Polytex® 145AG
Polytex® 145AG is a water-resistant breathable non-woven membrane provided with an aluminium facing. The aluminium side has extremely low emissivity resulting in a 97% reflection of infrared radiation. Polytex® 145AG is thus a fully waterproof spunbond membrane that, in addition to providing breathable protection for the structure, also significantly improves the insulation value.
Gerelateerde producten
-
VASTR® Total Tape
VASTR® Total tape is a single-sided adhesive tape and is universally applicable for membranes and air sealing of the building envelope.
-
VASTR® Aluminium tape
VASTR® Aluminium tape is a reinforced adhesive tape for air, water and vapour tight sealing of overlap seams and repairing damage.
-
VASTR® Butyl tape
VASTR® Butyl tape is a double-sided adhesive sealing tape for adhering membranes to various substrates.
Polytex® 145AG
Polytex® 145AG is a water-resistant breathable non-woven membrane provided with an aluminium facing. The aluminium side has extremely low emissivity resulting in a 97% reflection of infrared radiation. Polytex® 145AG is thus a fully waterproof spunbond membrane that, in addition to providing breathable protection for the structure, also significantly improves the insulation value.
1.50 x 50 m Article No. 8215015000
3.00 x 50 m Article No. 8215030000
Applications
Polytex® 145AG is used as a waterproof breathable membrane in facade and roof constructions. The membrane is applied to the cold side of the structure. Polytex® 145AG can be applied behind masonry as well as closed cladding.
The reflection layer works optimally in weakly ventilated facades since a ventilation cavity is always present here. Polytex® 145AG may be applied directly against hard or soft substrates. When Polytex® 145AG is applied to the roof, the reflection only contributes to a reduction in heating in the summer.
Since the space under roofing is highly ventilated, a higher insulation value should not be used here. Polytex® 145AG protects the structure and provides optimal insulation and moisture management.
Installation
Polytex® 145AG may be processed directly against hard and soft substrates.
Process the printing on the membrane legibly toward the cladding. Maintain a cavity of 20 to 40 mm for optimal thermal resistance. Apply Polytex® 145 AG in a shingle fashion. For overlaps, maintain a minimum of 150, and a maximum of 200mm overlap. Apply Polytex® 145AG to the structure using staples. Tape off staples and overlaps with VASTR® Aluminium tape basic. Seal penetrations and connections wind and watertight with VASTR® Butyl tape and/or Tyvek® FlexWrap tape.
For optimal water resistance and durability, VASTR® Butyl tape should be applied under the batten.
Advantages
Limits space heating in the summer period
Improving insulation value
Makes optimum use of existing cavity in facade
Dual function waterproofing vapor permeable and insulating
High tensile and tear resistance
Specifications
Weight 143 gr /m²
Fire class E
Water tightness W1
Water vapour resistance Sd <0.18 m
Water vapour transmission 120 g / m² / day
Tensile strength machine direction initially 260N / 50 mm
Tensile strength cross direction initially 160N / 50 mm
Elongation machine direction of fracture 80 %.
Elongation cross direction 100 % at break
Nail tear resistance machine direction initial length 130N
Nail tear resistance cross direction initially 160N
Temperature resistance -40°C/80°C
Open construction phase 1 month
Emmisivity (after aging) 0.03
