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Flat Roof Insulation

Competitive Trade Pricing with quantity discounts. Online supplier of Flat Roof Insulation Boards from UK top rated brands Xtratherm, Knauf, Rockwool Insulation, Isover, Ursa, Celotex, Kingspan, Superglass, Isover, loft insulation and so on.

About

A flat roof insulation system typically consists of an insulating material, a vapour barrier, a thermal break and a weatherproofing membrane. The insulating material is usually a foam, such as expanded polystyrene, that is sandwiched between the vapour barrier and the thermal break. The vapour barrier prevents moisture from passing through the insulation and into the building envelope. The thermal break prevents heat from passing through the insulation and into the building envelope.

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 02038839057 , email sales@insulationbee.co.uk or Live Chat - Lowest UK Prices.

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£ 3.51
£ 641.59
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573 products
newest
160mm Ravatherm XPS 300 SL Flat Roof Board
XPS thermal insulation boardPack Length: 2500mmPack Width: 1200mmPack coverage: 1.5m2Thickness: 160mmQuantity: 2 SheetskPa: 300kPa
Last known price:£51.29 Inc VAT (£42.74 ex VAT)
Ravatherm 145mm XPS 300 SL Flat Roof Board
XPS thermal insulation boardPack Length: 3750mmPack Width: 1800mmPack coverage: 2.25m2Thickness: 145mmQuantity: 3 SheetskPa: 300kPa
Last known price:£69.68 Inc VAT (£58.07 ex VAT)
Ravatherm 140mm XPS 300 SL Flat Roof Board
XPS thermal insulation boardPack Length: 3750mmPack Width: 1800mmPack coverage: 2.25m2Thickness: 140mmQuantity: 3 SheetskPa: 300kPa
Last known price:£69.60 Inc VAT (£58.00 ex VAT)
130mm Ravatherm XPS 300 SL Flat Roof Board
XPS thermal insulation boardPack Length: 3750mmPack Width: 1800mmPack coverage: 2.25m2Thickness: 130mmQuantity: 3 SheetskPa: 300kPa
Last known price:£63.29 Inc VAT (£52.74 ex VAT)
Ravatherm 120mm XPS 300 SL Flat Roof Board
XPS thermal insulation boardPack Length: 3750mmPack Width: 1800mmPack coverage: 2.25m2Thickness: 120mmQuantity: 3 SheetskPa: 300kPa
Last known price:£58.49 Inc VAT (£48.74 ex VAT)
Ravatherm XPS 300 SL 115mm Board
XPS thermal insulation boardPack Length: 3750mmPack Width: 1800mmPack coverage: 2.25m2Thickness: 115mmQuantity: 3 SheetskPa: 300kPa
Last known price:£56.54 Inc VAT (£47.12 ex VAT)
100mm Ravatherm XPS 300 SL Flat Roof Board
XPS thermal insulation boardPack Length: 5000mmPack Width: 2400mmPack coverage: 3m2Thickness: 100mmQuantity: 4 SheetskPa: 300kPa
Last known price:£64.75 Inc VAT (£53.96 ex VAT)
80mm Ravatherm XPS 300 SL Board
XPS thermal insulation boardPack Length: 6250mmPack Width: 3000mmPack coverage: 3.75m2Thickness: 80mmQuantity: 5 SheetskPa: 300kPa
Last known price:£67.20 Inc VAT (£56.00 ex VAT)
Ravatherm XPS 300 SL 50mm Flat Roof Board
XPS thermal insulation boardPack Length: 10000mmPack Width: 4800mmPack coverage: 6m2Thickness: 50mmQuantity: 8 SheetskPa: 300kPa
Last known price:£66.12 Inc VAT (£55.10 ex VAT)
Styrodur 4000CS XPS Extruded Polystyrene Board
XPS Extruded Polystyrene BoardQuantity: Made to orderkPa: 500kPa
Last known price:£72.00 Inc VAT (£60.00 ex VAT)
BASF Styrodur 3000CS 120mm XPS Board
XPS Extruded Polystyrene BoardPack Length: 3795mmPack Width: 1845mmPack coverage: 2.34m2Thickness: 120mmQuantity: 3 Sheets
Last known price:£93.38 Inc VAT (£77.82 ex VAT)
BASF Styrodur 3000CS 100mm XPS Board
XPS Extruded Polystyrene BoardPack Length: 5060mmPack Width: 2460mmPack coverage: 3.12m2Thickness: 100mmQuantity: 4 Sheets
Last known price:£105.60 Inc VAT (£88.00 ex VAT)
80mm Styrodur 3000CS XPS Extruded Polystyrene Board
XPS Extruded Polystyrene BoardPack Length: 6325mmPack Width: 3075mmPack coverage: 3.90m2Thickness: 80mmQuantity: 5 Sheets
Last known price:£117.77 Inc VAT (£98.14 ex VAT)
BASF Styrodur 3000CS 60mm XPS Board
XPS Extruded Polystyrene BoardPack Length: 8855mmPack Width: 4305mmPack coverage: 5.46m2Thickness: 60mmQuantity: 7 Sheets
Last known price:£143.16 Inc VAT (£119.30 ex VAT)
50mm BASF Styrodur 3000CS XPS Board
XPS Extruded Polystyrene BoardPack Length: 10120mmPack Width: 4920mmPack coverage: 6.24m2Thickness: 50mmQuantity: 8 Sheets
Last known price:£140.40 Inc VAT (£117.00 ex VAT)
40mm Styrodur 3000CS XPS Insulation Board
XPS Extruded Polystyrene BoardPack Length: 12650mmPack Width: 6150mmPack coverage: 7.80m2Thickness: 40mmQuantity: 10 sheets
Last known price:£131.72 Inc VAT (£109.77 ex VAT)
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