Tyvek® Metal
Tyvek® Metal is a breathable cavity membrane that is installed under standing seam metal roofing. The membrane features a PP composite drainage structure that allows condensation that has formed under the roof made of stainless steel, copper or zinc to drain away over the Tyvek® layer. The membrane must be applied to panels of softwood lumber and is provided with an adhesive overlap tape.
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Tyvek® Metal
Tyvek® Metal is a breathable cavity membrane that is installed under standing seam metal roofing. The membrane features a PP composite drainage structure that allows condensation that has formed under the roof made of stainless steel, copper or zinc to drain away over the Tyvek® layer. The membrane must be applied to panels of softwood lumber and is provided with an adhesive overlap tape.
1.50 x 25 m Article No. 4435015025
Applications
Tyvek® Metal is used as a waterproof, extremely breathable layer on the cold side (usually the outside) of metal roof structures in new construction and renovation.
Installation
Tyvek® Metal is processed on planks of softwood where the membrane is applied horizontally and in a shingle fashion. Roll out Tyvek® Metal so that the self-adhesive adhesive strip is at the top, facing outward. Also fix this membrane first with staples. Then fold up part of the second membrane while removing the adhesive strip from the first membrane. Do this along the entire length of the roof and press the membrane firmly at the location of the adhesive strip. The maximum free span is 1200 mm. Process the black composite drainage structure towards the roofing.
Advantages
Completely waterproof
Proven quality for the life of the structure
Extremely vapor-permeable
UV stable for about 4 months
Cold and heat resistant
Light weight, ARBO friendly
Highly efficient condensate drain
Specifications
Weight 407 gr /m²
Fire class E
Water tightness W1
Water vapour resistance Sd 0.03m
Water vapour transmission 800 g / m² / day
Tensile strength machine direction 345N / 50 mm
Tensile strength cross direction 290N / 50 mm
Elongation machine direction at break 14%
Elongation cross direction at break 20%
Nail tear resistance machine direction initial length 175N
Nail tear resistance cross direction initially 175N
Temperature resistance -40°C / 100°C
Open construction phase 4 months
