Following a successful pilot launch during 2014, Dow Building Solutions has announced the commercial roll-out of XENERGYTM, a brand new, flame retarded, XPS roof insulation product. In a departure from the blue STYROFOAMTM boards that the company is widely known for, the XENERGYTM boards manufactured by Dow Building Solutions' King's Lynn production site will be steel grey in colour.

Dow, the inventor of STYROFOAMTM has developed XENERGYTM to achieve a significantly improved LAMBDA insulation performance and to deliver a Global Warming Potential (GWP) of less than five. Through combining a manufacturing process which uses CO2 as the blowing agent and adding infra-red blocking particles to scatter and reflect heat radiation within the foam board, LAMDA values have been increased by 11%.

Dow Building Solutions has decades of history in the construction industry, which began with the launch of STYROFOAM™ extruded polystyrene insulation in the 1940s, and there have been a number of key innovations since then. STYROFOAM™-A products were the first XPS to be made in the UK with CO2 as the blowing agent.

XENERGY™ SL, the first XENERGY product available in the UK, is designed to offer highly moisture-resistant flat roof insulation at thinner thicknesses than conventional XPS alternatives. XENERGY™ SL offers 4mW thermal conductivity gains in various thicknesses (see attached datasheets).

Chris Gimson, head of commercial at Dow Building Solutions, said: "The UK is leading the way with the commercial roll-out of XENERGYTM, a product which has numerous benefits, including significantly improved thermal performance. It signifies a new era for the business and demonstrates our commitment to formulating and manufacturing the highest standard insulation materials.”

For more details on stockists of XENERGYTM SL visit