Delivery address
Collection branch

Knauf Insulation Cavity and Internal Wall Insulation

19 items
Sort by:
Relevance
Price
Star Rating
Name

Filters (1)

Show products only available in my area
Knauf Insulation
Category
Thickness
Brand
Width
Type
Material
Coverage
Pack quantity
Length
Reviews
Colour
Depth
When you’re looking for thermal insulation for a construction project, or you need to improve energy efficiency in an existing building, it’s worth investing in quality cavity wall insulation. In our wide range of wall insulation and cavity insulation you’ll find glass mineral wool rolls and slabs, resin-bonded slabs, and stone wool slab options. All of our wall insulation is certified Euroclass A1 fire resistant and is suitable for external wall insulation and partition wall insulation. You’ll also find acoustic insulation to aid privacy and noise reduction from adjoining properties, above and below. With a choice of sizes and ready cut options you’ll find what you need to suit your building application.
Please enter your delivery postcode...
Please select your collection branch...
Knauf Insulation DriTherm 37 Cavity Insulation Slab  75mm 1200mm x 455mm
5 (2 reviews)
Product Code: 497095
Knauf Insulation DriTherm 37 Cavity Insulation Slab 75mm 1200mm x 455mm
Retail price

£36.13

per pack
£30.11 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation DriTherm 37 Cavity Insulation Slab  50mm  1200mm x 455mm
5 (1 review)
Product Code: 497107
Knauf Insulation DriTherm 37 Cavity Insulation Slab 50mm 1200mm x 455mm
Retail price

£47.24

per pack
£39.37 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation Rocksilk RS45 50mm 7.20m2
Product Code: 221587
Knauf Insulation Rocksilk RS45 50mm 7.20m2
Retail price

£68.88

per pack
£57.40 ex. vat
£6.89per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation DriTherm 32 Cavity Insulation Slab 150mm 1200mm x 455mm
Product Code: 545715
Knauf Insulation DriTherm 32 Cavity Insulation Slab 150mm 1200mm x 455mm
Retail price

£69.48

per pack
£57.90 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation FrameTherm Roll 32 2800mm x 1140mm x 140mm
Product Code: 122531
Knauf Insulation FrameTherm Roll 32 2800mm x 1140mm x 140mm
Retail price

£138.35

per pack
£115.29 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation Rocksilk RS45 Slab 1200mm x 600mm x 100mm
Product Code: 221584
Knauf Insulation Rocksilk RS45 Slab 1200mm x 600mm x 100mm
Retail price

£77.99

per pack
£64.99 ex. vat
£15.60per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation Masonry Party Wall Slab 75mm 8.74m2
Product Code: 295475
Knauf Insulation Masonry Party Wall Slab 75mm 8.74m2
Retail price

£517.90

per pack
£431.58 ex. vat
£32.37per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation OmniFit® Slab 50mm 1200x600 8.64m2
Product Code: 734014
Knauf Insulation OmniFit® Slab 50mm 1200x600 8.64m2
Retail price

£51.73

per pack
£43.11 ex. vat
£4.31per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation OmniFit® Slab 140mm 1200x600 2.88m2
Product Code: 734008
Knauf Insulation OmniFit® Slab 140mm 1200x600 2.88m2
Retail price

£92.93

per pack
£77.44 ex. vat
£23.23per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation FrameTherm Roll 35 3900mm x 1140mm x 140mm
5 (1 review)
Product Code: 705826
Knauf Insulation FrameTherm Roll 35 3900mm x 1140mm x 140mm
Retail price

£92.48

per pack
£77.07 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation DriTherm 37 Cavity Insulation Slab 85mm 1200mm x 455mm
Product Code: 497094
Knauf Insulation DriTherm 37 Cavity Insulation Slab 85mm 1200mm x 455mm
Retail price

£46.21

per pack
£38.51 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation Timber Frame Party Wall Slab 60mm 11.52m2
Product Code: 295477
Knauf Insulation Timber Frame Party Wall Slab 60mm 11.52m2
Retail price

£144.88

per pack
£120.73 ex. vat
£9.05per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation Frametherm Roll 40 140mm 2x570 9.14m2
Product Code: 961304
Knauf Insulation Frametherm Roll 40 140mm 2x570 9.14m2
Retail price

£167.04

per pack
£139.20 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation Masonry Party Wall Slab 100mm 6.55m2
Product Code: 295474
Knauf Insulation Masonry Party Wall Slab 100mm 6.55m2
Retail price

£75.30

per pack
£62.75 ex. vat
£6.27per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation OmniFit® Insulation Roll 3400mm x 1200mm x 200mm
Product Code: 734018
Knauf Insulation OmniFit® Insulation Roll 3400mm x 1200mm x 200mm
Retail price

£56.35

per pack
£46.96 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation FrameTherm Roll 35 6000mm x 1140mm x 90mm
Product Code: 665075
Knauf Insulation FrameTherm Roll 35 6000mm x 1140mm x 90mm
Retail price

£110.89

per pack
£92.41 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation OmniFit® Insulation Roll 4550mm x 1200mm x 150mm
Product Code: 734019
Knauf Insulation OmniFit® Insulation Roll 4550mm x 1200mm x 150mm
Retail price

£119.05

per pack
£99.21 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation OmniFit® Slab 70mm 1200x600 5.76m2
Product Code: 734011
Knauf Insulation OmniFit® Slab 70mm 1200x600 5.76m2
Retail price

£181.72

per pack
£151.43 ex. vat
£22.71per item
Enter postcode for local availability
Select collection branch for local availability
Knauf Insulation FrameTherm Roll 32 4500mm x 1140mm x 90mm
Product Code: 949787
Knauf Insulation FrameTherm Roll 32 4500mm x 1140mm x 90mm
Retail price

£139.38

per pack
£116.15 ex. vat
Enter postcode for local availability
Select collection branch for local availability
Showing 1—19 items of 19

Related products

An A1 Non-Combustible Rock Mineral Wool slab, manufactured using Knauf Insulation's unique ECOSE® Technology and designed for use in multiple applications including internal partitions, timber and metal studs, and in between timber rafters and floor joists.
Depth
50 mm
Length
1200 mm
Thickness
50 mm
Width
600 mm
Material
Rock Mineral Wool
Colour
Brown
Acoustic
Yes
Thermal Conductivity
0.035 W/mK
Coverage
7.2m2
Pack Quantity
10
Certifications Met
Euroclass A1 Reaction to Fire Classification, Eurofins Gold
Type
Insulation Slabs
Brand Name
Knauf Insulation
Range Description
Rock Universal Slab

£68.88

per pack (Inc. VAT)
Loading...
Loading...
An A1 Non-Combustible Rock Mineral Wool slab, manufactured using Knauf Insulation's unique ECOSE® Technology and designed for use in multiple applications including internal partitions, timber and metal studs, and in between timber rafters and floor joists.
Range Description
Rock Universal Slab
Brand Name
Knauf Insulation
Length
1200 mm
Thickness
100 mm
Width
600 mm
Material
Rock Mineral Wool
Coverage
3.6m2
Acoustic
Yes
Thermal Conductivity
0.035 W/mK
Pack Quantity
5
Certifications Met
Euroclass A1 Reaction to Fire Classification, Eurofins Gold
Type
Insulation Slabs

£77.99

per pack (Inc. VAT)
Loading...
Loading...
5 (2 reviews)
This insulation board by Kay-Metzeler is manufactured in expanded polystyrene that features high compressive strength. This board is covered with a highly resistant fibre-woven film and this covering overhangs the board by 50mm, enabling the overlaps to be taped to form a continuous, seamless surface. Ideal under screed as an insulation solution. Provides coverage area of 34.56m2.
Length
2400 mm
Thickness
25 mm
Width
1200 mm
Material
Polystyrene
Coverage
34.56m2
Brand Name
Kay Metzeler
Manufacturer Model No
FS688

£16.58

per sheet (Inc. VAT)
Loading...
Loading...
Celotex CW4000 is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing. Available in thicknesses from 40mm to 100mm, it can be considered for use in partial fill cavity wall applications.
Length
1200 mm
Thickness
50 mm
Width
450 mm
Material
PIR
Coverage
0.54 m2
Fire Retardant
N
Acoustic
N
Thermal Conductivity
0.022 W/mK
Certifications Met
BBA Certificate Number 16/5343
Type
Insulation Boards
Range Description
Insulation Board
Brand Name
Celotex
Country Origin
UK
Manufacturer Model No
CW4050
Made To Order
N

£8.17

per sheet (Inc. VAT)
Loading...
Loading...
Knauf Insulation Rocksilk RS45 50mm 7.20m2
Knauf Insulation Rocksilk RS45 50mm 7.20m2
An A1 Non-Combustible Rock Mineral Wool slab, manufactured using Knauf Insulation's unique ECOSE® Technology and designed for use in multiple applications including internal partitions, timber and metal studs, and in between timber rafters and floor joists.
£68.88 per pack (Inc. VAT)
Knauf Insulation Rocksilk RS45 Slab 1200mm x 600mm x 100mm
Knauf Insulation Rocksilk RS45 Slab 1200mm x 600mm x 100mm
An A1 Non-Combustible Rock Mineral Wool slab, manufactured using Knauf Insulation's unique ECOSE® Technology and designed for use in multiple applications including internal partitions, timber and metal studs, and in between timber rafters and floor joists.
£77.99 per pack (Inc. VAT)
25mm x 2400mm x 1200mm Kay-Metzeler Expanded Polystyrene Insulation EPS70
25mm x 2400mm x 1200mm Kay-Metzeler Expanded Polystyrene Insulation EPS70
This insulation board by Kay-Metzeler is manufactured in expanded polystyrene that features high compressive strength. This board is covered with a highly resistant fibre-woven film and this covering overhangs the board by 50mm, enabling the overlaps to be taped to form a continuous, seamless surface. Ideal under screed as an insulation solution. Provides coverage area of 34.56m2.
£16.58 per sheet (Inc. VAT)
50mm x 1200mm x 450mm Celotex PIR Cavity Wall Insulation Board CW4000
50mm x 1200mm x 450mm Celotex PIR Cavity Wall Insulation Board CW4000
Celotex CW4000 is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing. Available in thicknesses from 40mm to 100mm, it can be considered for use in partial fill cavity wall applications.
£8.17 per sheet (Inc. VAT)