Ravatherm XPS X ULTRA 300 SL

The lowest thermal conductivity of any UK manufactured XPS board accompanied with a BBA certificate.

Ravatherm XPS X ULTRA 300 SL is an XPS thermal insulation board for use on inverted flat roofs, green, brown and blue roofs^*. It has a declared thermal conductivity of 0.027 W/m.K. It also has a Global Warming Potential (GWP) of less than one.

Available in thicknesses of 70mm, 80mm, 105mm, 130mm, 145mm, 175mm, and 205mm.

300kPa compressive strength (according to EN 826) 

110kPa compressive creep (2% deformation after 50 years according to EN 1606) 

_{^{*green, brown, and blue roof applications are outside the scope of the BBA certificate}}