75mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 11.52m2 per pack
75mm Kingspan Kooltherm K103 Floorboard is supplied here by the pack for insulating a full floor to a 75mm specification, with 4 boards covering 11.52m². Buying by the pack lets the order follow the floor area, so a whole ground floor can be covered and delivered in one batch rather than gathered board by board.
Each board carries a thermal resistance of 3.90 m²K/W, drawn from a fibre-free rigid thermoset phenolic core with a thermal conductivity of 0.019 W/mK. The boards measure 2400mm x 1200mm, have a square edge and are faced on both sides with glass tissue bonded during manufacture, and hold a compressive strength of 120 kPa to BS EN 826:2013. Across a pack-bought floor that means every sheet brings the same resistance and the same load rating to the build.
That uniform 120 kPa is what matters once you are covering a large area. A screed or slab loads the insulation evenly across the whole floor, and a board that holds its rated compression sheet after sheet keeps the insulated layer behaving the same from one side of the room to the other, with no soft spots where the floor above could move.
75mm Kingspan Kooltherm K103 is used in beam and dense block, suspended timber and solid concrete ground floors, laid over a damp proof membrane and installed in line with the latest Kingspan guidance and the project specification. In suspended timber floors the boards are dropped between the joists onto battens, saddle clips or nails rather than fixed over them, and the board works with underfloor heating. Ordered by the pack, a full floor's worth of insulation arrives together and goes down as one consistent layer.
Key Benefits of Kingspan Kooltherm K103:
- 75mm rigid thermoset phenolic floor board with a fibre-free insulation core.
- Thermal conductivity of 0.019 W/mK.
- Thermal resistance (R-value) of 3.90 m²K/W at 75mm.
- Compressive strength of 120 kPa to BS EN 826:2013, for use beneath a floor screed or slab.
- Square edge, faced both sides with glass tissue bonded during manufacture.
- Boards measure 2400mm x 1200mm; 4 boards per pack covering 11.52m².
- Supplied by the pack for whole-floor coverage and ordering by area.
- Suitable for beam and dense block, suspended timber and solid concrete ground floors.
- Compatible with underfloor heating.
- Reaction to fire classification of Euroclass C-s2,d0 to BS EN 13501-1:2018.
Good to know:
- In suspended timber floors the boards are dropped between the joists onto battens, saddle clips or nails, not fixed over the top of them.
- Lay the boards over a damp proof membrane of at least 1200 gauge, keeping the insulation off the subsoil.
- K103 resists the passage of water vapour but is not a vapour control layer; where it goes under a screed, run a separate lapped and taped polythene sheet as the VCL.
- The 3.90 m²K/W figure is the board's thermal resistance, not the finished floor U-value; confirm the U-value against the full build-up before you order the packs.
- Need more depth than 75mm? Boards can be doubled up in a break-bonded pattern so no two joints align.
Only need a handful of boards? The same 75mm board is sold as single sheets here.
For a full ground floor going in at 75mm, the four-board packs let you order straight off the floor area and cover the job from one delivery.
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75mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 11.52m2 per pack
75mm Kingspan Kooltherm K103 Floorboard Insulation 2.4m x 1.2m - 11.52m2 per pack
75mm Kingspan Kooltherm K103 Floorboard is supplied here by the pack for insulating a full floor to a 75mm specification, with 4 boards covering 11.52m². Buying by the pack lets the order follow the floor area, so a whole ground floor can be covered and delivered in one batch rather than gathered board by board.
Each board carries a thermal resistance of 3.90 m²K/W, drawn from a fibre-free rigid thermoset phenolic core with a thermal conductivity of 0.019 W/mK. The boards measure 2400mm x 1200mm, have a square edge and are faced on both sides with glass tissue bonded during manufacture, and hold a compressive strength of 120 kPa to BS EN 826:2013. Across a pack-bought floor that means every sheet brings the same resistance and the same load rating to the build.
That uniform 120 kPa is what matters once you are covering a large area. A screed or slab loads the insulation evenly across the whole floor, and a board that holds its rated compression sheet after sheet keeps the insulated layer behaving the same from one side of the room to the other, with no soft spots where the floor above could move.
75mm Kingspan Kooltherm K103 is used in beam and dense block, suspended timber and solid concrete ground floors, laid over a damp proof membrane and installed in line with the latest Kingspan guidance and the project specification. In suspended timber floors the boards are dropped between the joists onto battens, saddle clips or nails rather than fixed over them, and the board works with underfloor heating. Ordered by the pack, a full floor's worth of insulation arrives together and goes down as one consistent layer.
Key Benefits of Kingspan Kooltherm K103:
- 75mm rigid thermoset phenolic floor board with a fibre-free insulation core.
- Thermal conductivity of 0.019 W/mK.
- Thermal resistance (R-value) of 3.90 m²K/W at 75mm.
- Compressive strength of 120 kPa to BS EN 826:2013, for use beneath a floor screed or slab.
- Square edge, faced both sides with glass tissue bonded during manufacture.
- Boards measure 2400mm x 1200mm; 4 boards per pack covering 11.52m².
- Supplied by the pack for whole-floor coverage and ordering by area.
- Suitable for beam and dense block, suspended timber and solid concrete ground floors.
- Compatible with underfloor heating.
- Reaction to fire classification of Euroclass C-s2,d0 to BS EN 13501-1:2018.
Good to know:
- In suspended timber floors the boards are dropped between the joists onto battens, saddle clips or nails, not fixed over the top of them.
- Lay the boards over a damp proof membrane of at least 1200 gauge, keeping the insulation off the subsoil.
- K103 resists the passage of water vapour but is not a vapour control layer; where it goes under a screed, run a separate lapped and taped polythene sheet as the VCL.
- The 3.90 m²K/W figure is the board's thermal resistance, not the finished floor U-value; confirm the U-value against the full build-up before you order the packs.
- Need more depth than 75mm? Boards can be doubled up in a break-bonded pattern so no two joints align.
Only need a handful of boards? The same 75mm board is sold as single sheets here.
For a full ground floor going in at 75mm, the four-board packs let you order straight off the floor area and cover the job from one delivery.
Original: $356.42
-65%$356.42
$124.75Product Information
Product Information
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Description
75mm Kingspan Kooltherm K103 Floorboard is supplied here by the pack for insulating a full floor to a 75mm specification, with 4 boards covering 11.52m². Buying by the pack lets the order follow the floor area, so a whole ground floor can be covered and delivered in one batch rather than gathered board by board.
Each board carries a thermal resistance of 3.90 m²K/W, drawn from a fibre-free rigid thermoset phenolic core with a thermal conductivity of 0.019 W/mK. The boards measure 2400mm x 1200mm, have a square edge and are faced on both sides with glass tissue bonded during manufacture, and hold a compressive strength of 120 kPa to BS EN 826:2013. Across a pack-bought floor that means every sheet brings the same resistance and the same load rating to the build.
That uniform 120 kPa is what matters once you are covering a large area. A screed or slab loads the insulation evenly across the whole floor, and a board that holds its rated compression sheet after sheet keeps the insulated layer behaving the same from one side of the room to the other, with no soft spots where the floor above could move.
75mm Kingspan Kooltherm K103 is used in beam and dense block, suspended timber and solid concrete ground floors, laid over a damp proof membrane and installed in line with the latest Kingspan guidance and the project specification. In suspended timber floors the boards are dropped between the joists onto battens, saddle clips or nails rather than fixed over them, and the board works with underfloor heating. Ordered by the pack, a full floor's worth of insulation arrives together and goes down as one consistent layer.
Key Benefits of Kingspan Kooltherm K103:
- 75mm rigid thermoset phenolic floor board with a fibre-free insulation core.
- Thermal conductivity of 0.019 W/mK.
- Thermal resistance (R-value) of 3.90 m²K/W at 75mm.
- Compressive strength of 120 kPa to BS EN 826:2013, for use beneath a floor screed or slab.
- Square edge, faced both sides with glass tissue bonded during manufacture.
- Boards measure 2400mm x 1200mm; 4 boards per pack covering 11.52m².
- Supplied by the pack for whole-floor coverage and ordering by area.
- Suitable for beam and dense block, suspended timber and solid concrete ground floors.
- Compatible with underfloor heating.
- Reaction to fire classification of Euroclass C-s2,d0 to BS EN 13501-1:2018.
Good to know:
- In suspended timber floors the boards are dropped between the joists onto battens, saddle clips or nails, not fixed over the top of them.
- Lay the boards over a damp proof membrane of at least 1200 gauge, keeping the insulation off the subsoil.
- K103 resists the passage of water vapour but is not a vapour control layer; where it goes under a screed, run a separate lapped and taped polythene sheet as the VCL.
- The 3.90 m²K/W figure is the board's thermal resistance, not the finished floor U-value; confirm the U-value against the full build-up before you order the packs.
- Need more depth than 75mm? Boards can be doubled up in a break-bonded pattern so no two joints align.
Only need a handful of boards? The same 75mm board is sold as single sheets here.
For a full ground floor going in at 75mm, the four-board packs let you order straight off the floor area and cover the job from one delivery.
