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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 02039519012 , email sales@insulationstoreonline.co.uk or Live Chat - Lowest UK Prices.

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Flat Roof Insulation - image
16 products
newest
171mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
171mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 171mmQuantity: 1 Sheet
Last known price: £152.57
£ 183.08 Inc VAT
156mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
156mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 156mmQuantity: 1 Sheet
Last known price: £130.21
£ 156.25 Inc VAT
146mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
146mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 146mmQuantity: 1 Sheet
Last known price: £125.17
£ 150.20 Inc VAT
136mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
136mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 136mmQuantity: 1 Sheet
Last known price: £113.89
£ 136.67 Inc VAT
126mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
126mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 126mmQuantity: 1 Sheet
Last known price: £104.62
£ 125.54 Inc VAT
116mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
116mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 116mmQuantity: 1 Sheet
Last known price: £97.31
£ 116.77 Inc VAT
106mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
106mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 106mmQuantity: 1 Sheet
Last known price: £48.55
£ 58.26 Inc VAT
96mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
96mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 96mmQuantity: 1 Sheet
Last known price: £92.41
£ 110.89 Inc VAT
86mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
86mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 86mmQuantity: 1 Sheet
Last known price: £77.54
£ 93.05 Inc VAT
81mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
81mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 81mmQuantity: 1 Sheet
Last known price: £79.37
£ 95.24 Inc VAT
76mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
76mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 76mmQuantity: 1 Sheet
Last known price: £48.55
£ 58.26 Inc VAT
71mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
71mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 71mmQuantity: 1 Sheet
Last known price: £71.05
£ 85.26 Inc VAT
66mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
66mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 66mmQuantity: 1 Sheet
Last known price: £69.55
£ 83.46 Inc VAT
61mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
61mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 61mmQuantity: 1 Sheet
Last known price: £66.55
£ 79.86 Inc VAT
56mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
56mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 56mmQuantity: 1 Sheet
Last known price: £62.85
£ 75.42 Inc VAT
51mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board - image
51mm Unilin FR/TP Thin-R Thermal Ply Flat Roof Insulation Board
High Performance PIR and Plywood Composite Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 51mmQuantity: 1 Sheet
Last known price: £48.55
£ 58.26 Inc VAT
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