Polytex® Original
Polytex® Original is a waterproof breathable membrane composed of two layers of polypropylene with the functional microporous membrane in between. Polytex® Original protects the structure from wind and rain while potentially allowing vapour to exit through the Polytex® Original. Polytex® Original is KOMO certified. The Polytex® Original Plus features an integrated adhesive strip that eliminates the need for a Tyvek® tape at the overlaps.
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VASTR® Non-woven Tape
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Polytex® Original
Polytex® Original is a waterproof breathable membrane composed of two layers of polypropylene with the functional microporous membrane in between. Polytex® Original protects the structure from wind and rain while potentially allowing vapour to exit through the Polytex® Original. Polytex® Original is KOMO certified. The Polytex® Original Plus features an integrated adhesive strip that eliminates the need for a Tyvek® tape at the overlaps.
1.50 x 25 m Article No. 8212515026
1.50 x 50 m Article No. 8212515000
3.00 x 50 m Article No. 8212530010
1.50 x 50 m Article No. 8212515002 (with integrated adhesive strip)
Applications
The Polytex® Original is used as a waterproof, breathable layer on the cold side of roof and facade structures in new construction and renovation. The Polytex® Original can be used in roofs and facades both directly on hard and soft substrates.
Installation
Apply the Polytex® Original in a shingle fashion where horizontal overlaps should be at least 150 mm. Staple and overlap seams with VASTR® non-woven tape. Polytex® Original is applied to the structure using stainless steel staples after which the battens are placed over the staples. VASTR® Nail Sealing Tape should be applied under the batten to ensure water tightness of screw hole connection. Always apply the Polytex® Original legibly from the outside. When used in conjunction with Façade cladding, a battend is installed over the staples on the batten. At the location of a corner, the membrane should be converted to the first following batten, where it will be fastened with staples and possibly a wooden slat. VASTR® butyl tape should be applied under the batten for optimal water resistance and durability.
Advantages
Waterproof/rainproof
Vapor-open
Windproof
High tensile strength and elongation at break
KOMO certified
Can be applied directly to board material and mineral wool
100% recyclable
Roof and facade
Specifications
Weight 130 gr / m²
Fire class E
Water tightness W1
Water vapour resistance Sd 0.03 m
Water vapour transmission 480 gr / m² / day
Tensile strength machine direction initially 300N / 50 mm
Tensile strength cross direction initially 200N / 50 mm
Elongation machine direction at break 70%.
Elongation cross direction at break 70%
Nail tear resistance machine direction initial length 160N
Nail tear resistance cross direction initially 190N
Temperature resistance -40°C / 80°C
Open construction phase 2 months
