Waterproof Breathable Membrane
Waterproof Breathable Membrane Manufacturer
KOSITE is an Indonesia waterproof breathable membrane manufacturer for vapour-permeable roof, wall, housewrap and facade building-envelope applications.
MaterialBreathable waterproof membrane roll
GSM / Basis Weight80-260 gsm, selected by wall or roof application
Roll WidthCommon 1.0-3.2 m; custom width by order
Roll Length50 m, 100 m or custom roll length
ColorWhite, grey, blue, black or OEM color
ApplicationsRoofing, wall, housewrap and facade systems
SupplyRoll goods with project and OEM support
OptionsGSM, roll width, color, printing and packing
Where Waterproof Breathable Membrane Fits
- Provides a water-resistive layer for wall, roof, housewrap and facade assemblies where controlled vapor movement is required.
- Helps the building envelope resist exterior liquid water while retaining a drying path appropriate to the selected wall or roof design.
- Available as roll goods for project supply, OEM branding and private-label packaging after the specification is confirmed.
How Waterproof Breathable Membrane Is Selected
- A waterproof breathable membrane is not selected by GSM alone. Its value comes from balancing liquid-water resistance with the vapor behavior needed by the complete assembly.
- Roofing, external walls, housewrap and facade applications have different exposure, strength, drainage and vapor-control requirements.
- Compare water resistance, vapor permeance, tensile and tear strength, construction exposure, roll handling and accessory compatibility before selecting a roll construction.
- Installation details including laps, fasteners, flashing, penetrations and drainage must be reviewed as one system.
Waterproof Breathable Membrane Specification Checklist
- Identify the wall, roof, housewrap or facade application before comparing GSM or color.
- Confirm the project requirement for water resistance, vapor permeance, tensile strength, tear strength and construction exposure.
- Set roll width, roll length, color, printing, labels and packing before quotation or sample preparation.
- Review laps, fasteners, flashing, tape and drainage as a continuous installation system.
- Confirm the applicable data sheet, test references and destination-market requirements for the selected product.
- Approve a sample and verify accessory compatibility before bulk production.
Related Technical Resources
Use these application notes with the selected product data sheet and project specification.
Water Resistance + Vapor Permeability
Why durable wall systems need a balanced moisture-management layer.
Five Technical Factors for Housewrap and WRB Performance
A practical framework for comparing WRB and housewrap performance.
How Waterproof Breathable Membranes Work in Walls and Roofs
The principle behind liquid-water protection and controlled vapor diffusion.
