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Multiwall Polycarbonate Sheet Clear 3000mm x 2100mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £170.61 £204.73 -
Multiwall Polycarbonate Sheet Clear 5000mm x 1050mm x 35mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £180.25 £216.30 -
Multiwall Polycarbonate Sheet Clear 5000mm x 2100mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £284.32 £341.18 -
Multiwall Polycarbonate Sheet Clear 4500mm x 1400mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £170.58 £204.70 -
Multiwall Polycarbonate Sheet Opal 2500mm x 700mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £50.44 £60.53 -
Multiwall Polycarbonate Sheet Opal 4000mm x 2100mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £234.70 £281.64 -
Multiwall Polycarbonate Sheet Clear 2000mm x 700mm x 35mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £48.07 £57.68 -
Multiwall Polycarbonate Sheet Clear 3500mm x 2100mm x 35mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £252.45 £302.94 -
Multiwall Polycarbonate Sheet Clear 6000mm x 1050mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £170.61 £204.73 -
Multiwall Polycarbonate Sheet Opal 2500mm x 2100mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £148.15 £177.78 -
Twinwall Polycarbonate Sheet Clear 1050mm x 700mm x 4mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £24.22 £29.06 -
Multiwall Polycarbonate Sheet Opal 4500mm x 700mm x 25mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £89.85 £107.82 -
Twinwall Polycarbonate Sheet Opal 2000mm x 700mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £19.04 £22.85 -
Twinwall Polycarbonate Sheet Opal 3000mm x 2100mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £85.70 £102.84 -
Twinwall Polycarbonate Sheet Clear 5000mm x 1400mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £95.30 £114.36 -
Triplewall Polycarbonate Sheet Clear 4500mm x 900mm x 16mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £86.33 £103.60 -
Twinwall Polycarbonate Sheet Clear 5000mm x 1050mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £71.45 £85.74 -
Twinwall Polycarbonate Sheet Opal 3000mm x 1400mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £57.16 £68.59 -
Multiwall Polycarbonate Sheet Athermic 3000mm - All Sizes
Vendor:B4L Roofing
Free delivery on orders over
£450£540
from
Regular price£62.68 £75.22 -
Multiwall Polycarbonate Sheet Athermic 5000mm - All Sizes
Vendor:B4L Roofing
Free delivery on orders over
£450£540
from
Regular price£102.28 £122.74 -
Express Delivery
25mm Celotex TB4025 2.4m x 1.2m
Vendor:Celotex
Free delivery on Celotex orders over
£300£360
Regular price £9.69 £11.63Sale price £9.69 £11.63 Regular priceUnit price per£0.00 -
Express Delivery
30mm Celotex TB4030 2.4m x 1.2m
Vendor:Celotex
Free delivery on Celotex orders over
£300£360
Regular price £11.10 £13.32Sale price £11.10 £13.32 Regular priceUnit price per£0.00 -
Express Delivery
75mm Celotex GA4075 2.4m x 1.2m
Vendor:Celotex
Free delivery on Celotex orders over
£300£360
Regular price £20.13 £24.16Sale price £20.13 £24.16 Regular priceUnit price per£0.00 -
Cladshield Breather Membrane
Vendor:Proctor
Delivery charges calculated at checkout
Regular price £127.98 £153.58Sale price £127.98 £153.58 Regular priceUnit price per£0.00 -
Express Delivery
40mm Celotex TB4040 2.4m x 1.2m
Vendor:Celotex
Free delivery on Celotex orders over
£300£360
Regular price £14.00 £16.80Sale price £14.00 £16.80 Regular priceUnit price per£0.00 -
Express Delivery
130mm Celotex XR4130 2.4m x 1.2m
Vendor:Celotex
Free delivery on Celotex orders over
£300£360
Regular price £37.45 £44.94Sale price £37.45 £44.94 Regular priceUnit price per£0.00 -
Thin-R Cavity 60mm
Vendor:Unilin
Free delivery on Unilin orders over
£300£360
Regular price £0.00 £0.00Sale price £0.00 £0.00 Regular priceUnit price per£0.00 -
OPTIM-R Roofing System
Vendor:Kingspan
Free delivery on Kingspan orders over
£300£360
POA -
Express Delivery
Celotex PL4000 Insulated Plasterboard (All Sizes) 2.4m x 1.2m
Vendor:Celotex
Free delivery on Celotex orders over
£300£360
from
Regular price £25.58 £30.70Sale price £25.58 £30.70 Regular priceUnit price per£26.93£32.32Sale -
Wraptite Detailing Tape - All Sizes
Vendor:Proctor
Delivery charges calculated at checkout
from
Regular price £71.11 £85.33Sale price £71.11 £85.33 Regular priceUnit price per£0.00 -
Danosa Danopren TR XPS Insulation 600mm x 1250mm - All Sizes
Vendor:Danosa
Free delivery on orders over
£450£540
from
Regular price £43.49 £52.19Sale price £43.49 £52.19 Regular priceUnit price per£0.00 -
Plylok PIR Insulation Board (2.4m x 1.2m)
Vendor:Recticel
Free delivery on Recticel orders over
£300£360
from
Regular price £2,517.80 £3,021.36Sale price £2,517.80 £3,021.36 Regular priceUnit price per£0.00 -
Kingspan Thermaroof TR26 Flat Roof Board (All Sizes) 2400mm x 1200mm
Vendor:Kingspan
Free delivery on Kingspan orders over
£300£360
from
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Ecotherm Eco Torch 1.2m x 0.6m - All Thicknesses
Vendor:Ecotherm
Free delivery on Ecotherm orders over
£300£360
from
Guide Price: £69.83 Guide Price: £83.80 -
Kingspan GreenGuard GG700 600mm x 1250mm - All Sizes
Vendor:Kingspan
Free delivery on Kingspan orders over
£300£360
from
POA -
Kingspan GreenGuard GG500 600mm x 1250mm - All Sizes
Vendor:Kingspan
Free delivery on Kingspan orders over
£300£360
from
Guide Price: £8.46 Guide Price: £10.15
Welcome to the Flat Roof Insulation category on Build4Less! As experts in the field, we're here to guide you through the selection of flat roof insulation solutions suitable for a variety of applications.
Composite Insulated Roof Panels
333 Box Profile Composite Insulated Roof Panels (Goosewing Grey) are an all-in-one solution, combining durability, insulation, and a sleek finish. Ideal for commercial and industrial buildings, these panels offer robust weather protection and thermal efficiency.
SuperFOIL Insulation Products
SuperFOIL offers a comprehensive range of multi-layer foil insulation products suitable for various applications:
- Foil Tapes: These are essential for sealing joints and edges of insulation sheets to maintain continuity of the insulation layer.
- Foil Insulation Rolls: Available in different thicknesses, these rolls provide a high-performance insulation layer, reflecting radiant heat and providing a vapour control layer.
Pipe Wraps and General Purpose Wraps: Specifically designed for wrapping around piping or for smaller applications, providing targeted insulation to reduce heat loss.
Actis Insulation
Actis Boost'R Hybrid Reflective Breather Membrane combines insulation with a reflective layer, ideal for use in conjunction with other insulation materials to enhance overall thermal performance.
Sheepwool Insulation
Sheepwool offers natural, breathable insulation products like Loose Wool and Window and Door Filler. These are perfect for environmentally-conscious projects requiring a sustainable, yet effective insulation solution.
Kingspan Thermataper
Kingspan Thermataper TT47 and TT46 are tapered insulation solutions, designed to provide a fall on flat roofs, ensuring efficient drainage and thermal performance.
Selecting the Right Product
When selecting the appropriate flat roof insulation, consider:
- Thermal Requirements: Ensure the product meets the thermal resistance needed for your project.
- Application Area: Consider the size and specifics of the area being insulated. Some products are better suited for large open areas, while others are designed for targeted applications.
- Building Regulations: Ensure compliance with local building regulations and standards.
Rated Excellent



