External Wall Insulation (EWI) Slab (Rocksilk EWI Slab) is a medium density compression resistant, water resistant, mineral wool slab. It’s fire resistance removes the need for fire barriers, giving simple, quick and economical insulation for external wall insulation systems. It is designed to thermally upgrade existing buildings some of which may be hard to treat.
External Wall Insulation
Non-combustible material Read more
|R-value (m2 K/W)||Length|
per pack (m2)