{"product_id":"12mm-rcm-y-wall-2400mm-x-1200mm-92-16m2-pallet","title":"12mm RCM Y Wall Calcium Silicate Board 2400mm x 1200mm","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eRCM Y-Wall Calcium Silicate Board measuring 2400mm x 1200mm x 12mm is a high-performance, non-combustible sheathing board designed for use behind façade systems, rainscreens, and cladding. \u003cbr\u003e\u003cbr\u003eManufactured from calcium silicate reinforced with selected fibres, it provides a dimensionally stable substrate with excellent fire resistance and structural rigidity.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eThe board is suitable for both steel and timber frame applications, forming a robust external sheathing layer that maintains integrity under high temperature and moisture variations. Its smooth, dense surface resists delamination, impact, and weather exposure during construction, ensuring long-term performance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eRCM Y-Wall is engineered for use as part of ventilated façade systems and has been independently tested to meet fire and durability standards. The 12mm thickness provides enhanced stiffness and strength, making it suitable for medium to high-rise projects where wind loading and mechanical fixing demands are greater. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-density calcium silicate composition\u003c\/strong\u003e: Provides excellent dimensional stability, durability, and structural rigidity under varying conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-combustible performance\u003c\/strong\u003e: Classified to A1 under BS EN 13501-1, ensuring full compliance for use in façade and fire-rated systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and weather resistant\u003c\/strong\u003e: Maintains strength and flatness when exposed to moisture or changing site conditions during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile sheathing use\u003c\/strong\u003e: Suitable for both steel and timber frame construction behind cladding or rainscreen façades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth surface finish\u003c\/strong\u003e: Accepts coatings, membranes, or insulation systems without surface preparation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact and edge strength\u003c\/strong\u003e: Resists damage during handling, fixing, and service life for reliable façade performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow movement characteristics\u003c\/strong\u003e: Reduces risk of cracking or joint stress under thermal or humidity variation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard size 2400mm x 1200mm x 12mm\u003c\/strong\u003e: Provides optimal coverage with fewer joints, improving façade continuity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal sheathing\u003c\/strong\u003e: Forms a stable backing layer behind rainscreen cladding or ventilated façades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimber and steel frame walls\u003c\/strong\u003e: Provides a fire-resistant substrate for structural framing systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-rise and commercial buildings\u003c\/strong\u003e: Used in applications requiring non-combustible external wall linings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular and offsite construction\u003c\/strong\u003e: Ideal for factory-assembled wall panels due to dimensional accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal fire protection\u003c\/strong\u003e: Can be used where internal partitions require Class A1 fire-rated performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixing\u003c\/strong\u003e: Secure using corrosion-resistant screws suitable for calcium silicate boards, following manufacturer spacing guidelines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport framing\u003c\/strong\u003e: Ensure adequate structural support with framing centres designed to prevent board deflection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoint treatment\u003c\/strong\u003e: Leave appropriate expansion gaps and seal joints according to system design or façade specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling\u003c\/strong\u003e: Lift and store flat on level supports to avoid edge chipping and surface stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting\u003c\/strong\u003e: Use a fine-toothed saw or power tool with dust extraction; always wear appropriate PPE.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather protection\u003c\/strong\u003e: Protect installed boards prior to cladding installation to maintain dry conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial specification\u003c\/strong\u003e: Autoclaved calcium silicate reinforced with mineral fibres and fillers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire classification\u003c\/strong\u003e: A1 non-combustible under BS EN 13501-1.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture resistance\u003c\/strong\u003e: Suitable for external sheathing in ventilated wall systems; not intended as a weatherproof finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal performance\u003c\/strong\u003e: Low thermal conductivity contributes to energy-efficient wall systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional stability\u003c\/strong\u003e: Maintains flatness and integrity under changes in temperature and humidity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Install in accordance with RCM guidelines and façade manufacturer specifications to ensure full compliance with building regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"RCM","offers":[{"title":"Default Title","offer_id":53771541282927,"sku":"4008030","price":56.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/face_and_edge_of_rcm_y_wall_board.jpg?v=1783758712","url":"https:\/\/supplyyard.co.uk\/products\/12mm-rcm-y-wall-2400mm-x-1200mm-92-16m2-pallet","provider":"Supply Yard","version":"1.0","type":"link"}