Designed to be used behind any cladding type - including combustible and open-joint assemblies. In general, when comparing EPS and XPS board densities, the compressive strength of XPS is greater than that of EPS. Grade 3-25 psi (172 kPa), min, compressive strength. The thermo-mechanical properties obtained of insulation boards such as thermal conductivity, traverse strength, tensile strength parallel and perpendicular to surface, and compressive strength are in accordance with the requirements of the American Society for Testing and Materials C208-12 standard for different uses. For faced rigid insulation boards (such as foil faced or glass fiber faced polyisocyanurate), the permeance of the facing is often much lower than the permeance of the polyisocyanurate and will govern the overall permeability of the sheathing board. Next to that, a high compressive strength is very important. Mineral wool with a nominal 8 pcf density reaches 5% compression with only 0. SPF is a, lightweight and resilient, foamed plastic composed of hydrogen and carbon atoms. The compressive strength value can be used to compare different products or between brands of the same type of product. (To compare the old GSA specs with the new, please refer to Tables 1 and 2). I'd go with the 1000 psi foam just to be safe though. A typical example would be regular heavy traffic such as trucks and emergency vehicles. These boards should connect closely, as this will help to guarantee a long sustainability. Otherwise, the insulation boards might be a breeding ground for bacteria, moulds and vermin. polystyrene (XPS) insulation is suitable for use under concrete slabs. Class 2-Faced with polymer-bonded glass fiber mat membrane facers on both major surfaces of the core foam. 3 Compressive strength σ m or compressive stress at 10% deformation σ 10 2. Typical Strength Characteristics – EPS Thermal Insulation Board To meet the compressive resistance requirements specified in ASTM C578 polystyrene thermal insulation board must provide the following compressive strengths at 10% deformation when tested in accordance with ASTM D 1621. Grade 2-20 psi (138 kPa), min, compressive strength.
11 Benefits of PIR/PUR Insulation Products for Flooring: Constant thermal performance for lifetime of the building Resistant to moisture ingress Lightweight and non-fibrous insulation Does not support the growth of fungi Easy to handle and install Good compressive strength (in excess of 150kPa at 10% compression) Insulation. Compressive strength of insulation boards The IKO enertherm ALU insulation board is suitable for new-builds and the refurbishment of existing buildings with flat roofs.