Deck-VQ insulation from Recticel

Deck-VQ insulation from Recticel

Recticel’s ultra-thin vacuum insulation solution Deck-VQ can help to achieve the desired U-value on refurbishment projects.

Due to its minimal thickness and extremely high insulation value, Deck-VQ was selected for a refurbishment project in Wimbledon, south-west London. The 125m2 roof included low perimeter parapet walls. In these areas, insulation build-up is required to be kept to a minimum without compromise to its thermal performance.

The Deck-VQ vacuum insulation panel (VIP) is encapsulated to protect the Core-VQ at its centre, which has a 0.006 declared lambda value. This capability makes it a suitable insulation solution for flat roof and terrace applications where space is limited and material thickness is an issue, but high thermal performance is required.

For this project, 60mm-thick Deck-VQ panels were installed by contractor Mulberry GBC Ltd on behalf of CC Construction, as part of a warm roof system, recommended by cold liquid applied waterproofing manufacturer Triflex.

The flat roof also featured 40mm Powerdeck F boards, supplied by Recticel’s sister company, Gradient. This flat roof insulation solution is designed for use in built-up felt and single-ply membrane waterproofing systems. A cold liquid-applied waterproof Triflex system, comprising a carrier membrane and a final, reinforced waterproofing layer completed the roofing system.

Light and easy to handle, the Deck-VQ panels and Powerdeck F boards were key to this project’s completion. As part of the warm roof’s overall composition, they ensured the roof achieved a U-value of 0.18 W/m2K in accordance with Part L building regulations, and in conjunction with Powerdeck F boards, guaranteed its long-term thermal and waterproof performance.

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