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.

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}}