130mm Celotex XR4130 PIR Insulation Board 2.4m x 1.2m - 2.88m2 per board
130mm Celotex XR4130 is a rigid polyisocyanurate (PIR) insulation board for floor and roof build-ups that need more resistance than the mid-range thicknesses give while staying a single cut-to-fit layer. At 130mm it answers the stricter U-value targets that come up on solid floors and warm roofs, where the specification has moved past 110mm and 120mm but a second board is not wanted.
Each board measures 2400mm x 1200mm, covers 2.88m² and is sold individually. With a declared thermal conductivity of 0.022 W/mK it reaches a thermal resistance of 5.90 m²K/W, closing on the 6.00 mark and sitting two steps above the entry XR4110, at a maximum board weight of around 5.32 kg per square metre. The rigid PIR core is faced both sides with a low-emissivity aluminium foil that improves performance against a sealed cavity air space, and the square edges butt up for a continuous, tight-jointed layer.
What the extra 10mm over the 120mm board buys is margin: 130mm lifts single-layer resistance to 5.90 m²K/W, so a floor or roof can clear a tighter U-value on one board rather than two, keeping the build-up depth and the number of taped joints down.
XR4130 works as a single cut-to-fit layer in solid and suspended floors, in warm flat and pitched roofs between or under rafters and joists, and across masonry walls and timber- and steel-framed systems. Install it in line with the latest Celotex technical guidance, the project specification and current Building Regulations, including fire requirements and the height limit on external wall use. In wall build-ups it should be covered with a fire-rated lining such as 12.5mm plasterboard. Where a project calls for a firmer floor or roof U-value without a doubled layer, the 130mm board carries it in one pass.
Key Benefits of 130mm Celotex XR4130:
- 130mm rigid polyisocyanurate (PIR) board, a deeper single-layer option for floors and roofs working to stricter U-value targets.
- Thermal resistance (R-value) of 5.90 m²K/W, closing on the 6.00 mark for tighter specifications.
- Declared thermal conductivity of 0.022 W/mK, delivering that resistance in a 130mm depth.
- Meets a stricter floor or roof U-value in a single cut-to-fit layer, avoiding a second board and the extra joints with it.
- Suits solid and suspended floors, warm flat and pitched roofs, masonry walls and timber- and steel-framed systems.
- Low-emissivity aluminium foil facings on both sides, improving performance against sealed and cavity air spaces.
- Square edges for flush, tight joints and a continuous insulation layer.
- Manufactured with a blowing agent of zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP), free of CFCs and HCFCs.
- Supplied as a single 2400mm x 1200mm board covering 2.88m², at a maximum board weight of around 5.32 kg per square metre.
- BBA certified (Certificate 25/7318) for defined pitched roof, dry lining and floor applications.
Good to know:
- Boards measure 2400mm x 1200mm and are sold individually, each covering 2.88m².
- The foil facing is printed on one side only: fit the board with the plain face towards the cavity for the rated thermal performance.
- The foil facing is not a vapour control layer; many floor and roof build-ups still need a separate VCL to manage interstitial condensation.
- In wall applications the board should be covered with a fire-rated lining, such as 12.5mm plasterboard.
- Celotex XR4000 should not be used in the external walls of buildings over 11 metres in height; check current Building Regulations for your project.
- PIR is moisture resistant but not waterproof: store boards flat, off the ground, dry and out of prolonged sunlight.
- Insulation UK offers a bespoke cutting service, supplying boards cut to your sizes to reduce waste and on-site mess.
When a floor or roof specification tightens but the build still has to come together in one layer, 130mm Celotex XR4130 brings 5.90 m²K/W to the line, holding the target without the depth and joints of a doubled board.
Important Notice: Please be aware that during periods of high demand, we reserve the right to provide alternative brands that meet the same specifications and quality standards as the products you originally ordered.
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130mm Celotex XR4130 PIR Insulation Board 2.4m x 1.2m - 2.88m2 per board
130mm Celotex XR4130 PIR Insulation Board 2.4m x 1.2m - 2.88m2 per board
130mm Celotex XR4130 is a rigid polyisocyanurate (PIR) insulation board for floor and roof build-ups that need more resistance than the mid-range thicknesses give while staying a single cut-to-fit layer. At 130mm it answers the stricter U-value targets that come up on solid floors and warm roofs, where the specification has moved past 110mm and 120mm but a second board is not wanted.
Each board measures 2400mm x 1200mm, covers 2.88m² and is sold individually. With a declared thermal conductivity of 0.022 W/mK it reaches a thermal resistance of 5.90 m²K/W, closing on the 6.00 mark and sitting two steps above the entry XR4110, at a maximum board weight of around 5.32 kg per square metre. The rigid PIR core is faced both sides with a low-emissivity aluminium foil that improves performance against a sealed cavity air space, and the square edges butt up for a continuous, tight-jointed layer.
What the extra 10mm over the 120mm board buys is margin: 130mm lifts single-layer resistance to 5.90 m²K/W, so a floor or roof can clear a tighter U-value on one board rather than two, keeping the build-up depth and the number of taped joints down.
XR4130 works as a single cut-to-fit layer in solid and suspended floors, in warm flat and pitched roofs between or under rafters and joists, and across masonry walls and timber- and steel-framed systems. Install it in line with the latest Celotex technical guidance, the project specification and current Building Regulations, including fire requirements and the height limit on external wall use. In wall build-ups it should be covered with a fire-rated lining such as 12.5mm plasterboard. Where a project calls for a firmer floor or roof U-value without a doubled layer, the 130mm board carries it in one pass.
Key Benefits of 130mm Celotex XR4130:
- 130mm rigid polyisocyanurate (PIR) board, a deeper single-layer option for floors and roofs working to stricter U-value targets.
- Thermal resistance (R-value) of 5.90 m²K/W, closing on the 6.00 mark for tighter specifications.
- Declared thermal conductivity of 0.022 W/mK, delivering that resistance in a 130mm depth.
- Meets a stricter floor or roof U-value in a single cut-to-fit layer, avoiding a second board and the extra joints with it.
- Suits solid and suspended floors, warm flat and pitched roofs, masonry walls and timber- and steel-framed systems.
- Low-emissivity aluminium foil facings on both sides, improving performance against sealed and cavity air spaces.
- Square edges for flush, tight joints and a continuous insulation layer.
- Manufactured with a blowing agent of zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP), free of CFCs and HCFCs.
- Supplied as a single 2400mm x 1200mm board covering 2.88m², at a maximum board weight of around 5.32 kg per square metre.
- BBA certified (Certificate 25/7318) for defined pitched roof, dry lining and floor applications.
Good to know:
- Boards measure 2400mm x 1200mm and are sold individually, each covering 2.88m².
- The foil facing is printed on one side only: fit the board with the plain face towards the cavity for the rated thermal performance.
- The foil facing is not a vapour control layer; many floor and roof build-ups still need a separate VCL to manage interstitial condensation.
- In wall applications the board should be covered with a fire-rated lining, such as 12.5mm plasterboard.
- Celotex XR4000 should not be used in the external walls of buildings over 11 metres in height; check current Building Regulations for your project.
- PIR is moisture resistant but not waterproof: store boards flat, off the ground, dry and out of prolonged sunlight.
- Insulation UK offers a bespoke cutting service, supplying boards cut to your sizes to reduce waste and on-site mess.
When a floor or roof specification tightens but the build still has to come together in one layer, 130mm Celotex XR4130 brings 5.90 m²K/W to the line, holding the target without the depth and joints of a doubled board.
Important Notice: Please be aware that during periods of high demand, we reserve the right to provide alternative brands that meet the same specifications and quality standards as the products you originally ordered.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
130mm Celotex XR4130 is a rigid polyisocyanurate (PIR) insulation board for floor and roof build-ups that need more resistance than the mid-range thicknesses give while staying a single cut-to-fit layer. At 130mm it answers the stricter U-value targets that come up on solid floors and warm roofs, where the specification has moved past 110mm and 120mm but a second board is not wanted.
Each board measures 2400mm x 1200mm, covers 2.88m² and is sold individually. With a declared thermal conductivity of 0.022 W/mK it reaches a thermal resistance of 5.90 m²K/W, closing on the 6.00 mark and sitting two steps above the entry XR4110, at a maximum board weight of around 5.32 kg per square metre. The rigid PIR core is faced both sides with a low-emissivity aluminium foil that improves performance against a sealed cavity air space, and the square edges butt up for a continuous, tight-jointed layer.
What the extra 10mm over the 120mm board buys is margin: 130mm lifts single-layer resistance to 5.90 m²K/W, so a floor or roof can clear a tighter U-value on one board rather than two, keeping the build-up depth and the number of taped joints down.
XR4130 works as a single cut-to-fit layer in solid and suspended floors, in warm flat and pitched roofs between or under rafters and joists, and across masonry walls and timber- and steel-framed systems. Install it in line with the latest Celotex technical guidance, the project specification and current Building Regulations, including fire requirements and the height limit on external wall use. In wall build-ups it should be covered with a fire-rated lining such as 12.5mm plasterboard. Where a project calls for a firmer floor or roof U-value without a doubled layer, the 130mm board carries it in one pass.
Key Benefits of 130mm Celotex XR4130:
- 130mm rigid polyisocyanurate (PIR) board, a deeper single-layer option for floors and roofs working to stricter U-value targets.
- Thermal resistance (R-value) of 5.90 m²K/W, closing on the 6.00 mark for tighter specifications.
- Declared thermal conductivity of 0.022 W/mK, delivering that resistance in a 130mm depth.
- Meets a stricter floor or roof U-value in a single cut-to-fit layer, avoiding a second board and the extra joints with it.
- Suits solid and suspended floors, warm flat and pitched roofs, masonry walls and timber- and steel-framed systems.
- Low-emissivity aluminium foil facings on both sides, improving performance against sealed and cavity air spaces.
- Square edges for flush, tight joints and a continuous insulation layer.
- Manufactured with a blowing agent of zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP), free of CFCs and HCFCs.
- Supplied as a single 2400mm x 1200mm board covering 2.88m², at a maximum board weight of around 5.32 kg per square metre.
- BBA certified (Certificate 25/7318) for defined pitched roof, dry lining and floor applications.
Good to know:
- Boards measure 2400mm x 1200mm and are sold individually, each covering 2.88m².
- The foil facing is printed on one side only: fit the board with the plain face towards the cavity for the rated thermal performance.
- The foil facing is not a vapour control layer; many floor and roof build-ups still need a separate VCL to manage interstitial condensation.
- In wall applications the board should be covered with a fire-rated lining, such as 12.5mm plasterboard.
- Celotex XR4000 should not be used in the external walls of buildings over 11 metres in height; check current Building Regulations for your project.
- PIR is moisture resistant but not waterproof: store boards flat, off the ground, dry and out of prolonged sunlight.
- Insulation UK offers a bespoke cutting service, supplying boards cut to your sizes to reduce waste and on-site mess.
When a floor or roof specification tightens but the build still has to come together in one layer, 130mm Celotex XR4130 brings 5.90 m²K/W to the line, holding the target without the depth and joints of a doubled board.
Important Notice: Please be aware that during periods of high demand, we reserve the right to provide alternative brands that meet the same specifications and quality standards as the products you originally ordered.
