Perimeter strip, also called edge insulation, reduces heat loss into the walls and is an essential material with screed installations. Most importantly, the insulation provides a cushion for the expansion and contraction of the screed during heating and cooling. Edge insulation should be laid against all solid structures within the room including pillars, columns and steps.
Screed floors without edge insulation are prone to cracking causing the pipes to split. It’s essential to use perimeter stip when installing underfloor heating in screeds and we strongly advise against using strips of Kingspan/Celotex in place of the correct installation materials as this can potentially damage the system and void the warranty.
Dimensions per roll: 8mm x 150mm x 25m/50m (approx)