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Protect reflective membranes help deliver Passivhaus for self-build

A combination of reflective membrane technology and airtightness products from Protect has been used to help a self-build timber frame project to achieve Passivhaus standard.

Designed, manufactured and erected by Oregon Timber Frame Engineering, the property known as ‘Judith’s Hoose’ in St Boswells, Scotland features Protect TF200 Thermo as the external, low emissivity breather membrane and Protect VC Foil Ultra as the low emissivity air and vapour control layer on the warm side of the insulation. Elsewhere internally, Protect BarriAir has been used to ensure an effective air leakage barrier that passes the stringent airtightness tests required to meet Passivhaus standard. With features such as a controlled ventilation system, air-source heating system and underfloor heating, the development is seen as a good example of an energy efficient home.

Robin Dodyk, Technical Director of Oregon comments, “The use of construction membranes from Protect helped ensure target U-values to be met for this development. The use of still airspace cavities with Protect TF200 Thermo and VC Foil Ultra enhanced the thermal performance of the wall structure to achieve 0.15 W/m2K, significantly improving the U-value from 0.22 W/m2K if non-reflective alternatives were incorporated into the build-up.”

Protect’s range of wall, ceiling and floor construction membranes provides a comprehensive solution to the timber frame build sector. In particular, Protect products featuring reflective technology help deliver thermal efficiency benefits to meet low target U-values and ensure compliance with relevant Building Regulations.

For details of how Protect products can be incorporated into residential and commercial builds, please visit, email or call 0161 905 5700, quoting ‘Judith’s Hoose.’

Related products

Protect TF200 Thermo insulating breather membrane

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Protect VC Foil Ultra insulating vapour control layer and air barrier

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Protect BarriAir air barrier and vapour control layer

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Glidevale Protect is a division of Building Product Design Ltd.

Other subsidiaries include ventilation systems specialist Passivent and Kingfisher Louvres, manufacturer of aluminium louvres systems.

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