Kingspan Insulation has formed the cornerstone of a refurbishment project in London which shows how solid walled homes can be made much more energy efficient, and in so doing cut carbon emissions and help combat climate change.
Using a range of Kingspan Insulation materials, Camden Borough Council has completely refurbished a dilapidated semidetached property over four floors. The result is a "Victorian House of the Future" with predicted carbon dioxide emissions that would allow it to achieve a Level 4 rating to the Code for Sustainable Homes. This means that it easily exceeds current Building Regulations and performs better than nearly all new build properties.
At "The Camden House", the biggest challenge was how to insulate the solid brick walls. The answer was to use Kingspan’s Kooltherm K18 Insulated Plasterboard*, which is capable of providing excellent thermal performance without excessive product thicknesses. Most of the walls in the house now achieve a U-value of just 0.19 W/m2.K - the current Building Regulations requirement found in Approved Document L1B is 0.35 W/m2.K.
The rest of the house was insulated to a similarly high standard, with Kooltherm K7 Pitched Roof Board used to help the roof reach a low U-value of 0.15 W/m2.K. Several other versatile Kingspan Insulation products were used on the project, including insulation for flat roofing and Kooltherm K3 Floorboard* in the basement floor.
Superb workmanship and attention to detail meant that cold bridging was avoided wherever possible and extremely good air tightness (for a refurbishment project) was achieved. For example, in the roof, an extra layer of Kingspan nilvent breathable membrane with sealed joints was placed between the layers of insulation sited within and over the rafters. This helped the whole property to achieve an air tightness figure of just 6.7 m3/m2/hr at 50 Pa.
* Please note that Kingspan Kooltherm K3 Floorboard and Kingspan Kooltherm K18 Insulated Plasterboard are no longer available for specification. Instead please refer to the lower-lambda equivalents: Kingspan Kooltherm K103 Floorboard and Kingspan Kooltherm K118 Insulated Plasterboard.