Insulation Thickness

Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes)
Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes) Floor Insulation
Vendor
Celotex
Regular price
from £11.90 £14.28
Sale price
from £11.90 £14.28
Regular price
£16.92
Unit price
per 
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Celotex 30mm TB4030 2.4m x 1.2m
Celotex 30mm TB4030 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£14.00 £16.80
Sale price
£14.00 £16.80
Regular price
£16.92
Unit price
per 
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Kingspan Kooltherm K103 Floorboard (All Sizes) 2400mm x 1200mm
Kingspan Kooltherm K103 Floorboard (All Sizes) 2400mm x 1200mm Floor Insulation
Vendor
Kingspan
Regular price
from £278.95 £334.74
Sale price
from £278.95 £334.74
Regular price
£0.00
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per 
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Kingspan Kooltherm K107 Pitched Roof Board (All Sizes) - 2.4m x 1.2m
Kingspan Kooltherm K107 Pitched Roof Board (All Sizes) - 2.4m x 1.2m Roof Insulation
Vendor
Kingspan
Regular price
from £236.54 £283.85
Sale price
from £236.54 £283.85
Regular price
£0.00
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Kingspan Kooltherm K106 90mm x 1.2m x 0.45m (2.16m2)
Kingspan Kooltherm K106 90mm x 1.2m x 0.45m All Insulation
Vendor
Kingspan
Regular price
£82.50 £99.00
Sale price
£82.50 £99.00
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU PIR 2.4m x 1.2m - All Sizes
IKO Enertherm ALU PIR 2.4m x 1.2m - All Sizes Insulation Board
Vendor
IKO PIR
Regular price
from £14.07 £16.88
Sale price
from £14.07 £16.88
Regular price
£0.00
Unit price
per 
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Kingspan Kooltherm K108 Cavity Board (All Sizes) 1200mm x 450mm
Kingspan Kooltherm K108 Cavity Board (All Sizes) 1200mm x 450mm All Insulation
Vendor
Kingspan
Regular price
from £96.50 £115.80
Sale price
from £96.50 £115.80
Regular price
£0.00
Unit price
per 
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Enhanced EPS 1200mm x 600mm - All Sizes
Enhanced EPS 1200mm x 600mm - All Sizes External Wall Insulation
Vendor
Jablite
Regular price
from £52.84 £63.41
Sale price
from £52.84 £63.41
Regular price
£0.00
Unit price
per 
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Actis Hybris 1200mm x 1145mm - All Sizes
Actis Hybris 1200mm x 1145mm - All Sizes All Insulation
Vendor
Actis
Regular price
from £814.40 £977.28
Sale price
from £814.40 £977.28
Regular price
£0.00
Unit price
per 
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HControl Hybrid 45mm x 1.6m x 6.25m (Roll size 10m2)
HControl Hybrid 45mm x 1.6m x 6.25m (Roll size 10m2) All Insulation
Vendor
Actis
Regular price
£79.33 £95.20
Sale price
£79.33 £95.20
Regular price
£0.00
Unit price
per 
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Kingspan Kooltherm K110 Soffit Board (All Sizes) - 2.4m x 1.2m
Kingspan Kooltherm K110 Soffit Board (All Sizes) - 2.4m x 1.2m All Insulation
Vendor
Kingspan
Regular price
from £0.00 £0.00
Sale price
from £0.00 £0.00
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 100mm x 2.4m x 1.2m
IKO Enertherm ALU 100mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£35.15 £42.18
Sale price
£35.15 £42.18
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 50mm x 2.4m x 1.2m
IKO Enertherm ALU 50mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£20.79 £24.95
Sale price
£20.79 £24.95
Regular price
£0.00
Unit price
per 
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Aluminium 2.5m Starter Track/ Base Profile - All Sizes
Aluminium 2.5m Starter Track/ Base Profile - All Sizes External Wall Insulation
Vendor
Wetherby
Regular price
from £7.59 £9.11
Sale price
from £7.59 £9.11
Regular price
£0.00
Unit price
per 
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K-Roc Rainscreen Slab (1.2m x 0.6m) - All Sizes
K-Roc Rainscreen Slab (1.2m x 0.6m) - All Sizes Insulation Board
Vendor
Kingspan
Regular price
from £61.06 £73.27
Sale price
from £61.06 £73.27
Regular price
£0.00
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per 
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IKO Enertherm ALU 90mm x 2.4m x 1.2m
IKO Enertherm ALU 90mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£35.21 £42.25
Sale price
£35.21 £42.25
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 150mm x 2.4m x 1.2m
IKO Enertherm ALU 150mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£53.52 £64.22
Sale price
£53.52 £64.22
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 75mm x 2.4m x 1.2m
IKO Enertherm ALU 75mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£29.73 £35.68
Sale price
£29.73 £35.68
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 25mm x 2.4m x 1.2m
IKO Enertherm ALU 25mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£14.07 £16.88
Sale price
£14.07 £16.88
Regular price
£0.00
Unit price
per 
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Kingspan Aquazone Infiltration (300M2 per roll)
Kingspan Aquazone Infiltration (300M2 per roll) All Insulation
Vendor
Kingspan
Regular price
£602.04 £722.45
Sale price
£602.04 £722.45
Regular price
£0.00
Unit price
per 
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High Density EPS 200E 60mm x 600mm x 1200mm (7.20m2 / 10 sheet pack)
High Density EPS 200E 60mm x 600mm x 1200mm (7.20m2 / 10 sheet pack) External Wall Insulation
Vendor
EPS
Regular price
£124.11 £148.93
Sale price
£124.11 £148.93
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 140mm x 2.4m x 1.2m
IKO Enertherm ALU 140mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£52.59 £63.11
Sale price
£52.59 £63.11
Regular price
£0.00
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per 
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Hammer Fixings Hit-M (Box of 100) - All Sizes
Hammer Fixings Hit-M (Box of 100) - All Sizes External Wall Insulation
Vendor
Insulation4Less
Regular price
from £6.05 £7.26
Sale price
from £6.05 £7.26
Regular price
£0.00
Unit price
per 
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Kingspan Kooltherm Cavity Closers - All Sizes
Kingspan Kooltherm Cavity Closers - All Sizes All Insulation
Vendor
Kingspan
Regular price
from £17.22 £20.66
Sale price
from £17.22 £20.66
Regular price
£0.00
Unit price
per 
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Eolis HC 135mm x 1.5m x 8m (12m2 Roll)
Actis Eolis HC 135mm x 1.5m x 8m (12m2 Roll)
Vendor
Actis
Regular price
£165.46 £198.55
Sale price
£165.46 £198.55
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 120mm x 2.4m x 1.2m
IKO Enertherm ALU 120mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£44.22 £53.06
Sale price
£44.22 £53.06
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 80mm x 2.4m x 1.2m
IKO Enertherm ALU 80mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£33.79 £40.55
Sale price
£33.79 £40.55
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 70mm x 2.4m x 1.2m
IKO Enertherm ALU 70mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£29.73 £35.68
Sale price
£29.73 £35.68
Regular price
£0.00
Unit price
per 
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K+A Scrim Adhesive 25Kg Bag
K+A Scrim Adhesive 25Kg Bag External Wall Insulation
Vendor
Wetherby
Regular price
£17.03 £20.44
Sale price
£17.03 £20.44
Regular price
£0.00
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per 
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4S Silicone 1.5mm K G White 25Kg
4S Silicone 1.5mm K G White 25Kg External Wall Insulation
Vendor
Wetherby
Regular price
£70.20 £84.24
Sale price
£70.20 £84.24
Regular price
£0.00
Unit price
per 
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333 Box Profile Composite Insulated Roof Panel - 1000/32 (Goosewing Grey) - All Sizes
333 Box Profile Composite Insulated Roof Panel - 1000/32 (Goosewing Grey) - All Sizes
Vendor
Cladco
Regular price
from £96.45 £115.74
Sale price
from £96.45 £115.74
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 110mm x 2.4m x 1.2m
IKO Enertherm ALU 110mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£45.35 £54.42
Sale price
£45.35 £54.42
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 60mm x 2.4m x 1.2m
IKO Enertherm ALU 60mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£26.83 £32.20
Sale price
£26.83 £32.20
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 40mm x 2.4m x 1.2m
IKO Enertherm ALU 40mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£20.15 £24.18
Sale price
£20.15 £24.18
Regular price
£0.00
Unit price
per 
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IKO Enertherm ALU 30mm x 2.4m x 1.2m
IKO Enertherm ALU 30mm x 2.4m x 1.2m Insulation Board
Vendor
IKO PIR
Regular price
£17.04 £20.45
Sale price
£17.04 £20.45
Regular price
£0.00
Unit price
per 
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Acrylic 1.5mm K T White 61577 25kg
Acrylic 1.5mm K T White 61577 25kg External Wall Insulation
Vendor
Wetherby
Regular price
£53.70 £64.44
Sale price
£53.70 £64.44
Regular price
£0.00
Unit price
per 
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Celotex Crown-Up Flat Roof PIR Insulation - All Sizes
Celotex Crown-Up Flat Roof PIR Insulation 1.5m x 12.20m - All Sizes All Insulation
Vendor
Celotex
Regular price
from £613.35 £736.02
Sale price
from £613.35 £736.02
Regular price
£0.00
Unit price
per 
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Celotex Crown-Fix Flat Roof PIR Insulation 2.7m x 25m - All Sizes
Celotex Crown-Fix Flat Roof PIR Insulation 2.7m x 25m - All Sizes All Insulation
Vendor
Celotex
Regular price
from £857.06 £1,028.47
Sale price
from £857.06 £1,028.47
Regular price
£0.00
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per 
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Insulation thickness is a crucial factor in determining the effectiveness of insulation. The thicker the insulation, the better it typically is at preventing heat transfer. However, the right thickness for a specific application depends on various factors including the location of installation, the desired energy efficiency, and budget constraints.

Grouped by Thickness

Thin Insulation (10mm - 40mm)

  • 10mm, 20mm, 30mm, 40mm: Ideal for spaces with limited room or where a slight boost in insulation is needed. Commonly used in walls or floors where space is at a premium.

 

Mid Range Insulation (50mm - 90mm)

  • 50mm, 60mm, 70mm, 75mm, 80mm, 90mm: A balanced choice for most residential and commercial properties. Suitable for walls, floors, and roofs, these thicknesses offer a good compromise between insulation performance and space.

 

Thick Insulation (100mm - 200mm)

  • 100mm, 110mm, 120mm, 125mm, 130mm, 140mm, 150mm, 170mm, 200mm: Best for areas that experience extreme temperatures or for those who want maximum energy efficiency. Often used in attics, basements, and external walls to provide superior thermal resistance.

 

How to Choose the Right Insulation Thickness

Determine the Purpose: If you're looking to insulate an attic in a cold region, you might lean towards the thicker range. For a small internal partition wall, thinner insulation might suffice.

Space Considerations: Ensure the chosen insulation fits comfortably within the space without compressing it, as compressed insulation loses efficiency.

Budget: While thicker insulation might offer better energy savings in the long run, it might also be more expensive upfront. Consider the long-term savings against the initial investment.

Building Regulations: Some regions have specific building codes that dictate the minimum insulation thickness. Ensure you're compliant with local regulations.

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