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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
Permavent APEX has Sd value 0
If installed with an extractor fan
After 72 hours have passed and the diamond-hard protection has activated
soapy water or a diluted all-purpose cleaning solution
you should only use 120 grit to sand the surface
Cromar Vent 3 Classic Breathable Membrane - 1.5m x 50m Colour Permavent APEX has Sd valueThe Cromar Vent 3 Classic Breathable Membrane 1. 5m x 50m by Cromar is an outstanding secondary layer protection for your roof. This breathable membrane is fitted behind the first layer of defence, preventing any water that passes through from entering your roofing space, instead being redirected into the gutter. Triple layer membrane thats easy to use Flexible and lightweight Fantastic tensile and tear strength Durable and long lasting Suitable for
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