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WÜTOP DB 2 vapour retarder
Vapour-permeable, moisture-regulating, airtight and easy-to-install vapour retarder for interior renovations and attic conversions. To be used in conjunction with vapour-permeable underlay membranes and roof protection films
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Variants
- Embedded mesh for durability and tear resistance
- Prevents heat loss caused by unnecessary airflow
- Prevents moisture penetration of internal heat insulation and, therefore, the impairment of the insulating effect
- Wütop DB 2 in combination with water vapour-permeable roofing underlay from the Wütop series provides year-round breathability for insulation and frame structure, creating a healthy indoor climate
This product is classified according to EMICODE® (EC1 Plus). EMICODE® is an independent low-emission labelling system based on established test and limit values.
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.
Wütop vapour retarder DB40/DB 2/vapour barrier DS 100
Wütop vapour retarder DB40/DB 2/vapour barrier DS 100
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.
Installation instructions for between-rafter insulation
- Fix WÜTOP DB 2 to the "warm" side of the heat insulation using a stapler (hammer tacker or manual staple gun) and secure with battens
- The smooth side always faces toward the installer
- Vertical overlaps must always lie on a rafter
- Make sure there is sufficient coverage: Overlap at the top: at least 10 cm (overlap strip), overlap at the sides: approx. 20 cm
- All overlaps and stapled points must be given an airtight seal using suitable adhesive tape (Eurasol)
- For airtight attachment to masonry, the membrane is bonded using WÜTOP film adhesive and secured with a clamping batten, if necessary
- Take care not to damage the membrane during installation
- Before the interior cladding is attached (gypsum plasterboard, wood panelling etc.), check again that the vapour retarder has been correctly installed and correct if necessary
Installation instructions for over-rafter insulation
- WÜTOP DB 2 is ideal for use as a vapour retarder for over-rafter insulation
- Installation: Same procedure as for between-rafter insulation
- Please note: Exposure to weather for max. 6 weeks
Installation instructions for renovation of old buildings
- Pointed objects (e.g. nails) that protrude from the interior cladding into the rafter area must be removed to avoid damaging the vapour retarder
- WÜTOP DB 2 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)
- Recommendation: Secure WÜTOP DB 2 to the rafters using clamping battens
- Bond joints at the eaves (eave beams/masonry) using Wütop film adhesive. Additional mechanical fixing with clamping battens is recommended
- WÜTOP DB 2 vapour retarder must not be used to renovate interiors in which the humidity is continually over 60 %
- According to DIN 4108 part 3, structures that do not conform to standard construction methods must be verified with a calculation (dew point calculation). Therefore, the use of WÜTOP DB 2 for renovation work must be agreed upon beforehand by Würth Application Support
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