- DIY Building Supplies
50mm Celotex CW4050 Cavity Insulation – 1200mm x 450mm – 11 Boards
Product Details
This Celotex CW4050 is a partial fill insulation for masonry cavity walls. It is a high-performance rigid polyisocyanurate (PIR) material which is available in 50mm thickness and has been pre-sized so it can fit between cavity wall ties. It's suitable for use in both new and existing builds as well as extensions, making it a versatile option. CW4050 insulation has excellent thermal conductivity value of 0.022 W/mK, and the innovative low emissive aluminium foil facing helps it to achieve impressive uValues. As a result, it's among the best-performing insulation materials available on the market, bringing you reliable long-term savings. Quick & easy to install High-performance partial fill PIR insulation board Low emissivity foil facings Improves thermal insulation performance in cavity air spaces Suitable for masonry cavity walls CS(10\Y)120 compressive strength (kPa) Celotex CW4050 insulation board has been specifically sized to fit the standard wall tie spacing requirements. This means that no cutting is required, making it quick and easy to be installed. When fitted correctly, it will help you meet carbon dioxide emissions and energy use targets which have been set by the national building regulations. Thickness: 50 mm Length: 1200 mm Width: 450 mm No. Boards: 11 Coverage: 5.94 m² R-value: 2.25 m²K/W Thermal Conductivity: 0.022 W/mK Maximum Weight: 1.92 kg/m² Certification: BA 16/5352 BBA 17/5405 Country Origin: UK The R-value denotes the resistance to heat flow – the higher the R-value the more insulating the product is. What's more, this sturdy PIR insulation comes with a BBA (British Board of Agrément) certificate and a BRE (Building Research Establishment) Green Guide Rating of A, which will help improve your environmental performance. Thermal conductivity: 0.022W/mK, according to BS EN 13165 for factory made rigid polyurethane foam (PU) product BRE Green Guide Rating: A Spread of flame: Euroclass F Reaction to Fire classification, according to BS EN 13501-1. Products with this level of classification are not provided with a rating for smoke emission. Certification: BBA certified
| Product Name | 50mm Celotex CW4050 Cavity Insulation - 1200mm x 450mm - 11 Boards |
| Brand | Celotex |
Popular products right now -

Emporio Armani Baby Girls Bodysuit Gift Set (2 Piece) In Pink 3 Mths
Original price was: £160.00.£64.00Current price is: £64.00.
-

Moncler Enfant Boys Nasses Jacket 10 Yrs Black
£355.00
-

Dolce & Gabbana Baby Boys Leopard Logo Blanket in Blue One size Black
Original price was: £315.00.£158.00Current price is: £158.00.
-

Monnalisa Girls Neoprene Stars Skirt 2 Yrs Blue
Original price was: £82.00.£32.00Current price is: £32.00.
-

Timberland Boys Hooded Parka in Brown 4 Yrs
Original price was: £149.00.£90.00Current price is: £90.00.
-

BOSS Baby Boys Embroidered Logo Polo Top 3 Yrs White
£44.00
-

Chloé Baby Girls Embroidered Logo Dress in Beige 12 Mths
£120.00
-

Magnolia Baby Baby Boys Grand Prix Embroidered Babygrow Set in White 3 Mths
Original price was: £48.00.£33.00Current price is: £33.00.
-

iAMe Girls A Line Tulle Dress in Red 14 Yrs
Original price was: £85.00.£51.00Current price is: £51.00.
-

Converse Girls Boyfriend Graphic T-Shirt in White 5 – 6 Yrs
£20.00
-

Mini Rodini Boys Jacket – Leopard Denim Jacket 5 – 7 Yrs Black
Original price was: £120.00.£48.00Current price is: £48.00.
-

Dulux Paint Mixing Weathershield Smooth Masonry Paint Jurassic Stone, 5L
£50.06
-

Golden Goose Kids Leather Ballstar Trainers in White EU 29 UK 11
Original price was: £195.00.£117.00Current price is: £117.00.
-

Timberland Boys Camouflage Joggers in Green 10 Yrs Brown
Original price was: £65.00.£39.00Current price is: £39.00.
-

Dolce & Gabbana Baby Girls Floral Zip Up Hoodie 12 – 18 Mths Black
Original price was: £325.00.£130.00Current price is: £130.00.
-

Versace Girls All Over Print Dress 5 Yrs Pink
Original price was: £405.00.£162.00Current price is: £162.00.
-

Moncler Enfant Girls Down Padded Liane Gilet in Pink 12 Yrs
£295.00
-

DL1961 Boys Jacob Chino Shorts in Blue 3 Yrs
Original price was: £58.00.£40.00Current price is: £40.00.
-

Ralph Lauren Boys Pyjama Shorts in Navy 6 Yrs Blue
Original price was: £26.00.£13.00Current price is: £13.00.
-

Moncler Enfant Boys Logo Print Sweatshirt in White 6 Yrs
£185.00
-

Nessi Byrd Girls One Shoulder Ruffle Eliza Swimsuit in Pink 12 Yrs
£79.00
-

Dulux Paint Mixing Eggshell COBALT NIGHT, 500ml
£20.54
-

Dulux Paint Mixing Easycare Washable & Tough Matt Quilted Calico 3, 5L
£67.06
-

Ralph Lauren Baby Girls 3 Pack Bear Socks Set in Ivory 18 – 24 Mths
Original price was: £9.00.£4.00Current price is: £4.00.
-

Mini Melissa Girls Ultragirl Star II Ballerinas in White EU 27 UK 9
£49.00
-

Mini Rodini Kids Logo Sweatshirt in Beige 6 – 7 Yrs
£42.00
-

Balmain Boys Wool Mix Knit Jumper in Brown 12 Yrs
Original price was: £354.00.£141.00Current price is: £141.00.
-

Dulux Paint Mixing Weathershield Smooth Masonry Paint Soft Almond 4, 5L
£50.06
-

Guess Girls Tulle Dress in Black 14 Yrs
£90.00
-

Fendi Girls Skirt 4 Yrs White
Original price was: £200.00.£100.00Current price is: £100.00.
-

Axus Wallpaper Press (3 IN 1) Each
£14.06
-

Medium Lightweight Hardshell Suitcase – Green
Original price was: £49.99.£24.99Current price is: £24.99.
-

Konges Slojd Kids Wool Bunny Beret 12 – 18 Mths Brown
Original price was: £36.00.£15.00Current price is: £15.00.
-

Stella McCartney Boys Shark Sliders in Grey EU 29 UK 11
£77.00
-

Missoni Boys Logo Sleeveless Top in White 14 Yrs
£92.00
-

Galerie Imagine – Strata Wallpaper W 0.53m x L 10.05m Beige
£41.95
-

Roberto Cavalli Girls Silk Botany Skirt in White 6 Yrs
Original price was: £312.00.£218.00Current price is: £218.00.
-

Axus S-Tex Painters Trousers 36 Inch Long
£37.19
-

Stella McCartney Kids Disney Fantasia Mickey Bucket Hat L (12 – 14 Yrs) Ivory
Original price was: £58.00.£29.00Current price is: £29.00.
-

Moschino Baby Girls Holiday Sweater Dress in Ivory 2 Yrs Red
Original price was: £110.00.£55.00Current price is: £55.00.
-

Emporio Armani Baby Girls Bodysuit Gift Set (2 Piece) In Pink 3 Mths
Original price was: £160.00.£64.00Current price is: £64.00. -

Moncler Enfant Boys Nasses Jacket 10 Yrs Black
£355.00 -

Dolce & Gabbana Baby Boys Leopard Logo Blanket in Blue One size Black
Original price was: £315.00.£158.00Current price is: £158.00. -

Monnalisa Girls Neoprene Stars Skirt 2 Yrs Blue
Original price was: £82.00.£32.00Current price is: £32.00. -

Timberland Boys Hooded Parka in Brown 4 Yrs
Original price was: £149.00.£90.00Current price is: £90.00. -

BOSS Baby Boys Embroidered Logo Polo Top 3 Yrs White
£44.00 -

Chloé Baby Girls Embroidered Logo Dress in Beige 12 Mths
£120.00 -

Magnolia Baby Baby Boys Grand Prix Embroidered Babygrow Set in White 3 Mths
Original price was: £48.00.£33.00Current price is: £33.00. -

iAMe Girls A Line Tulle Dress in Red 14 Yrs
Original price was: £85.00.£51.00Current price is: £51.00. -

Converse Girls Boyfriend Graphic T-Shirt in White 5 – 6 Yrs
£20.00 -

Mini Rodini Boys Jacket – Leopard Denim Jacket 5 – 7 Yrs Black
Original price was: £120.00.£48.00Current price is: £48.00. -

Dulux Paint Mixing Weathershield Smooth Masonry Paint Jurassic Stone, 5L
£50.06 -

Golden Goose Kids Leather Ballstar Trainers in White EU 29 UK 11
Original price was: £195.00.£117.00Current price is: £117.00. -

Timberland Boys Camouflage Joggers in Green 10 Yrs Brown
Original price was: £65.00.£39.00Current price is: £39.00. -

Dolce & Gabbana Baby Girls Floral Zip Up Hoodie 12 – 18 Mths Black
Original price was: £325.00.£130.00Current price is: £130.00. -

Versace Girls All Over Print Dress 5 Yrs Pink
Original price was: £405.00.£162.00Current price is: £162.00. -

Moncler Enfant Girls Down Padded Liane Gilet in Pink 12 Yrs
£295.00 -

DL1961 Boys Jacob Chino Shorts in Blue 3 Yrs
Original price was: £58.00.£40.00Current price is: £40.00. -

Ralph Lauren Boys Pyjama Shorts in Navy 6 Yrs Blue
Original price was: £26.00.£13.00Current price is: £13.00. -

Moncler Enfant Boys Logo Print Sweatshirt in White 6 Yrs
£185.00 -

Nessi Byrd Girls One Shoulder Ruffle Eliza Swimsuit in Pink 12 Yrs
£79.00 -

Dulux Paint Mixing Eggshell COBALT NIGHT, 500ml
£20.54 -

Dulux Paint Mixing Easycare Washable & Tough Matt Quilted Calico 3, 5L
£67.06 -

Ralph Lauren Baby Girls 3 Pack Bear Socks Set in Ivory 18 – 24 Mths
Original price was: £9.00.£4.00Current price is: £4.00. -

Mini Melissa Girls Ultragirl Star II Ballerinas in White EU 27 UK 9
£49.00 -

Mini Rodini Kids Logo Sweatshirt in Beige 6 – 7 Yrs
£42.00 -

Balmain Boys Wool Mix Knit Jumper in Brown 12 Yrs
Original price was: £354.00.£141.00Current price is: £141.00. -

Dulux Paint Mixing Weathershield Smooth Masonry Paint Soft Almond 4, 5L
£50.06 -

Guess Girls Tulle Dress in Black 14 Yrs
£90.00 -

Fendi Girls Skirt 4 Yrs White
Original price was: £200.00.£100.00Current price is: £100.00. -

Axus Wallpaper Press (3 IN 1) Each
£14.06 -

Medium Lightweight Hardshell Suitcase – Green
Original price was: £49.99.£24.99Current price is: £24.99. -

Konges Slojd Kids Wool Bunny Beret 12 – 18 Mths Brown
Original price was: £36.00.£15.00Current price is: £15.00. -

Stella McCartney Boys Shark Sliders in Grey EU 29 UK 11
£77.00 -

Missoni Boys Logo Sleeveless Top in White 14 Yrs
£92.00 -

Galerie Imagine – Strata Wallpaper W 0.53m x L 10.05m Beige
£41.95 -

Roberto Cavalli Girls Silk Botany Skirt in White 6 Yrs
Original price was: £312.00.£218.00Current price is: £218.00. -

Axus S-Tex Painters Trousers 36 Inch Long
£37.19 -

Stella McCartney Kids Disney Fantasia Mickey Bucket Hat L (12 – 14 Yrs) Ivory
Original price was: £58.00.£29.00Current price is: £29.00. -

Moschino Baby Girls Holiday Sweater Dress in Ivory 2 Yrs Red
Original price was: £110.00.£55.00Current price is: £55.00.
