{"product_id":"grp-expansion-trim-e280-3m","title":"GRP Expansion Trim E280  – 3m","description":"\u003ch3\u003eExpansion joint trim for large GRP flat roof installations.\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eE280 GRP Expansion Trim\u003c\/strong\u003e is designed to accommodate structural and thermal movement in larger fibreglass flat roof systems.\u003c\/p\u003e\n\n\u003cp\u003eInstalled over a 25mm expansion gap in the deck, it forms a controlled movement joint within the GRP laminate and helps prevent stress cracking across long roof runs.\u003c\/p\u003e\n\n\u003cp\u003eCompatible with \u003cstrong\u003e\u003ca href=\"\/products\/restec-grp-roof-1010-base-coat-resin\"\u003eGRPROOF 1010\u003c\/a\u003e\u003c\/strong\u003e, \u003cstrong\u003e\u003ca href=\"\/products\/flexitec-resin\"\u003eFlexitec\u003c\/a\u003e\u003c\/strong\u003e, and standard polyester GRP systems.\u003c\/p\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    When It’s Used\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eRoof areas exceeding approximately \u003cstrong\u003e50m²\u003c\/strong\u003e\n\u003c\/li\u003e\n      \u003cli\u003eRoof lengths over \u003cstrong\u003e10 metres\u003c\/strong\u003e\n\u003c\/li\u003e\n      \u003cli\u003eProjects where structural movement must be managed\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eGRP laminates are rigid once cured. On larger roofs, provision for movement is essential.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    Why It Matters\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eWithout expansion provision, movement within the deck can transfer directly into the laminate, leading to stress fractures over time.\u003c\/p\u003e\n\n    \u003cp\u003eThe E280 trim:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eIntroduces a controlled expansion joint\u003c\/li\u003e\n      \u003cli\u003eReduces stress build-up within the laminate\u003c\/li\u003e\n      \u003cli\u003eImproves long-term durability\u003c\/li\u003e\n      \u003cli\u003eSupports compliance with GRP installation guidelines\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003cp\u003eIt forms part of the structural detailing on larger installations.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    Installation Notes\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eLeave a \u003cstrong\u003e25mm expansion gap\u003c\/strong\u003e between OSB boards.\u003c\/li\u003e\n      \u003cli\u003eApply \u003cstrong\u003e\u003ca href=\"\/products\/pu-sealant-for-grp-trims\"\u003ePU trim adhesive\u003c\/a\u003e\u003c\/strong\u003e to the underside before fixing.\u003c\/li\u003e\n      \u003cli\u003ePosition the E280 centrally over the gap.\u003c\/li\u003e\n      \u003cli\u003eMechanically fix into the deck either side of the joint.\u003c\/li\u003e\n      \u003cli\u003eReinforce the trim-to-deck joint either side of the trim using CSM and base resin.\u003c\/li\u003e\n      \u003cli\u003eConsolidate fully and apply top coat as part of the system.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003cp\u003eThe expansion gap beneath the trim allows deck movement while the laminate above remains controlled.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    Specification\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eProfile: E280 Expansion Trim\u003c\/li\u003e\n      \u003cli\u003eLength: 3 metres\u003c\/li\u003e\n      \u003cli\u003eApplication: Expansion joint for GRP roofing systems\u003c\/li\u003e\n      \u003cli\u003eMaterial: Hot-pressed GRP\u003c\/li\u003e\n      \u003cli\u003eColour: Grey\u003c\/li\u003e\n      \u003cli\u003eCompatible With: GRPROOF 1010 \u0026amp; Flexitec\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    Summary\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eThe E280 GRP Expansion Trim provides the necessary movement joint detail for larger fibreglass flat roofs. Installed over a 25mm deck gap, it reduces stress within the laminate and helps prevent cracking on extended roof areas.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"The Flat Roofing Shop","offers":[{"title":"Default Title","offer_id":56720580215115,"sku":"PG-Trim-Expansion","price":17.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/4054\/9451\/files\/grp-expansion-trim.jpg?v=1774181140","url":"https:\/\/theflatroofingshop.co.uk\/products\/grp-expansion-trim-e280-3m","provider":"The Flat Roofing Shop","version":"1.0","type":"link"}