VapourTX Thermo

VapourTX® Thermo Vapour Control Layer is a high-resistance vapour barrier specifically designed to reduce water vapour transfer through the building or structure when placed on the warm side of the insulation.

VapourTX® Thermo is ideal for various construction applications, including walls, ceilings, and floors.

 

Installation

Datasheet

Description

VapourTX® Thermo is a reflective vapour control layer made from a nonwoven composite fabric incorporating a highly reflective, low-emissivity foil. This product offers exceptional performance as an air and vapour barrier. The reflective surface assists in enhancing overall thermal performance in the adjacent cavity.

Reflective Air and Vapour Control Layer – Product Features

• To be installed on the internal (warm) side of the insulation, with the Reflective face away from the insulation
• Forms a barrier against air leakage and water vapour transfer
• The Reflective face is specifically designed to enhance the thermal performance of the structure to which it is applied
• It is used in a range of construction applications, including walls, ceilings, floors, pitched roofing and low-sloping metal roofing
• Fabric Weight 142g/m2

Technical Details

VapourTX® Thermo VCL
Weight (g/m2) 142
CE Certification
BM TRADA Certification
Application Internal
Roll Dimensions 3.0 x 100m
Reaction to Fire EN 11925-2 – Class E Water
Vapour Resistance (Sd) EN 1931 – 150m
Vapour Resistance (MN/sg) EN 1931 – 750
Water Penetration EN 1928 – Class W1
Tensile Strength (N/5cm) EN 12311-1 – MD 260 (-60) | CD 200 (-50)
Elongation (%) EN 12311-1 – MD 59 (-20) | CD 70 (-20)
Tear Resistance (N) EN 12310-1 – MD 155 (-55) | CD 155 (-55)
Flexibility at low temperature EN 1109 – No cracking at minus 40ºC

Installation

• VapourTX Thermo is to be installed on the internal (warm) side of the insulation, with the Reflective face away from the insulation.
A minimum 19mm airspace should be maintained between the
plasterboard and vapour control layer. This airspace should be utilised as a service void to reduce the number of penetrations to the VCL.

• Membrane should be fixed to studwork using staples, with min 19mm timber battens used to create service void. Laps to be min. 100mm and sealed with a proprietary silver tape.

• Penetrations and tears should be closed off using silver tape, with tears greater than 25mm to be covered by VCL patches with a min 100mm lap around the perimeter and well sealed with silver tape.