The 75mm Polystyrene Sheet (1220mm x 2440mm) is a robust, high-capacity expanded polystyrene (EPS) insulation panel designed for applications requiring substantial thermal resistance and energy efficiency. Featuring a 75mm core thickness, it provides a high level of thermal performance, making it well-suited for meeting stringent building regulations in modern construction and retrofits.
 
Manufactured from high-density rigid EPS, this insulation board combines high compressive strength with exceptional moisture resistance and long-term dimensional stability. Despite its increased thickness, the board remains lightweight and easy to manipulate on-site, cutting cleanly with standard fine-toothed hand saws or hot wire cutters for tight, precision fits that eliminate air gaps and cold bridging.
 
Supplied in a standard 8ft x 4ft sheet size (2440mm x 1220mm), it delivers rapid, large-area coverage for ground-bearing floors, timber joist floor systems, external wall insulation systems, and loft insulation applications. It is chemically inert, decay-proof, and designed to be installed in conjunction with a fire-rated protective lining, such as standard gypsum plasterboard.
 
Key Benefits
BBA accredited, certificate 87/1796.
Provides cost effective insulation for the lifetime of the building
Excellent compression properties
100% recyclable
Achieves an A+ rating in the BRE Green Guide to Specification
Available with Class E fire retardant additive
Flood proof
Lightweight and easy to handle
Is non-toxic and biologically inert