Breathable roofing underlayment
  • Breathable roofing underlayment Manufacturers, Breathable roofing underlayment Factory, Supply Breathable roofing underlayment
  • Breathable roofing underlayment Manufacturers, Breathable roofing underlayment Factory, Supply Breathable roofing underlayment
  • Breathable roofing underlayment Manufacturers, Breathable roofing underlayment Factory, Supply Breathable roofing underlayment
  • Breathable roofing underlayment Manufacturers, Breathable roofing underlayment Factory, Supply Breathable roofing underlayment
  • Breathable roofing underlayment Manufacturers, Breathable roofing underlayment Factory, Supply Breathable roofing underlayment

Breathable roofing underlayment

Brand JDHT

Product origin China

Delivery time 3-15 days

Supply capacity Butyl rubber waterproof membrane 5 million ㎡

Model BG-G

Features
1. Good durability;
2. Good air tightness, butyl rubber is the best air-tight, water-tight synthetic rubber, steam transmission rate is 1/200 compare with nature rubber;
3. Excellent bonding properties, applicable with various substrates, including concrete, metal, tile, plastic, glass, etc. surfaces. May form micro-full-binding with substrates, minimize the impact even if waterproof system partially damaged, lower further maintenance cost;
4. Applicable at wide temperature range, no slippage at 100℃, non-cracking at -40℃;
5. Raining season construction, wet substrates applicable, bondable in water, waterproof quality assured even working with water;
6. Low temperature construction, applicable at -20℃ without heating.

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Breathable roofing underlayment

Breathable roofing underlayment(BG-G)


  • Breathable synthetic roof underlayment(BG-G) build-up

    breathable roofing underlayment


  • Description

JDHT BG-G breathable underlayment for metal roofing air barrier, with polymer membrane as cover, 

butyl rubber as adhesive layer, also covered with isolation materials. 

BG-G self adhesive bitumen membrane is applicable with self-adhesive method.  


  • Technical Data

No.ItemSpecification
III
1Tensile strengthPulling strength, N/50mm, ≥300
Elongation at break, %, 20
2Heat resistance90℃100
2h, no flowing and dripping, sliding ≤2mm
3Flexibility at low temperature-30-40
No cracks
4Channeling0.6MPa, no channeling
5Peeling strength between membranes, N/mm, Room temperature2.00.8
-10 temperature treatment2.00.8
Thermal treatment1.00.8
6Peeling strength between membrane and Alu, N/mm, Room temperature2.01.5
-10 temperature treatment1.0
Thermal treatment1.0


  • Waterproof membrane for external walls main uses

- Insulated roof at the area of latitude 40° and above, meantime indoor air humidity exceed 75%;

- Other areas insulated roof with indoor air humidity exceed 80%;

- Thermostatic roofs;

- Other available projects


  • Bathroom waterproofing membrane size

- 0.3mm(Thickness)* 1m(Width)* 20m(Length)

- 0.5mm*1m*20m

- 0.8mm*1m*20m

- OEM


  • Color

- White,Black,Blue,OEM


      

  • Our Factory & Warehouse


     breathable underlayment for metal roofing


  • Our Certification

    breathable synthetic roof underlayment



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