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WÜTOP Thermo Vario SD moisture-variable vapour retarder
The moisture-variable vapour retarder with the benefits of polyester technology
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WÜTOP Thermo Vario SD is a vapour-permeable, moisture-variable and airtight vapour retarder for the renovation of old buildings, interior finishing and loft conversions. When combined with WÜTOP non-breathable and breathable membranes and EURASOL adhesive tapes, it can be used to create modern airtight and windproof structures.
Safety
Polyester is an extremely weather-resistant material, provides a high degree of protection against UV radiation and is temperature-resistant up to 100 °C.
Technology
Two-layer vapour retarder consisting of moisture-variable polyamide with stabilising polyester fleece.
Universal application
- Roofs, walls and floors
- Renovation of old buildings from the outside (sub and top processes)
- Damp new buildings (with adequate ventilation)
Saves time and money
- Installation grid for easy and quick installation (10 x 10 cm)
- Very robust and tear-resistant due to polyester fleece backing
Our products featuring the EMICODE label are low in emissions/harmful substances. The EMICODE label classification system certifies the environmental and health compatibility of construction products, based on strict emission requirements from recognised institutes.
DIN EN 13984
EMICODE EC1plus: Very low emissions: The EMICODE classification system distinguishes the environmental and health compatibility of construction products. The lowest-emission products bear the EC1plus mark.
Please refer to the current ZVDH [German Central Association of the Roofing Trade] directives and instructions for laying this product.
Installation instructions for between-rafter insulation
- Fix WÜTOP Thermo Vario SD to the warm side of the heat insulation using a stapler (hammer tacker art. no. 0714854, 0714811 or hand-held stapler art. no. 0714834) and secure with battens.
- The smooth side always faces toward the installer.
- Vertical overlaps must always lie on a rafter.
- Ensure sufficient overlap: Horizontal overlap: at least 10 cm (overlap strip), vertical overlap: approx. 20 cm.
- Airtight bonding with a suitable adhesive tape (art. no. 0992700050) is recommended for all overlaps and stapled points.
- For airtight attachment to masonry, the membrane is bonded using WÜTOP film adhesive (art. no. 0893700100, 0893700110) and secured with a clamping batten, if necessary.
- Take care not to damage the membrane during installation.
- Before the interior cladding (gypsum plasterboard, wood panelling etc.) is attached, check again that the vapour retarder has been correctly installed and remedy if necessary.
Installation instructions for over-rafter insulation
- WÜTOP Thermo Vario SD is ideal for use as a vapour retarder for over-rafter insulation.
- Installation: Same procedure as for between-rafter insulation.
- Please keep in mind: Exposure to weather for max. 3 months.
Installation instructions for renovation of old buildings
- Sharp objects (e.g. nails) that protrude from the interior cladding into the rafter area must be removed to avoid damaging the vapour retarder.
- WÜTOP Thermo Vario SD is laid over the rafters from the outside with the fleece facing the room interior. Install with the smooth side facing outwards.
- All overlaps and openings must be given an airtight seal using suitable adhesive tape (Eurasol, art. no. 0992700050).
- Recommendations: Secure WÜTOP Thermo Vario SD to the rafters using clamping battens.
- Bond joints at the eaves (eave beams/masonry) using WÜTOP film adhesive (art. no. 08937001). Additional mechanical fixing with clamping battens is recommended.
Select RAL-colour code
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