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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
146mm Unilin FR/TP Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 146mmQuantity: 1 Sheet
Last known price:£169.73 Inc VAT (£141.44 ex VAT)
Unilin FR/TP 136mm Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 136mmQuantity: 1 Sheet
Last known price:£154.44 Inc VAT (£128.70 ex VAT)
126mm Unilin FR/TP Thermal Ply Flat Roof Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 126mmQuantity: 1 Sheet
Last known price:£141.86 Inc VAT (£118.22 ex VAT)
116mm Unilin FR/TP Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 116mmQuantity: 1 Sheet
Last known price:£131.95 Inc VAT (£109.96 ex VAT)
Unilin FR/TP 106mm Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 106mmQuantity: 1 Sheet
Last known price:£65.83 Inc VAT (£54.86 ex VAT)
96mm Unilin FR/TP Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 96mmQuantity: 1 Sheet
Last known price:£125.30 Inc VAT (£104.42 ex VAT)
Unilin Thin-R FR/TP 86mm Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 86mmQuantity: 1 Sheet
Last known price:£105.14 Inc VAT (£87.62 ex VAT)
81mm Unilin FR/TP Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 81mmQuantity: 1 Sheet
Last known price:£107.63 Inc VAT (£89.69 ex VAT)
76mm Unilin FR/TP Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 76mmQuantity: 1 Sheet
Last known price:£65.83 Inc VAT (£54.86 ex VAT)
71mm Unilin FR/TP Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 71mmQuantity: 1 Sheet
Last known price:£96.35 Inc VAT (£80.29 ex VAT)
66mm Unilin FR/TP Thermal Ply Flat Roof Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 66mmQuantity: 1 Sheet
Last known price:£94.31 Inc VAT (£78.59 ex VAT)
61mm Unilin FR/TP Thermal Ply Flat Roof Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 61mmQuantity: 1 Sheet
Last known price:£90.24 Inc VAT (£75.20 ex VAT)
56mm Unilin FR/TP Thermal Ply Flat Roof Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 56mmQuantity: 1 Sheet
Last known price:£85.22 Inc VAT (£71.02 ex VAT)
51mm Unilin FR/TP Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 51mmQuantity: 1 Sheet
Last known price:£65.83 Inc VAT (£54.86 ex VAT)
Unilin FR/TP 46mm Flat Roof Insulation Board
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 46mmQuantity: 1 Sheet
Last known price:£72.74 Inc VAT (£60.62 ex VAT)
41mm Unilin FR/TP Thermal Ply Flat Roof Insulation
High Performance PIR and Plywood CompositePack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 41mmQuantity: 1 Sheet
Last known price:£65.83 Inc VAT (£54.86 ex VAT)
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