DuPont Tyvek Metal - 30m x 1.1m Roll Description This underlay is a vapour open drainage membrane with integral adhesive lap allowing eventual condensation beneath Stainless Steel, Copper and Zinc roofs to drain away. It is designed for use beneath standing seam metal s... Read More
DuPont Tyvek Metal - 30m x 1.1m Roll
Description
This underlay is a vapour open drainage membrane with integral adhesive lap allowing eventual condensation beneath Stainless Steel, Copper and Zinc roofs to drain away.
It is designed for use beneath standing seam metal sheet roofs over timber boarding and even more important over softwood boarding.
Features
• With integrated tape.
• Water-resistant.
• Airtight.
• Vapour-permeable.
• Allows condensation beneath stainless steel, aluminium, copper and zinc roofs to drain away.
• Should be installed over 150 mm wide timber boarding with 2 mm gaps between.
• For use as drainage membrane beneath standing seam metal sheets roofs over timber boarding.
Properties
Composition - Composite of HighDensity Polyethylene, Polypropylene nonwoven and open mesh spacer.
Roll size - 1.1m x 30m.
Roll weight - 11.5kg.
Mass per unit area - 350 gr/m2.
UV exposure - 4 months.
Product / Functional layer thickness - 7.40 / 0.22mm.
Water vapour transmission (Sd) - 0.03m.
CE marking - Yes.
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