{"product_id":"1631308-owens-corningr-foamularr-250-25-psi-r-20-extruded-polystyrene-foam-board-insulation-4-x-4-x-8-square-edge","title":"Owens Corning FOAMULAR 250 (25 psi) R-20 XPS Foam Board Insulation, 4 in. x 4 ft. x 8 ft., Square Edge","description":"\u003ch1\u003eFOAMULAR 250 R-20 XPS Foam Board, 4x4x8, Square Edge\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eHigh-performance extruded polystyrene (XPS) rigid foam board delivering R-20 thermal resistance in a 4 in. thickness. Designed for interior\/exterior walls, foundations, and sheathing, it offers 25 psi compressive strength with excellent moisture resistance and easy score-and-snap installation.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eKey Features:\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh R-Value:\u003c\/strong\u003e R-20 thermal resistance at 4 in. thickness for strong energy savings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Strength:\u003c\/strong\u003e 25 psi compressive strength handles foundation and wall loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Resistant:\u003c\/strong\u003e XPS core resists water absorption to help maintain R-value\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Work With:\u003c\/strong\u003e Lightweight board scores and snaps cleanly for quick installs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Suitable for basements, exterior sheathing, cavity walls, and below slabs\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003ePlease check the Product Data Sheet \u003ca href=\"https:\/\/superarbor.io\/cdn\/shop\/files\/c9f26abf-13e7-4fdf-ae5e-6f96a6222baa_73f7e5cb-4603-4977-9730-83374be2b79a.pdf?v=1763102210\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eHere\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\n    \u003ctable\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n                \u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eXPS Rigid Foam Board (Extruded Polystyrene)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFOAMULAR NGX 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressive Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eR-Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 ft (96 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 sq ft per board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEdge Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare Edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFaced or Unfaced\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnfaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Install Surface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConcrete, Plywood, Wood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterior\/Exterior\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterior\/Exterior\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBasement, Exterior Sheathing, Interior Wall; Below slabs; Crawl spaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFormaldehyde Free, Moisture Retardant, Mold Resistant, Water Resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Weight (lb.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLimited Lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Note\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;80% reduction in global warming potential vs. legacy FOAMULAR; HFC‑134a eliminated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGREENGUARD Certified; Listed in ENERGY STAR Seals and Insulates program\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003chr\u003e\n    \u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Can this foam board be used below grade or under slabs?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Yes. It is suitable for foundation walls, basements\/crawl spaces, and below slabs; check local codes for required coverings and vapor control.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Does it need to be covered when left exposed indoors?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Yes. It cannot be left exposed and must be covered by a 15‑minute thermal barrier such as drywall.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Is the board faced or unfaced?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Unfaced XPS rigid foam board.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What are the board dimensions and coverage?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Each board is 4 in. thick, 48 in. wide, and 8 ft. long, covering 32 sq. ft.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What is the environmental profile of NGX?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Manufactured with a next‑generation blowing agent with \u0026gt;80–90% reduction in global warming potential versus legacy FOAMULAR formulations.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eSculpted Thermal Armor in Signature Pink\u003c\/h2\u003e\n    \u003cp\u003eThis sleek, square‑edge XPS panel wraps a space in quiet confidence, delivering crisp lines and a flush fit that feels thoughtfully engineered. I love the bold pink surface—an unexpected pop during construction that signals performance and polish. Layer it behind refined cladding or concrete to create a home that’s warm, dry, and impeccably detailed. It’s a discreet essential—practical luxury that underpins elevated living.\u003c\/p\u003e\n    \n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eUpgrade your envelope with FOAMULAR 250 and lock in long‑lasting R‑20 performance—add it to your project today.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/superarbor.io\/cdn\/shop\/files\/35f94138-d9d8-4c84-8897-69afe977fee1_4c5f1f9a-1af6-4b9c-ae6e-85c4c914cf99.pdf?v=1763102204\" target=\"_blank\"\u003eWarranty\u003c\/a\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/superarbor.io\/cdn\/shop\/files\/b3751e9e-d59b-44e0-9cfc-ac0cc46a1035_60daac67-a492-4934-b695-dbc1b923a717.pdf?v=1763102207\" target=\"_blank\"\u003eInstallation\u003c\/a\u003e\u003c\/p\u003e","brand":"Owens Corning","offers":[{"title":"Default Title","offer_id":48991781814486,"sku":"3JNGX","price":111.42,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/5244\/2838\/files\/owens-corning-foam-board-insulation-3jngx-64_1000.jpg?v=1783638001","url":"https:\/\/buildsupplyus.myshopify.com\/products\/1631308-owens-corningr-foamularr-250-25-psi-r-20-extruded-polystyrene-foam-board-insulation-4-x-4-x-8-square-edge","provider":"Buildsupply","version":"1.0","type":"link"}