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Masons FR1: Absorbent Fire Retardant Building Wrap

FR1 Wrap is a non-woven fire retardant, water resistant, breathable, synthetic wall underlay for use under direct fixed and non-direct fixed wall cladding on timber framed and steel framed buildings. The product is manufactured from high quality synthetic spun bonded material with high UV qualities and anti-fungal properties. It is also compatible with absorbent and non-absorbent cladding.

CodeMark Certified

FR1 Building Wrap has been CodeMark certified to ensure it meets code compliance with NZBC Clause B2.3.1 (a), not less than 50 years for building wraps used where the cladding durability requirement or expected serviceable life is not less than 50 years.

Fire Retardant

FR1 Building Wrap is fire retardant in accordance with AS1530 Part 2 Flammability and has been appraised with a fire rating of 1. Fire ratings range from 5 to 0, the lower the number the better the fire rating.


FR1 Building Wrap is a 100gsm non-woven breathable composite building wrap. FR1 is the strongest of any competitor's absorbent wrap on the market, suitable for buildings situated in NZS 3604 Wind Zones up to and including Extra High.

Other Advantages

FR1 Building Wrap is suitable for use with all cladding systems, to be used as a non-rigid backing for stucco plaster or as an air barrier on walls that are not lined. Masons FR1 wrap is available in 2.74m and 1.37m roll heights in 50m² and 100m² rolls.

View more information on Masons, including contact details.
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