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Celotex GA4000

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Celotex GA4000 is a general purpose insulation board for floors, walls and roofs. It has long been at the heart of the Celotex product range providing the user with a range of thermal insulation solutions.

With low emissivity textured aluminium foil facings, Celotex GA4000 is manufactured from rigid polyisocyanurate (PIR) using a blowing agent that has low global warming potential (GWP) and zero ozone depletion potential (ODP).

  • Board size: 1200mm x 2400mm
  • Thickness (mm): 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100
  • Lambda: 0.022W/mK

With Celotex GA4000, you are specifying an insulation board that:

  • Is suitable for a number of applications including roof, wall and floor systems
  • Achieves an A+ rating when compared to the BRE Green Guide
  • Is certified under BBA certificate number 95/3197 and 09/4667
  • Includes low emissivity foil facings giving improved thermal insulation
  • Is easy to cut and shape
  • Future proofs the energy performance of new and existing buildings

For full and detailed product information, please download the Celotex GA4000 product datasheet.

Concrete slab floor

Between & under joists

Loft conversions

Timber frame wall lining

Ventilated lead covering

Beam & block floors

Upgrading concrete slab floors

Timber frame wall sheathing

Between rafters

Single timber frame wall lining

Insulating at ceiling level

Garage conversions

Rainscreen cladding

Pitched roof sarking

Between & over rafters

Balconies & terraces

Between & under rafters

Suspended timber floors

Pitched roof upgrades

Steel stud framed walls

Basements

Igloo to cosy home over night

My house has been transformed from an igloo to a cosy home over night. I was recommended to use ...
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Colin Felton   |   

Easy to use

I bought various thicknesses of Celotex GA4000 which gave superb adaptability and ease of use. The ...
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Trevor Lee   |   

Celotex Handy Guide

Download the useful Handy Guide now.

Celotex Handy Guide

Download the useful Handy Guide now.

U-Value Calculator

This professional calculator allows you to specify your desired U-value and it will immediately calculate the required insulation thickness and product. Click here to use

SAP Calculator

The Celotex Technical Advisory Service offers a SAP calculation service to save you the time. Find out more

SAP Services

The Celotex Technical Centre can provide low cost SAPs and EPCs with a 48 hour turnaround. Read more

Sustainability

Celotex achieves an A+ rating when compared to the BRE Green Guide 2008. Visit our sustainability page for more information. Read more

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