Product information
wedi Vapor 85 is both a board type sealing system and a building board with structural vapour barrier properties. Thanks to the pre-integrated vapour membrane barrier applied in the factory it is perfect for challenging applications in areas with high levels of humidity.
wedi Vapor 85 is made from blue extruded polystyrene hard foam (XPS) which is reinforced with alkali-resistant fibreglass mesh and coated with polymer-modified mortar on both sides, as well as a vapour membrane barrier on one side providing an SD value of 92.
- For rooms with high levels of humidity
- For wall and floors
- Waterproofing, vapour barrier and thermal insulation
Energy efficient
Hygienic
Proven
Reliable
Simple
Technical Details
| Technical properties of wedi Vapor 85 | |
|---|---|
| Thickness | 12,5 mm |
| Vapour barrier (polyethylene foil with special fleece layer) | 0,51 mm |
| Water vapour diffusion equivalent air layer thickness Sd value | 92 m |
| Resistance to water vapour diffusion (μ) DIN EN 1931 (sheet material vapour barrier) | 170.000 |
| Water vapour diffusion flow resistance Z value (sheet material vapour barrier) | 555.64 GPa • m² • s/kg 1.54 • 109 m² • s/kg |
| Water vapour diffusion flow resistance (sheet material vapour barrier) | 4,065,287 s/m |
| Fire behaviour EN 13501, building material class | E |
| Adhesive tensile strength | 0.27 N/mm² |
| Linear coefficient of thermal expansion | 0.02 mm/mK |
| Technical properties of raw foam building board systems | |
|---|---|
| Long-term compressive strength (50 years) ≤ 2% compression EN 1606 | 0,08 N/mm² |
| Compressive resistance or compressive strength at 10% compression EN 826 | 0,25 N/mm² |
| Associated module of elasticity EN 826 | 10 – 18 N/mm² |
| Thermal conductivity EN 13164 | 0,036 W/mK |
| Tensile strength EN 1607 | 0,45 N/mm² |
| Shearing resistance EN 12090 | 0,2 N/² |
| Shear modulus EN 12090 | 7 N/² |
| Bulk density EN 1602 | 32 kg/m³ |
| Resistance to water vapour diffusion (μ) EN 12086 | 100 |
| Water absorption under long-term immersion EN 12087 | ≤ 1,5 Vol.-% |
| Capillary action | 0 |
| Linear coefficient of thermal expansion | 0,07 mm/mK |
| Temperature limits | -50°C / +75°C |
| Fire behaviour EN 13501 | E |
| Carbon dioxide propellant GWP value | 1 |
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Usage
wedi Vapor 85 is both a board type sealing system and a building board with constructional and vapour resistant properties which is specifically tested and approved for wall applications. It can be used on solid walls and stud frames, as well as on floors, in interior areas. Due to its special properties, it is versatile in its applications:
• Carrier element for laying tile, slab and natural stone floor coverings using the thin-bed method, and surface for plaster and other materials
• Vapour barrier
• Effective thermal insulation
• Compound seal with tile and slab coverings on wall surfaces
Information about fitting, implementation of the sealing details and surface requirements can be found in the “wedi Vapor 85 building board application guidelines”.