VARA PLUS - Smart Vapour Control Layer - Moisture Variable Vapour Control Layer
Verified by manufacturer 1 month ago
EPD
Certificate type
Internal airtight vapour control layer with smart variable moisture resistance. Hygrovariable technology. Suitable for wall, ceiling floor and roof applications. UKCA approved. CE approved.
Application
Application
VARA PLUS is an smart vapour control layer designed for internal use on the warm side of insulation on wall, ceiling, roof and floor applications, controlling and limiting sources of interstitial condensation.
Suitable for:
- Timber frame and masonry construction.
- Roof, wall, floor and ceiling applications.
- Externally vapour open and vapour closed structures
- All insulation types.
- All climate zones.
- Residential and commercial buildings.
Description
VARA PLUS is a smart humidity variable airtight vapour control layer with an optimum permeability range. Advanced Hygrovariable Technology allows incredible summer drying conditions, but can equally protect the construction in winter.
Features and benefits:
- Innovative airtight membrane that changes permeability according to the ambient relative humidity ((RH) - this contributes to maximum protection in the building envelope where moisture levels are critical.
- Ensures optimum moisture flow through building structures with a Sd range of 0.4m to 60m.
- Hygrovariable Technology - Extremely safe airtight system.
- High-performance solution that provides protection from heat loss through the thermal insulation.
- Elastic and durable.
- Reinforced for optimum strength.
- Durable towards UV ageing.
- EPD certified.
General information
Color | White |
Finish | Gloss |
Shape | Other |
Length | 50000 mm |
Width | 1500 mm |
Warranty description | Ten year |
Uniclass | |
CAWS | P10/60 Air and vapour control layer P10/310 Air and vapour control layer J42/395 Air and vapour control layer J41/395 Air and vapour control layer J31/330 Air and vapour control layer J21/395 Air and vapour control layer H31/45 Air and vapour control membrane H31/261 Air and vapour control membrane H30/30 Air and vapour control membrane H30/261 Air and vapour control membrane |
Product range |
Specification data - Plastics sheets
Purpose | Airtight vapour control layer. |
Standard | To EN 13984. |
Performance characteristics | |
Tensile strength (minimum) | MD/CD to EN 12311-1, 350 N/315 N /50 mm. |
Tear resistance | MD/CD to EN 12310-1, 350 N/ 375 N. |
Elongation to break | MD/CD to EN 12311-1, 20%/ 20%. |
Water vapour resistance (minimum) | g value: 40 MNs/g; g value, humidity variable: 2 - >150 MNs/g. |
Fire performance | To EN 13501-1, Class E. |
Third-party certification | Environmental Product Declaration (EPD).Guidance for specification option: Declaration number: EPDIE-22-83. |
Form | Non-woven and reinforced. |
Physical properties | |
Colour | White. |
Weight (minimum) | 120 g/m². |
Dimensions | |
Width (minimum) | 1500 mm. |
Roll length (minimum) | 50 m. |
Water resistance | To EN 1928, W1. |
Sd value | To EN 1931, 8 m. SD vapour variability range to EN 12572, 0.4–>30 m. |
Sustainability data
Contains Red List materials | No |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | Manufacturer guidance5.61E-03 Biogenic carbon content in product (kg C per m²). |
EPD
Third party certifications
EPD
VARA PLUS - Environmental Product Declaration
Literature
VARA PLUS Technical Data Sheet
Case studies
Forensic Laboratory Backweston
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