Protect A1 Impermeable Underlay

£41.20 Incl. VAT
£34.33 Ex. VAT
Estimated delivery: 2-3 working days


Protect A1® is a third generation roofing underlay which has been developed specifically to overcome the disadvantages of traditional Type 1F felts and second-generation plastic sheet materials. 145gsm high performance, impermeable HR roofing underlay.  Protect A1 can be installed without the need to seal the laps, ensuring fortuitous ventilation. Unrestricted wind uplift resistance (Zones 1-5) with 345mm batten gauge.  Independently certified by BM TRADA for added reassurance.  Excellent nail tear strength and tensile strength.  Completely water and air tight, with hydrostatic head of water resistance of >2.0m.  Produced in the UK.

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