Housewrap and Water-Resistive Barrier
Wall Membrane and Housewrap Manufacturer
KOSITE is an Indonesia housewrap manufacturer and building wrap supplier producing vapor permeable housewrap and exterior wall WRB rolls for commercial building wrap, OEM, private-label and export programs.
UseExterior wall and housewrap applications
GSM / Basis Weight80-160 gsm for common wall WRB; higher GSM by project
Roll WidthCommon 1.0-3.2 m; custom width by order
Roll Length50 m, 100 m or custom roll length
ColorWhite, grey, blue or OEM printed option
FunctionWater resistance with vapor permeability
SupplyRoll goods with OEM label and packing
SupportSamples, data sheet and project quotation
Where Wall WRB and Housewrap Fit
- Designed for exterior walls where the system needs a continuous water-resistive layer behind cladding or siding.
- Helps manage exterior liquid water while supporting outward drying when the wall assembly uses a vapour-permeable design.
- Roll weight, width, color, printing and export packing can be matched to a distributor or private-label program.
How to Select Housewrap and WRB
- Start with the wall build-up: cladding type, sheathing, drainage cavity, insulation position and expected construction exposure determine the suitable membrane construction.
- Compare water resistance, vapor permeance, tensile and tear performance together. GSM alone does not define installed wall performance.
- A reflective foil layer and a vapour-permeable WRB are different constructions. Confirm whether the project needs outward drying or vapor control before comparing foil products.
- The membrane must stay continuous at laps, corners, windows, penetrations and base details with compatible tape and flashing.
Wall WRB Specification Checklist
- Confirm the wall build-up, cladding type, drainage cavity and the expected construction-exposure period.
- Define the water-resistance, vapor-permeance, tensile, tear and exposure data required by the project specification.
- Confirm whether the selected membrane is only a WRB or is also part of a tested air-control detail.
- Set GSM, roll width, roll length, color, printing, labels and export packing before quotation.
- Review the applicable data sheet, test references and destination-market requirements for the selected construction.
- Approve a sample and verify tape, flashing, sealant and substrate compatibility before bulk production or installation.
Related Technical Resources
Use these application notes with the selected product data sheet and project specification.
Five Technical Factors for Housewrap and WRB Performance
A buyer-focused check of water resistance, vapor permeance, detailing and mechanical durability.
WRB Installation Guide for Water-Managed Wall Systems
Window flashing, drainage-plane continuity and practical wall-installation guidance.
How Waterproof Breathable Membranes Work in Walls and Roofs
A clear explanation of liquid-water resistance and vapor diffusion.