Molded Polystyrene Board Insulation

Insulfoam is a division of carlisle construction materials a wholly owned subsidiary of carlisle companies nyse.

Molded polystyrene board insulation.

Products manufactured to this specification are intended for use as thermal insulation for temperatures from 65 to 165 f 53 9 to 73 9 c. Csl and is the nation s largest manufacturer of block molded expanded polystyrene eps. Resistant xps insulation astm c 578 type iv 25 psi minimum description owens corning foamular 250 extruded polystyrene xps insulation is a closed cell moisture resistant rigid foam board well suited to meet the needs for a wide variety of building applications. Published by astm international 100 barr harbor drive po box c700 west conshohocken pa 19428 2959 2.

Polystyrene insulation is manufactured in a variety of board sizes usually a minimum of 1 inch thick. The low thermal conductivity high compressive strength and excellent shock absorption properties of polystyrene make it an ideal material for residential and commmercial building insulation shipping and packaging material and to shape foundry patterns for metal casting. Class b insulation board shall be formed by the expansion of poly styrene base resin in an extrusion pro cess. 1 1 this specification 2 covers the types physical properties and dimensions of cellular polystyrene boards with or without facings or coatings made by molding eps or extrusion xps of expandable polystyrene.

Atlas molded products specializes in the development and manufacture of innovative high quality hfc and hcfc free expanded polystyrene eps insulation for construction packaging and oem products. Astm c578 10 standard specifi cation for rigid cellular polystyrene thermal insulation. Molded polystyrene is a thermoplastic closed cell lightweight rigid foam plastic. Foamular 250 xps insulation is ideal for many residential and commercial.

Excavated after 15 years as a below grade foundation insulation the molded polystyrene had retained 94 of its published r value and contained only 4 8 moisture content. Expanded polystyrene insulation more commonly referred to as eps is a closed cell insulation that has been around since the 1950 s. The r value at the time of excavation showed that molded polystyrene is less affected bymoisture content than xps. Tapered units are also manufactured for use in roofing assemblies where the insulation is used to create slope for positive drainage.

Polystyrene resin beads or granules in a mold. The insulation shall be uniform ly fused homogenous and essentially unicellular the old specification styrofoam sm brand insulation applied to the interior masonry walls at the mercer. Eps is made of 98 trapped air and only 2 plastic making it an efficient insulator with a small amount of raw material. Owens corning foam insulation llc one owens.

Eps is expanded polystyrene also known as molded polystyrene.