Collection: Slab Insulation
We offer a wide range of high-quality slab insulation products to help keep your home warm and comfortable all year round. Our selection of products includes both internal and external insulation, so you can choose the right type of product for your needs. We also offer a variety of different thicknesses to suit your budget and requirements. Whether you're looking for something to insulate your walls or floors, we're sure to have the right product for you. Browse our extensive range of slab insulation today. You won't be disappointed.
Collection: Slab Insulation
We offer a wide range of high-quality slab insulation products to help keep your home warm and comfortable all year round. Our selection of products includes both internal and external insulation, so you can choose the right type of product for your needs. We also offer a variety of different thicknesses to suit your budget and requirements. Whether you're looking for something to insulate your walls or floors, we're sure to have the right product for you. Browse our extensive range of slab insulation today. You won't be disappointed.
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Isover Batt - CWS 36 (1.2m x 0.45m) All Sizes - Pallet Quantity
Vendor:IsoverfromStandardFree Delivery over £380£456Regular price £708.16 £849.79Sale price £708.16 £849.79 Regular priceUnit price per£0.00 -
Recticel Eurothane GP (2.4m x 1.2m) All Sizes
Vendor:RecticelfromStandardFree Delivery over £380£456Regular price £14.25 £17.10Sale price £14.25 £17.10 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K110 Soffit Board (All Sizes) - 2.4m x 1.2m
Vendor:KingspanfromStandardFree Delivery over £380£456 -
Rockwool RW5 (All Sizes)
Vendor:RockwoolfromStandardFree Delivery over £380£456Regular price £633.37 £760.04Sale price £633.37 £760.04 Regular priceUnit price per£0.00 -
Express Delivery
Celotex XR4000 Insulation Board 1.2m x 2.4m - All Sizes
Vendor:CelotexfromStandardFree Delivery over £380£456Regular price £48.00 £57.60Sale price £48.00 £57.60 Regular priceUnit price per£0.00 -
EPS 70 (All Sizes) 2400mm x 1200mm
Vendor:Build4lessfromRegular price £64.95 £77.94Sale price £64.95 £77.94 Regular priceUnit price per£0.00 -
Karma Overlay 2400mm x 600mm - All Sizes
Vendor:KarmafromRegular price £36.59 £43.91Sale price £36.59 £43.91 Regular priceUnit price per£0.00 -
Danosa 75mm XPS Concrete Slab Grey - 500mm x 500mm
Vendor:DanosaDanosa XPSFree Delivery over £2,000£2,400Regular price £12.41 £14.89Sale price £12.41 £14.89 Regular priceUnit price per£0.00 -
Express Delivery
Celotex TB4000 Thermal Bridging Board 1.2m x 2.4m - All Sizes
Vendor:CelotexfromStandardFree Delivery over £380£456Regular price £14.25 £17.10Sale price £14.25 £17.10 Regular priceUnit price per£0.00 -
Gyproc Thermaline Basic 1.2m x 2.4m - All Sizes (Price Per Pallet)
Vendor:British GypsumfromStandardFree Delivery over £380£456Regular price £897.37 £1,076.84Sale price £897.37 £1,076.84 Regular priceUnit price per£0.00 -
EcoTherm Eco-Liner 1.2m x 2.4m - All Thicknesses
Vendor:EcothermfromStandardFree Delivery over £380£456Guide Price: £41.50 Guide Price: £49.80 -
Thermaroof TR24 (All Sizes) 1200mm x 600mm
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £0.00 £0.00Sale price £0.00 £0.00 Regular priceUnit price per£0.00 -
Knauf XPS Thermal Laminate Plus 1.2m x 2.4m - All Sizes
Vendor:KnauffromStandardFree Delivery over £380£456Regular price £1,032.26 £1,238.71Sale price £1,032.26 £1,238.71 Regular priceUnit price per£0.00 -
Expansion Joint Foam Sheets (All Thicknesses) 2000mm x 1200mm
Vendor:Euro AccessoriesfromRegular price £10.59 £12.71Sale price £10.59 £12.71 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K5 External Wall Board 1.2m x 0.6m (All Sizes)
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £131.61 £157.93Sale price £131.61 £157.93 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K103 Floorboard (All Sizes) 2400mm x 1200mm
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £321.31 £385.57Sale price £321.31 £385.57 Regular priceUnit price per£0.00 -
Isover Batt - CWS 32 (All Sizes) 1.2m x 0.45m
Vendor:IsoverfromStandardFree Delivery over £380£456Regular price £645.69 £774.83Sale price £645.69 £774.83 Regular priceUnit price per£0.00 -
Gyproc Thermaline Plus (2.4m x 1.2m) All Sizes (Price Per Pallet)
Vendor:British GypsumfromStandardFree Delivery over £380£456Regular price £1,352.12 £1,622.54Sale price £1,352.12 £1,622.54 Regular priceUnit price per£0.00 -
EcoTherm Eco-Versal 2.4m x 1.2m - All Thicknesses
Vendor:EcothermfromStandardFree Delivery over £380£456Regular price £14.25 £17.10Sale price £14.25 £17.10 Regular priceUnit price per£0.00 -
Black Mountain Natuwool Batts (1.2m x 0.4m) - All Sizes
Vendor:Black MountainfromStandardFree Delivery over £380£456Regular price £35.41 £42.49Sale price £35.41 £42.49 Regular priceUnit price per£0.00 -
IKO Enertherm ALU PIR 2.4m x 1.2m - All Sizes
Vendor:IKO PIRfromStandardFree Delivery over £380£456Regular price £14.25 £17.10Sale price £14.25 £17.10 Regular priceUnit price per£0.00 -
Mannok Therm PIR Insulation board 2.4m x 1.2m - All Sizes
Vendor:MannokfromStandardFree Delivery over £380£456Regular price £14.25 £17.10Sale price £14.25 £17.10 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K108 Cavity Board (All Sizes) 1200mm x 450mm
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £110.94 £133.13Sale price £110.94 £133.13 Regular priceUnit price per£0.00 -
Ballytherm cavity 0.45m x 1.2m All Sizes
Vendor:BallythermfromStandardFree Delivery over £380£456Regular price £58.06 £69.67Sale price £58.06 £69.67 Regular priceUnit price per£0.00 -
Gyproc Thermaline Super (2.4m x 1.2m) All Sizes
Vendor:British GypsumfromStandardFree Delivery over £380£456Regular price £91.52 £109.82Sale price £91.52 £109.82 Regular priceUnit price per£0.00 -
Kingspan Thermaroof TR27 Flat Roof Board - All Sizes
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £116.50 £139.80Sale price £116.50 £139.80 Regular priceUnit price per£0.00 -
Unilin Thin-R 2.4m x 1.2m - All Sizes
Vendor:UnilinfromUnilinFree Delivery over £350£420Regular price £14.25 £17.10Sale price £14.25 £17.10 Regular priceUnit price per£0.00 -
Recticel Eurowall+ Full-Fill Cavity 1.2m x 0.46m
Vendor:RecticelfromStandardFree Delivery over £380£456Regular price £786.50 £943.80Sale price £786.50 £943.80 Regular priceUnit price per£0.00 -
Danosa Impactodan 5 Polyethylene Foam Sheet
Vendor:DanosafromRegular price £27.48 £32.98Sale price £27.48 £32.98 Regular priceUnit price per£0.00 -
Gyproc Wallboard Square Edge 1200 x 2400 - All Thicknesses
Vendor:British GypsumfromStandardFree Delivery over £380£456Regular price £14.93 £17.92Sale price £14.93 £17.92 Regular priceUnit price per£0.00 -
Wooden Slat Acoustic Wall Panel Sample Box
Vendor:The Wood Wall Panel CompanyfromWood Wall Panel Company SampleFree DeliveryRegular price £4.00 £4.80Sale price £4.00 £4.80 Regular priceUnit price per£0.00 -
Kingspan OPTIM-R E Inverted Roofing System
Vendor:KingspanStandardFree Delivery over £380£456POA -
Danosa Fonodan 900 Double Layer Acoustic Membrane - 10m x 0.92m
Vendor:DanosaRegular price £77.71 £93.25Sale price £77.71 £93.25 Regular priceUnit price per£0.00 -
Danosa MAD4 Acoustic Bituminous Auto-Adhesive Sheet
Vendor:DanosafromRegular price £13.43 £16.12Sale price £13.43 £16.12 Regular priceUnit price per£0.00 -
Thermaclass Cavity Wall 21 (1190mm x 450mm) - All Sizes
Vendor:CelotexfromStandardFree Delivery over £380£456Regular price £107.04 £128.45Sale price £107.04 £128.45 Regular priceUnit price per£0.00 -
STS Insulation Board 1.2m x 0.6m (Pallet of 10) - All Sizes
Vendor:STS UKfromRegular price £104.11 £124.93Sale price £104.11 £124.93 Regular priceUnit price per£0.00
Slab insulation is a critical component in modern construction, offering effective thermal and acoustic insulation in various building applications. At Build4Less, our Slab Insulation category encompasses a wide range of products, each tailored to specific requirements and use cases.
Types of Slab Insulation
Knauf Slabs
Knauf offers a variety of slab insulation products, known for their flexibility and versatility. Products like the Rocksilk Flexible Slab and Frametherm Slab are ideal for thermal and acoustic insulation in both residential and commercial buildings. They are available in various sizes, ensuring a suitable fit for different construction needs.
Rockwool Slabs
Rockwool's slab insulations, such as the Flexi-Slab and Rainscreen Duo Slab, are renowned for their fire-resistant properties and sound absorption. These slabs are perfect for areas requiring high fire safety standards and noise reduction.
IKO Enertherm ALU Slabs
IKO's Enertherm ALU range offers slab insulations in various thicknesses, catering to different thermal requirements. These slabs are known for their high thermal performance and are commonly used in floors, walls, and roofing applications.
Steico Flex Wood Fibre Insulation Batts
Steico presents an eco-friendly option with their Flex 036 Wood Fibre Insulation Batts. These are excellent for environmentally conscious projects, providing natural thermal insulation and breathability.
Practical Uses
- Residential and Commercial Buildings: For effective thermal insulation in walls, floors, androofs, helping in energy conservation.
- Acoustic Insulation: Ideal for spaces where soundproofing is necessary, such as recording studios or busy urban areas.
Fire Safety: Certain slabs offer enhanced fire resistance, making them suitable for use in high-risk areas.
Selection Guidance
- Thermal Needs: Consider the required R-value (thermal resistance) for your project. Higher R-values indicate better insulation.
- Acoustic Requirements: If noise reduction is a priority, opt for slabs with higher sound absorption ratings.
- Fire Safety: In areas where fire safety is crucial, choose slabs with superior fire-resistant properties.
Environmental Considerations: For eco-friendly projects, select slabs made from sustainable materials like wood fibre.
Each product in our Slab Insulation category is designed to meet specific building requirements, ensuring that you can find the right solution for your project. While prices may vary, our commitment to quality and variety remains constant, helping you build more efficiently and sustainably.
Rated Excellent



