XPS (Extruded Polystyrene) foam is a type of insulation material commonly used in roofing and construction applications. It is a closed-cell foam that is known for its high resistance to moisture and its excellent insulation properties.
Extruded Polystyrene (XPS) is a rigid thermoplastic material manufactured from polystyrene. XPS is a high performance, water resistant and lightweight board of thermal insulation.
XPS foam board is often used for above-grade insulation applications such as walls, ceilings, attics and roofs as well as for below-grade applications such as foundations and basements. When used above-grade, it can reduce thermal bridging and improve energy efficiency.
Direct bonding: involves adhering the foam directly to the roof deck using an adhesive.
Mechanically fastened: involves using fasteners to attach the foam to the roof deck.
Loose-laid: involves placing the foam on top of the roof deck without any attachment method.