VARA FLUID SPRAY - Liquid Airtight Membrane - Vapour Control Layer
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Passivhaus
Certificate type
DoP
Certificate type
A spray applied air and vapour control layer (AVCL). Smart membrane. Passive House Certified Airtight System.
Application
VARA FLUID is an air and vapour control layer designed for use internally and externally on the warm side of insulation on wall, ceiling, roof and floor applications. It is easily applied with either an airless paint spray device or roller, and dries to an airtight flexible coating.
Suitable for:
- Application on various surfaces – masonry concrete, silicate, OSB, plywood etc.
- Wall, ceiling, roof and floor applications
- Externally vapour open and vapour closed structures
- Wall to floor connections
- Wall to ceiling connections
- Wall to timber connections
- General construction joints
- Residential and commercial buildings
Description
VARA FLUID Spray is a is a humidity variable airtight vapour control layer (AVCL) designed to ensure seamless airtightness in both new build and retrofit projects.
Features and benefits:
- Innovative liquid airtight membrane that changes vapour permeability according to the ambient relative humidity (RH). This contributes to maximum protection in the building envelope where moisture levels are critical, allowing vapour to escape and dry the structure.
- Ensures optimum moisture flow through building structures with a Sd range of 0.15m to 16m.
- Hygrovariable Technology - Extremely safe airtight system.
- phA Class Passive House Certified airtight system, featuring an air permeance value of 0.00 m³/(m²h)
- Flexible and durable.
- LOW VOC polymer-based liquid.
- Class W1 resistance to water penetration.
- Excellent adhesion on various surfaces .
- Fast application – speeds up construction.
- Ready-to-use product – vertical or horizontal application.
General information
Color | Beige |
Material | Polymer |
Shape | Formless |
Warranty description | Ten year |
Uniclass | |
CAWS | P10/60 Air and vapour control layer P10/310 Air and vapour control layer |
Product range |
Specification data - Plastics sheets
Material | Polymer-based liquid. |
Purpose | Airtight vapour control layer. |
Performance characteristics | |
Resistant to underground gases | Radon.Guidance for specification option: Radon diffusion coefficient to K124/02/95, 6.5.10-12 D(m2/s). |
Water vapour resistance (minimum) | g value: 80 MNs/g; g value, humidity variable: 0.75–80 MNs/g. |
UV stabilization | 3 months. |
Third-party certification | GEV-EMICODE certifed, phA certified component. |
Form | Liquid. |
Physical properties | |
Colour | Beige. |
Weight (minimum) | 11.5 kg. |
Dimensions | |
Thickness (minimum) | 0.3–1.0 mm.Manufacturer guidanceCoating thickness. |
Air permeability | To EN 12114, 0.00 m³/(m²h). Guidance for specification option: phA certified. |
Water resistance | To EN 1928, W1. |
Sd value | To EN 1931, 16 @ 0.3 mm. SD vapour variability range to EN ISO 12572, 0.15–16 @ 0.3 mm. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Europe |
Material | Polymer |
Expected Life | Lifetime |
Third party certifications
Passivhaus
VARA FLUID SPRAY - Certified Passive House Component
DoP
VARA FLUID DoP
Literature
VARA FLUID SPRAY Technical Data Sheet
VARA FLUID Product Brochure