When renovating rhymes with energy savings

Providing comprehensive solutions and saving energy are the challenges facing Saint-Gobain in renovation projects. Leading by example in Germany.

Quand rénover rime avec sobriété
©Saint-Gobain Isover

Located on the shores of Germany’s picturesque Obing Lake, the Obing farmhouse, built in 1880, is considered one of Bavaria’s most beautiful “rectangular” farmhouses. The building was transformed into a residential property in 2019. A total of 37 condominiums, with floor areas of between 57 m² and 172 m², were created with two requirements: respect the site’s historical heritage and meet sustainable renovation criteria with insulation and energy efficiency as top priorities.

The historic frame was therefore combined with high-performance insulation solutions consisting of Isover’s Ultimate mineral wool, marrying thermal efficiency and fire protection (>1,000 °C), thus creating a high energy quality roof structure. For the vapor barrier system, Isover’s Vario range was chosen. All this without detracting from the majestic silhouette and perfectly symmetrical facades.

Also in Germany, the creation in July 2022 of Pre.Formance – a contraction of prefabrication and performance – offers a lightweight solution for rapid and minimally invasive renovation. More than just a new building envelope, the offer, which is eligible for the highest energy level, encompasses development, planning, construction, and installation.

The Pre.Formance pilot project, Reallabor Mönchengladbach (Mönchengladbach Living Lab), was launched in the summer. The site consists of 6 houses (24 housing units) constructed in 1956. By renovating them, significant energy savings are expected.

Building renovation is therefore a major focus for energy efficiency of buildings. Better insulation means less consumption, and therefore more energy savings, an equation that the German construction sector has fully undertaken to solve.