High Compressive Strength Foam Insulation

A common design assumption leads to specification of rigid foam strengths that are many orders of magnitude higher than necessary which can double the insulation.

High compressive strength foam insulation.

The compressive strength of the chosen thermal insulation should be enough to bear both dead and active loads imposed by the flat roof and its use. The product needs to offer sufficient compressive strength for the intended application and also be capable of withstanding any demands placed on it during installation. They have a tensile strength of 65 75 psi compressive strength of 45 55 psi and r value of 6 9 per inch. Foamular 400 600 1000 high compressive strength rigid foam insulation product data sheet 467 kb pdf technical bulletins.

The most important mechanical property of eps insulation and building products is its resistance to compressive stresses which increase as the density becomes higher. It is comprised of an extruded polystyrene closed cell foam panel with continuous skin. Required properties for celfort and foamular extruded polystyrene insulation. A common type of xps such as dow s styrofoam or foamular from owens corning and type ix eps is rated for 25 psi.

When identifying the compressive capabilities of an insulation material it undergoes two tests. The mechanical strength of eps varies with its density. Duratite roof foams come in three different densities. Astm c578 types and physical properties for foamular xps 106 kb pdf foamular extruded polystyrene insulation for cold storage applications technical guide 884 kb pdf.

2 5 2 8 and 3 0 and are class i fire rated. If you need something with higher compressive strength xps with a psi rating of 40 60 and even 100 is available. Short term testing compressive behaviour bs en 826 2013 and. Compressive stress when the compressive strength is not reached the point at which the load stress causes a 10 relative deformation of the insulation.

All types of high strength construction applications the boards are lightweight durable and impact resistant which helps to reduce job site damage foam insulation can be scored and fabricated easily with common hand tools. Eps is a closed cell lightweight and resilient foamed plastic composed of hydrogen and carbon atoms. High compressive strength rigid foam insulation description owens corning foamular 400 600 1000 extruded polystyrene insulation is a high density insulation designed for use in engineered applications requiring additional load bearing capability. The other consideration for sub slab use is the foam s compressive strength.