Novia MirrorWrap W1 Reflective Wall Breather
Our W1, 98% reflective wall breather which can achieve an additional r value of up to 0.74m²K/W*, when correctly installed
Product Overview
Novia® MirrorWrap W1 is a high quality, 4-layer laminate, Class W1 water resistant and reflective wall breather membrane for insulated wall applications. The product is CE certified and meets EN 13859-2 for wall applications. Novia® MirrorWrap W1 meets EN 1928 Class W1 water resistance, but still provides high breathability.
The membrane has a reflectivity of 98%, which can improve the U values of constructions (refer to BR443 compliance information on the product datasheet). When correctly installed, it is possible to achieve an additional r value of up to 0.74 m²K/W in an unventilated wall cavity. Additionally, the reflective face allows the construction to remain cooler in summer and warmer in winter. Novia® MirrorWrap W1 is ideal for use on timber frame and offsite/modular constructions. To maximise the products performance the reflective face is not Novia branded, has no text or images, and is white on the reverse.
Novia® MirrorWrap W1 can be found on NBS Chorus and NBS Source software packages. Full information can be found for NBS specification with the table below. The links will open a pop up window with full specification information.
Full installation and technical details can be found on the datasheets available for download below.
Key Features
- Roll sizes: 1.5m x 50m & 2.7m x 100m
- 98% reflectivity, which can improve r values by up to 0.74 m²K/W
- Class W1 water resistance to EN 1928
- 4-layer wall breather with microporous core
- CE compliant to EN 13859-2 (walls)
- Use in conjunction with Novia VC200 Reflective AVCL
Download Links
Installation Tips
Installation guidelines can be found on individual product datasheets using the links on this page. To install Novia breather membranes, we recommend using two tape sealing system to improve airtightness.
For Novia® MirrorWrap W1, Novia® Double Sided Lap Tape (DSLT) can be used between laps of the breather membrane. This can be used in conjunction with Novia® Reflective Membrane Lap Tape (RMLT), a single sided overlap tape which is used to complete the seal, improve airtightness and keep down any excess membrane which may get caught in the wind. Novia® RMLT should only be used in addition to Novia® DSLT, for a high specification and fully reflective finish.