Envirotect XT 150 Reflect W1 designed and developed for areas of extreme exposure is a spunbond non-woven polypropylene construction membrane with a high purity aluminium surface (0.79 R Value) designed and developed for use in timberframe, light steel gauge, modular building and leisure building applications.
Envirotect XT 150 Reflect W1 delivers first line protection in areas deemed to be of high exposure to the external of the building during construction against driving rain, and wind-blown snow providing ultimate protection to the exterior of the building.

The high water-vapour permeability provided from Envirotect XT 150 Reflect W1 ensures water vapour can pass through the structure safely into a vented cavity. The ultra-low emissivity surface enhances the thermal performance of the airspace, significantly improving the overall thermal performance of the wall construction when facing a still air cavity.

Suitable Envirotect XT 150 Reflect W1 Applications:

• Cladding
• Timberframe

• Areas of high and extreme exposure – Structural timber association advice note 18
• Effective condensation control and airtightness within walling construction
• Flexible and easy to install
• High-purity aluminium surface – enhanced thermal performance
• High UV resistance in the event of extended exposure times
• XT Reflect W1 greatly exceeds the requirements of the updated guidance in building regulations Approved Document Part L
• Meet and exceeds waterproofing requirements in BS EN13589 – 2:2014 (W1)
• Independently tested to: BS EN ISO 8990:1996. Thermal insulation. Determination of steady-state thermal transmission properties. Calibrated and guarded hot box
• Prevents water ingress to the structure
• Provides comprehensive waterproofing barrier to the sheathing during construction phase