As both are types of polystyrene insulation, extruded polystyrene (XPS) and expanded polystyrene (EPS) are often seen as very similar. They tend to be viewed as more direct competition to one another than other types of rigid insulation like PIR and phenolic foam. While there are similarities in the applications for which XPS and EPS … Read more
Extruded polystyrene (XPS) can be used to insulate basement structures both externally and internally. The material’s unique combination of performance characteristics means it is particularly well-suited to insulating on the outside of below-ground structures. Choosing to insulate internally or externally depends whether a project is new-build or retrofit, and how continuity will be achieved with … Read more
Enhancing the insulation specification at the base of masonry cavity walls, below damp proof course (DPC) level, can reduce thermal bridging and ensure there is no risk of surface condensation occurring. At the same time, it can also help to guard against ingress of moisture from the ground, thereby satisfying multiple requirements of building regulations. … Read more
A new product range from Polyfoam XPS is designed to make it easier for homeowners to achieve better levels of insulation in extension and retrofit projects. Polyfoam Handyboard provides extruded polystyrene (XPS) insulation boards for use by a range of installers – from experienced DIYers to professional building contractors. Offered in smaller board sizes than … Read more
