{"product_id":"kingspun-greenguard-gg300r-xps-insulation-board","title":"Kingspun Greenguard GG300R XPS Insulation Board","description":"Kingspan GreenGuard GG300R is a robust extruded polystyrene (XPS) insulation board specifically engineered for applications where high strength and moisture resistance are essential. With a thermal conductivity of 0.033 W\/mK, this rigid insulation board delivers dependable thermal performance across a wide range of specialist projects.\n\nIts exceptional compressive strength makes it particularly suited for high-load environments like inverted flat roofs, basements, car park decks, cold storage floors, and heavy-duty industrial settings. Whether you're working on a commercial project or an intensive residential build, GG300R can withstand pressure from both vehicles and equipment.\n\n\u003ch3\u003eMoisture Resistance and Long-Term Performance\u003c\/h3\u003e\nThanks to its minimal water absorption and resistance to ground moisture, Kingspan GreenGuard GG300R maintains its thermal integrity in damp and below-ground conditions. It’s also designed to handle freeze-thaw cycles without degradation, making it an excellent choice for external insulation beneath waterproofing membranes or green roof systems.\n\nThe board is easy to install, lightweight yet strong, and compatible with most common building materials and finishes.\n\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\nKingspan GG300R comes in multiple thickness options to suit your specification needs:\n\n30mm (1250mm x 600mm) – covers 10.5m² per Pack\n\n40mm (1250mm x 600mm) – covers 7.5m² per Pack\n\n50mm (1250mm x 600mm) – covers 6m² per Pack\n\n60mm (1250mm x 600mm) – covers 5.25m² per Pack\n\n80mm (1250mm x 600mm) – covers 3.75m² per Pack\n\n100mm (1250mm x 600mm) – covers 3m² per Pack\n\n120mm (1250mm x 600mm) – covers 2.25m² per Pack\n\n150mm (1250mm x 600mm) – covers 1.5m² per Pack\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\nRigid XPS insulation for high-load bearing applications\n\nThermal conductivity of 0.033 W\/mK\n\nWithstands vehicle and heavy equipment loads\n\nExcellent resistance to moisture and ground penetration\n\nFreeze-thaw resistant for long-term durability\n\nCompatible with green and inverted roof systems\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003e1. Can Kingspan GG300R be used below ground?\u003c\/h4\u003e Yes, it is ideal for below-ground applications like **basement walls and floors** due to its moisture resistance and compressive strength. \u003ch4\u003e2. Is this insulation suitable for car parks or industrial floors?\u003c\/h4\u003e Absolutely. GG300R is designed to handle **heavy-duty loads**, making it perfect for areas that experience frequent vehicle traffic or industrial use. \u003ch4\u003e3. Does this insulation absorb water over time?\u003c\/h4\u003e No, GG300R is designed with **very low water absorption** and maintains performance even in wet or humid conditions, including freeze-thaw environments.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/insulation\"\u003einsulation\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/insulation-board\"\u003einsulation board\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"30mm 1250mm x 600mm 10.5m2 (14 Pack)","offer_id":51553823916374,"sku":"162171","price":78.49,"currency_code":"GBP","in_stock":true},{"title":"40mm 1250mm x 600mm 7.5m2 (10 Pack)","offer_id":51553823949142,"sku":"162172","price":74.63,"currency_code":"GBP","in_stock":true},{"title":"50mm 1250mm x 600mm 6m2 (8 Pack)","offer_id":51553823981910,"sku":"162173","price":74.7,"currency_code":"GBP","in_stock":true},{"title":"60mm 1250mm x 600mm 5.25m2 (7 Pack)","offer_id":51553824014678,"sku":"162174","price":78.36,"currency_code":"GBP","in_stock":true},{"title":"80mm 1250mm x 600mm 3.75m2 (5 Pack)","offer_id":51553824047446,"sku":"162175","price":74.63,"currency_code":"GBP","in_stock":true},{"title":"100mm 1250mm x 600mm 3m2 (4 Pack)","offer_id":51553824080214,"sku":"162176","price":74.66,"currency_code":"GBP","in_stock":true},{"title":"120mm 1250mm x 600mm 2.25m2 (3 Pack)","offer_id":51553824112982,"sku":"162177","price":67.19,"currency_code":"GBP","in_stock":true},{"title":"150mm 1250mm x 600mm 1.5m2 (2 Pack)","offer_id":51553824145750,"sku":"162178","price":55.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/kingspun-greenguard-gg300r-xps-insulation-board-4021549.jpg?v=1772656524","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/kingspun-greenguard-gg300r-xps-insulation-board","provider":"JJ Building Materials","version":"1.0","type":"link"}