Good quality, long-term insulation performance in the building envelope is required to save energy and reduce the carbon footprint of the built environment. In light of the global climate crisis, there is a growing demand for innovative insulation products that can help create buildings that achieve six-star energy ratings and beyond. One of these products is extruded polystyrene (XPS) insulation – a cost-efficient way to maximise thermal efficiency through perimeter edge, under-slab and in-slab insulation.

Framework for Sustainability: A Guide to Extruded Polystyrene in Energy-Efficient Building Design examines why XPS insulation is a valuable tool when designing high-performing building envelopes. We discuss the physical properties of XPS insulation as well as its numerous architectural benefits. We then look at how XPS can be used for building envelope applications, as well as for perimeter edge, under-slab and in-slab insulation. Finally, we look at the relevant environmental considerations when specifying XPS products.

Styroboard XPS by Foamex is the material of choice for home builders, specifiers, architects and engineers due to its high compressive strength and superior thermal performance. Dimensionally stable, organically inert, and moisture resistant, Styroboard XPS meets a number of key requirements in structural and civil engineering. Offering superior compressive strength and higher long-term R-Values, Styroboard XPS is suitable for use on floors subjected to engineered loads and constant traffic, as well as insulation for inverted roofs, rooftop gardens, parking decks and as commercial purlin roof spacers.