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Water Underfloor Heating Insulation

Competitive Trade Pricing with quantity discounts. Online supplier of Wet floor Heating Insulation Boards.

About

Water insulation boards are an energy and cost-saving solution for underfloor heating systems using hot water. They are made of high-grade polystyrene and have a 200-micron aluminum heat diffuser for enhanced fire, rot, and corrosion resistance. Additionally, our boards provide excellent acoustic insulation, reducing noise levels in the home. They are specifically designed for safe use and offer outstanding thermal performance.

Have a browse of our stock and filter by thickness or coverage on the left-hand side of the page. If you’d like to talk through the suitability of some Insulation Boards for your project, or get a quantity discount quotation please call us on 02039519012 , email sales@insulationstoreonline.co.uk or Live Chat - Lowest UK Prices.

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16 products
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150mm Unilin ECO360 ECO/MA Sarking PIR Insulation Board ( Pack of 2 ) - image
150mm Unilin ECO360 ECO/MA Sarking PIR Insulation Board ( Pack of 2 )
Bio enhanced high performance PIR Insulation Pack Length: 4800mmPack Width: 2400mmPack coverage: 5.76m2Thickness: 150mmQuantity: 2 Sheets
Last known price: £290.14
£ 348.17 Inc VAT
125mm Unilin ECO360 ECO/MA Sarking PIR Insulation Board ( Pack of 3 ) - image
125mm Unilin ECO360 ECO/MA Sarking PIR Insulation Board ( Pack of 3 )
Bio enhanced high performance PIR Insulation Pack Length: 7200mmPack Width: 3600mmPack coverage: 8.64m2Thickness: 125mmQuantity: 3 Sheets
Last known price: £241.22
£ 289.46 Inc VAT
100mm Unilin ECO360 ECO/MA Sarking PIR Insulation Board ( Pack of 4 ) - image
100mm Unilin ECO360 ECO/MA Sarking PIR Insulation Board ( Pack of 4 )
Bio enhanced high performance PIR Insulation Pack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 100mmQuantity: 4 Sheets
Last known price: £176.84
£ 212.21 Inc VAT
150mm Unilin ECO360 MA Roof PIR Insulation Board ( Pack of 2 ) - image
150mm Unilin ECO360 MA Roof PIR Insulation Board ( Pack of 2 )
Bio enhanced high performance PIR Insulation Pack Length: 4800mmPack Width: 2400mmPack coverage: 5.76m2Thickness: 150mmQuantity: 2 Sheets
Last known price: £392.55
£ 471.06 Inc VAT
125mm Unilin ECO360 MA Roof PIR Insulation Board ( Pack of 3 ) - image
125mm Unilin ECO360 MA Roof PIR Insulation Board ( Pack of 3 )
Bio enhanced high performance PIR Insulation Pack Length: 7200mmPack Width: 3600mmPack coverage: 8.64m2Thickness: 125mmQuantity: 3 Sheets
Last known price: £325.24
£ 390.29 Inc VAT
100mm Unilin ECO360 MA Roof PIR Insulation Board ( Pack of 4 ) - image
100mm Unilin ECO360 MA Roof PIR Insulation Board ( Pack of 4 )
Bio enhanced high performance PIR Insulation Pack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 100mmQuantity: 4 Sheets
Last known price: £176.84
£ 212.21 Inc VAT
150mm Unilin ECO360 ECO/MA Floor PIR Insulation Board ( Pack of 2 ) - image
150mm Unilin ECO360 ECO/MA Floor PIR Insulation Board ( Pack of 2 )
Bio enhanced high performance PIR Insulation Pack Length: 4800mmPack Width: 2400mmPack coverage: 5.76m2Thickness: 150mmQuantity: 2 Sheets
Last known price: £420.94
£ 505.13 Inc VAT
125mm Unilin ECO360 ECO/MA Floor PIR Insulation Board ( Pack of 3 ) - image
125mm Unilin ECO360 ECO/MA Floor PIR Insulation Board ( Pack of 3 )
Bio enhanced high performance PIR Insulation Pack Length: 7200mmPack Width: 3600mmPack coverage: 8.64m2Thickness: 125mmQuantity: 3 Sheets
Last known price: £435.88
£ 523.06 Inc VAT
100mm Unilin ECO360 ECO/MA Floor PIR Insulation Board ( Pack of 4 ) - image
100mm Unilin ECO360 ECO/MA Floor PIR Insulation Board ( Pack of 4 )
Bio enhanced high performance PIR Insulation Pack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 100mmQuantity: 4 Sheets
Last known price: £342.22
£ 410.66 Inc VAT
120mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 3 ) - image
120mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 3 )
Rigid Phenolic Floor Insulation Board Pack Length: 7200mmPack Width: 3600mmPack coverage: 8.64m2Thickness: 120mmQuantity: Pack Of 3
Last known price: £478.93
£ 574.72 Inc VAT
100mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 4 ) - image
100mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 4 )
Rigid Phenolic Floor Insulation Board Pack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 100mmQuantity: Pack Of 4
Last known price: £518.61
£ 622.33 Inc VAT
80mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 4 ) - image
80mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 4 )
Rigid Phenolic Floor Insulation Board Pack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 80mmQuantity: Pack Of 4
Last known price: £405.24
£ 486.29 Inc VAT
75mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 4 ) - image
75mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 4 )
Rigid Phenolic Floor Insulation Board Pack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 75mmQuantity: Pack Of 4
Last known price: £375.14
£ 450.17 Inc VAT
60mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 5 ) - image
60mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 5 )
Rigid Phenolic Floor Insulation Board Pack Length: 12000mmPack Width: 6000mmPack coverage: 14.40m2Thickness: 60mmQuantity: Pack Of 5
Last known price: £398.11
£ 477.73 Inc VAT
50mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 6 ) - image
50mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 6 )
Rigid Phenolic Floor Insulation Board Pack Length: 14400mmPack Width: 7200mmPack coverage: 17.28m2Thickness: 50mmQuantity: Pack Of 6
Last known price: £381.25
£ 457.50 Inc VAT
40mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 7 ) - image
40mm Unilin Safe-R SR/UF Phenolic Floor Insulation Board ( Pack of 7 )
Rigid Phenolic Floor Insulation Board Pack Length: 16800mmPack Width: 8400mmPack coverage: 20.16m2Thickness: 40mmQuantity: Pack Of 7
Last known price: £415.77
£ 498.92 Inc VAT
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