40mm EPS External Wall Insulation 1200mm x 600mm - 0.72m2 per sheet
Sold in packs of 30
40mm EPS External Wall Insulation is a graphite-enhanced expanded polystyrene (EPS) board that marks the point where the range starts to work as a genuine thermal upgrade rather than a detailing board. At 40mm it adds a worthwhile layer of resistance to a solid wall, suited to elevations where you want a real improvement but a full field depth would push the wall out too far.
Each board measures 1200mm x 600mm and covers 0.72m², supplied 30 boards to a pack for 21.60m² of coverage. It carries a declared thermal conductivity of 0.030 W/mK, a PlusTherm 70 grade with 70 kPa compressive strength at 10% deformation, and a calculated thermal resistance of 1.30 m²K/W* at 40mm. That figure comes from the graphite-enhanced core, which reaches it in a slimmer board than standard white EPS would need for the same result.
EPS is a closed-cell material, so the board resists water absorption rather than soaking it up. On an external wall that matters twice over: the insulation holds its thermal performance even on exposed, weather-facing elevations, and by keeping the cold masonry behind a warm layer it helps push the dew point outward and cut the condensation risk on the inside face. Finished within a render system, it gives the wall a clean, weather-tight outer skin.
40mm EPS External Wall Insulation is bonded to masonry or timber-backed substrates with adhesive, mechanically fixed, or both, then rasped and finished within a designed render system, installed to SPI's guidance and the render system provider's specification. It suits solid brickwork, timber frame and steel frame construction on wall applications up to 18m, and is a sensible pick for solid-wall thermal upgrades on houses and smaller commercial buildings. As with all EPS, the finished fire performance and durability are properties of the complete system, not the board on its own.
Key Benefits of 40mm EPS External Wall Insulation:
- 40mm graphite-enhanced EPS board delivering a measurable thermal upgrade to solid walls.
- Calculated thermal resistance of 1.30 m²K/W* at 40mm.
- Declared thermal conductivity of 0.030 W/mK, reaching that resistance in less depth than standard white EPS.
- Closed-cell structure that resists water absorption and holds performance on exposed elevations.
- Insulates the external face, helping to push the dew point out and reduce condensation risk.
- PlusTherm 70 grade with 70 kPa compressive strength at 10% deformation.
- Compatible with adhesive and mechanically fixed EWI systems and thin-coat renders.
- Suitable for solid brickwork, timber frame and steel frame construction.
- Reaction to fire Euroclass E to BS EN 13501-1, with no loss of thermal performance over time.
- 100% recyclable with a BRE Green Guide rating A+, and no CFCs, HCFCs or HFCs (zero GWP).
Good to know:
- Grade: PlusTherm 70: thermal conductivity 0.030 W/mK; compressive strength 70 kPa at 10%.
- Board size 1200mm x 600mm (0.72m²): thickness 40mm; 30 boards per pack (21.60m²).
- Manufactured to BS EN 13163:2012+A2:2016: ISO 9001 and ISO 14001 certified.
- PVC cables must be protected within a suitable conduit to prevent plasticiser migration.
- Store flat on a firm, level base, protected from sunlight and UV exposure.
- Always refer to the Stylite EWI datasheet and system provider's guidance before installing.
Where a solid wall needs a genuine lift rather than a token layer, 40mm EPS External Wall Insulation is the point in the range where the numbers start to earn their keep.
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40mm EPS External Wall Insulation 1200mm x 600mm - 0.72m2 per sheet
40mm EPS External Wall Insulation 1200mm x 600mm - 0.72m2 per sheet
Sold in packs of 30
40mm EPS External Wall Insulation is a graphite-enhanced expanded polystyrene (EPS) board that marks the point where the range starts to work as a genuine thermal upgrade rather than a detailing board. At 40mm it adds a worthwhile layer of resistance to a solid wall, suited to elevations where you want a real improvement but a full field depth would push the wall out too far.
Each board measures 1200mm x 600mm and covers 0.72m², supplied 30 boards to a pack for 21.60m² of coverage. It carries a declared thermal conductivity of 0.030 W/mK, a PlusTherm 70 grade with 70 kPa compressive strength at 10% deformation, and a calculated thermal resistance of 1.30 m²K/W* at 40mm. That figure comes from the graphite-enhanced core, which reaches it in a slimmer board than standard white EPS would need for the same result.
EPS is a closed-cell material, so the board resists water absorption rather than soaking it up. On an external wall that matters twice over: the insulation holds its thermal performance even on exposed, weather-facing elevations, and by keeping the cold masonry behind a warm layer it helps push the dew point outward and cut the condensation risk on the inside face. Finished within a render system, it gives the wall a clean, weather-tight outer skin.
40mm EPS External Wall Insulation is bonded to masonry or timber-backed substrates with adhesive, mechanically fixed, or both, then rasped and finished within a designed render system, installed to SPI's guidance and the render system provider's specification. It suits solid brickwork, timber frame and steel frame construction on wall applications up to 18m, and is a sensible pick for solid-wall thermal upgrades on houses and smaller commercial buildings. As with all EPS, the finished fire performance and durability are properties of the complete system, not the board on its own.
Key Benefits of 40mm EPS External Wall Insulation:
- 40mm graphite-enhanced EPS board delivering a measurable thermal upgrade to solid walls.
- Calculated thermal resistance of 1.30 m²K/W* at 40mm.
- Declared thermal conductivity of 0.030 W/mK, reaching that resistance in less depth than standard white EPS.
- Closed-cell structure that resists water absorption and holds performance on exposed elevations.
- Insulates the external face, helping to push the dew point out and reduce condensation risk.
- PlusTherm 70 grade with 70 kPa compressive strength at 10% deformation.
- Compatible with adhesive and mechanically fixed EWI systems and thin-coat renders.
- Suitable for solid brickwork, timber frame and steel frame construction.
- Reaction to fire Euroclass E to BS EN 13501-1, with no loss of thermal performance over time.
- 100% recyclable with a BRE Green Guide rating A+, and no CFCs, HCFCs or HFCs (zero GWP).
Good to know:
- Grade: PlusTherm 70: thermal conductivity 0.030 W/mK; compressive strength 70 kPa at 10%.
- Board size 1200mm x 600mm (0.72m²): thickness 40mm; 30 boards per pack (21.60m²).
- Manufactured to BS EN 13163:2012+A2:2016: ISO 9001 and ISO 14001 certified.
- PVC cables must be protected within a suitable conduit to prevent plasticiser migration.
- Store flat on a firm, level base, protected from sunlight and UV exposure.
- Always refer to the Stylite EWI datasheet and system provider's guidance before installing.
Where a solid wall needs a genuine lift rather than a token layer, 40mm EPS External Wall Insulation is the point in the range where the numbers start to earn their keep.
Original: $3.57
-65%$3.57
$1.25Product Information
Product Information
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Shipping & Returns
Description
Sold in packs of 30
40mm EPS External Wall Insulation is a graphite-enhanced expanded polystyrene (EPS) board that marks the point where the range starts to work as a genuine thermal upgrade rather than a detailing board. At 40mm it adds a worthwhile layer of resistance to a solid wall, suited to elevations where you want a real improvement but a full field depth would push the wall out too far.
Each board measures 1200mm x 600mm and covers 0.72m², supplied 30 boards to a pack for 21.60m² of coverage. It carries a declared thermal conductivity of 0.030 W/mK, a PlusTherm 70 grade with 70 kPa compressive strength at 10% deformation, and a calculated thermal resistance of 1.30 m²K/W* at 40mm. That figure comes from the graphite-enhanced core, which reaches it in a slimmer board than standard white EPS would need for the same result.
EPS is a closed-cell material, so the board resists water absorption rather than soaking it up. On an external wall that matters twice over: the insulation holds its thermal performance even on exposed, weather-facing elevations, and by keeping the cold masonry behind a warm layer it helps push the dew point outward and cut the condensation risk on the inside face. Finished within a render system, it gives the wall a clean, weather-tight outer skin.
40mm EPS External Wall Insulation is bonded to masonry or timber-backed substrates with adhesive, mechanically fixed, or both, then rasped and finished within a designed render system, installed to SPI's guidance and the render system provider's specification. It suits solid brickwork, timber frame and steel frame construction on wall applications up to 18m, and is a sensible pick for solid-wall thermal upgrades on houses and smaller commercial buildings. As with all EPS, the finished fire performance and durability are properties of the complete system, not the board on its own.
Key Benefits of 40mm EPS External Wall Insulation:
- 40mm graphite-enhanced EPS board delivering a measurable thermal upgrade to solid walls.
- Calculated thermal resistance of 1.30 m²K/W* at 40mm.
- Declared thermal conductivity of 0.030 W/mK, reaching that resistance in less depth than standard white EPS.
- Closed-cell structure that resists water absorption and holds performance on exposed elevations.
- Insulates the external face, helping to push the dew point out and reduce condensation risk.
- PlusTherm 70 grade with 70 kPa compressive strength at 10% deformation.
- Compatible with adhesive and mechanically fixed EWI systems and thin-coat renders.
- Suitable for solid brickwork, timber frame and steel frame construction.
- Reaction to fire Euroclass E to BS EN 13501-1, with no loss of thermal performance over time.
- 100% recyclable with a BRE Green Guide rating A+, and no CFCs, HCFCs or HFCs (zero GWP).
Good to know:
- Grade: PlusTherm 70: thermal conductivity 0.030 W/mK; compressive strength 70 kPa at 10%.
- Board size 1200mm x 600mm (0.72m²): thickness 40mm; 30 boards per pack (21.60m²).
- Manufactured to BS EN 13163:2012+A2:2016: ISO 9001 and ISO 14001 certified.
- PVC cables must be protected within a suitable conduit to prevent plasticiser migration.
- Store flat on a firm, level base, protected from sunlight and UV exposure.
- Always refer to the Stylite EWI datasheet and system provider's guidance before installing.
Where a solid wall needs a genuine lift rather than a token layer, 40mm EPS External Wall Insulation is the point in the range where the numbers start to earn their keep.
