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Polyolefin barriers are made of plastic fibres that are woven into a fabric, sold in rolls and applied to the exterior of buildings as a 'house wrap'. The fabric is stapled to the exterior sheathing using cap-staples and tape at seams.

NOTE: Housewrap is also known as: WRB - water / weather resistant barrier

Important Considerations for Spun Polyolefin / WRB Installations:

• Pay special attention to manufacturers installation instructions, using proper fasteners and appropriate tapes and sealants.
• Broad coverage is possible with this material and a tight barrier may be easy to achieve with purposeful and careful installation.
• May act as part of 'rain screen' assembly with strapping and vented cladding.

• Be careful to protect the material from prolonged exposure to weather (wind and sun), to avoid damage and deterioration before cladding is installed.