 

 

Breathable Pitched Roofing Underlay Membrane  data:

 

Roll size: 1.5*50m/roll

Material: 3 layers : 2 layers PP non-woven fabric + 1 layer PE breathable film in the middle

Technical data of  Breathable House Wrap Membrane Roofing Waterproofing Membrane comparation chart below:

Item		Specific
Weight (g/m2)		100	130	170
Water Vapour Transmission (g/m2.24h)		2500-3500	2500-3500	2500-3500
Resistance to Water Penetration (mm)		1500-3000	1500-3000	1500-3000
Tensile Strength (N/50mm)	CD	>140	>150	>170
	MD	>160	>170	>200
Low Temperature Flexibility (°C)		-40°C	-40°C	-40°C
UV Exposure (Months)		4	4	4

 

 

Nelumbo  Roofing Membrane Breathable Membrane parameter

 With high tensile strength,big broken elongation, high tear strengt, heat resistance, cold tolerance, corrosion resistance,  ageing-resistantand is available to operate  under cold environment.

 

Application of  Roofing Membrane Breathable Membrane 

 Nelumbo waterproof breathable membrance are mainly used for the wall and roofing.