Specification

Description	Specification	Width	Length	Thickness
Roof underlay	500g/m2PP—PP	1000mm	30m	0.8mm
	600g/m2S—PP	1000mm	25m	1.0mm
	1500g/m2S—S	1000mm	20m	1.3mm
Roof underlay with adhesive band	500g/m2PP—PP	1000mm	30m	0.8mm
	600g/m2S—PP	1000mm	25m	1.0mm
	1500g/m2S—S	1000mm	20m	1.3mm

Technical capacity index

JianDa brand waterproof breathable membrane
Test standard	EN12310; EN12311; EN1849; ASTM D-97
Mass	400g/m2 ----500g/m2
Elongation	300N/5cm----400N/5cm
Tensile	240N/5cm----320N/5cm
Resistance to tearing; >	23%
Water tightness	0.2MP   24 hours
Heat resistance	85°c      24hours
Cold flexibility	-40°c     24hours no cracks or fractures
Dimension	make size according to client requirement

Description

Jianda brand waterproof and vapor permeable membrane is polymer modified asphalt based, with surface of high strength polypropylene fiber. Back side coated with self adhesive glue or antiskid sand. Made by special process. With excellent waterproof performance and breathable properties.

Usage

 It is used as the underlayment of cement tile, painted pottery watts and asphalt shingle. Also suitable for all kinds of architectural roofing, walls, underground waterproof and damp proof project.

 Featurers

 

• with adhesive tape on the overlap for the sealing of junction,convention for application.
• Excellent weather resistance, corrosion resistance, anti-aging, antioxidant.
• Excellent waterproofing performance and encase nail holes.
• Good permeability, can be in damp base surface construction, make the maintenance structure internal water vapor rapidly eduction, avoid effectively mould and condensing formation
• Excellent tensile strength and elongation.
• large Surface friction, grass-roots closely.
  no smell,no taste,accord with environmental protection requirements.

  With double black polypropylene-called YEP

  one side is white polypropylene and sand-called YAP

Testing Laboratory

 

 

Certifications

 

 

Packaging & Shipping

 Packaging:packed in rolls with pallet

Company Information