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Cavity and Internal Wall Insulation

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Shop our high quality cavity and internal wall insulation products to stop heat from escaping through your walls. Our products can be used to insulate a wide range of applications, available in a choice of lengths & widths.
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Knauf Insulation Acoustic Partition Roll
Product Code: 9000197591

Knauf Insulation Acoustic Partition Roll

From £43.25 each
From £36.04 ex vat
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Knauf Insulation Rocksilk RS45
Product Code: 9000197592

Knauf Insulation Rocksilk RS45

From £37.43 per pack
From £31.19 ex vat
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Showing 1—26 items of 26

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4.3 (4 reviews)
Precision made, high performance structural concrete lintels
Depth
100 mm
Height
65 mm
Length
1050 mm
Weight
14.981 kg
Material
Concrete
Colour
Grey
Type
Concrete Lintel
Made To Order
N
Manufacturer Model No
P100105
Brand Name
Supreme Concrete
£14.15
each (Inc. VAT)
+
1050 mm
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This multi-purpose insulation board is suitable for a number of applications including roof, wall and floor systems. Featuring foil facings, this board is manufactured from tough polyisocyanurate, with an ideal mix of blowing agents acquiring zero ozone depletion potential and a low global warming impact.
Range Description
Insulation Board
Manufacturer Model No
GA4000
Brand Name
Celotex
Length
2400 mm
Thickness
100 mm
Width
1200 mm
Material
PIR
Usage
Suspended Floor, Solid Floor, Partition Wall, Roof
Coverage
34.56 m2
Fire Retardant
N
Thermal Conductivity
0.022 W/mK
Type
Insulation Boards
£67.43
per sheet (Inc. VAT)
+
100 mm
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This TB4000 PIR insulation board by Celotex is ideal for overcoming thermal bridging. This board is a thin 20mm high-performance board suitable for use in a number of applications including roof, wall and floor systems.
Brand Name
Celotex
Range Description
Insulation Board
Manufacturer Model No
TB4020
Made To Order
N
Dimension 3
20.0
Dimension 1
2400.0
Dimension 2
1200.0
Length
2400 mm
Thickness
20 mm
Width
1200 mm
Material
PIR
Usage
Suspended Floor, Solid Floor, Partition Wall, Roof
Coverage
57.6 m2
Fire Retardant
Y
Thermal Conductivity
0.022 W/mK
Type
Insulation Boards
£33.84
per sheet (Inc. VAT)
+
20 mm
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This multi-purpose insulation board is suitable for a number of applications including roof, wall and floor systems. Featuring foil facings, this board is manufactured from tough polyisocyanurate, with an ideal mix of blowing agents acquiring zero ozone depletion potential and a low global warming impact.
Range Description
Insulation Board
Brand Name
Celotex
Manufacturer Model No
XR4000
Length
2400 mm
Thickness
200 mm
Width
1200 mm
Material
PIR
Usage
Suspended Floor, Solid Floor, Partition Wall, Roof
Coverage
17.28 m2
Fire Retardant
N
Thermal Conductivity
0.022 W/mK
Type
Insulation Boards
£221.83
per sheet (Inc. VAT)
+
200 mm
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Supreme Prestressed Textured Concrete Lintel 65mm x 100mm x 1050mm P100
Supreme Prestressed Textured Concrete Lintel 65mm x 100mm x 1050mm P100
Precision made, high performance structural concrete lintels
£14.15 each (Inc. VAT)
Celotex GA4100 General Application Insulation Board 100mm x 1200mm x 2400mm (2.88m²/Sheet)
Celotex GA4100 General Application Insulation Board 100mm x 1200mm x 2400mm (2.88m²/Sheet)
This multi-purpose insulation board is suitable for a number of applications including roof, wall and floor systems. Featuring foil facings, this board is manufactured from tough polyisocyanurate, with an ideal mix of blowing agents acquiring zero ozone depletion potential and a low global warming impact.
£67.43 per sheet (Inc. VAT)
Celotex TB4020 General Application Insulation Board 20mm x 1200mm x 2400mm (2.88m²/Sheet)
Celotex TB4020 General Application Insulation Board 20mm x 1200mm x 2400mm (2.88m²/Sheet)
This TB4000 PIR insulation board by Celotex is ideal for overcoming thermal bridging. This board is a thin 20mm high-performance board suitable for use in a number of applications including roof, wall and floor systems.
£33.84 per sheet (Inc. VAT)
Celotex XR4200 General Application Insulation Board 200mm x 2400mm x 1200mm (2.88m²/Sheet)
Celotex XR4200 General Application Insulation Board 200mm x 2400mm x 1200mm (2.88m²/Sheet)
This multi-purpose insulation board is suitable for a number of applications including roof, wall and floor systems. Featuring foil facings, this board is manufactured from tough polyisocyanurate, with an ideal mix of blowing agents acquiring zero ozone depletion potential and a low global warming impact.
£221.83 per sheet (Inc. VAT)