GreenLine EPS in the renovation of Norway’s oldest high school

Meeting high energy efficiency standards and CO2 reductions

The renovation sets standards for energy efficiency - among others thanks to used fish boxes

Norway’s oldest high school, Trondheim Cathedral School, founded in 1152, is currently undergoing renovation and expansion. Greenline EPS (expanded polystyrene) insulation from BEWI, made with recycled material, plays an important role in meeting high energy efficiency standards and comes with an additional environmental benefit: saving 50 tonnes of CO2 compared to conventional EPS.

 

“The project includes constructing a new building and significantly renovating the existing one”, says Sondre Synnevåg, project engineer for the contractor in charge, Betonmast Trøndelag AS.

The project complies with the stringent requirements of the ZEB-0 (Zero Emission Building) standard. The ZEB-0 standard means that the building’s renewable energy production must offset the greenhouse gas emissions generated during its operation.

 

 

“The contractor selected GreenLine EPS insulation boards for the floors and facades. The insulation meets the strict U-value requirements for modern buildings, and made from recycled feedstock, it also offers environmental benefits. This enables the project to achieve its ambitious environmental goals without compromising quality”, explains Ove Eidsvåg, sales representative in BEWI.

BEWI collects and recycles used EPS from a variety of sources, for example fish boxes and packaging products. The recycled feedstock is used in the production of products lowering the carbon footprint, such as GreenLine EPS insulation boards. An EPD (environmental product declaration) providing information about the environmental performance follows the product.

Read more about GreenLine

 

Insulation of buildings is one of the most efficient means to reduce CO₂ emissions and reach climate reduction targets. In Trondheim Cathedral school, 1 000 m³ of GreenLine EPS is used, saving an additional 50 tonnes of CO₂ compared to the use of conventional EPS.

“Efficient and proper insulation reduces CO₂ emissions from heating and cooling the building. By using GreenLine EPS insulation instead of traditional EPS, the project further cuts its greenhouse gas emissions by an additional 50 tonnes”, Synnevåg adds.

The Trondheim Cathedral school project aims to be a model for future building projects in terms of energy-efficiency, while respect for history and focus on the future make the renovation completely unique. When completed, Trondheim Cathedral school will not only remain Norway’s oldest school but will also be one of the most modern and energy-efficient.