Shopping Basket

Order before 10am for next working day delivery.  Subject to product availability locally, and vehicle delivery slots

Celotex GD5000 Plaster Dab Insulated Plasterboards

Specialist Celotex Product, available in most thickness’s, but in reasonably large pack quantities.
Generally, we are unable to split the packs / sell boards individually. Some depots may make exceptions if pack quantity levels are exceeded. Short lead-times apply to GD5025, GD5040, GD5050 and GD5060 boards

Celotex GD5000 installed on an external wall using plaster dab wall application

Product Applications

Celotex GD5000 is purpose designed for providing thermal insulation and plasterboard as one product. Providing better U Values and thinner solutions in dot and dab solid wall upgrades and other dry-lining applications. GD5000 comprises premium PIR insulation bonded to 9.5mm tapered edge plasterboard, with a thermal conductivity of 0.021 W/mK.

GD5000 can be specified for use in a variety of applications including:

  • The "underneath" layer of insulation in 'between and under' rafter and joist applications
  • Solid masonry walls
  • Timber frame lining applications

Drop-down price list / Add to shopping basket

Click to Buy: Celotex GD5000 Plaster Dab Insulated Plasterboards

Additional information on this product is provided at: Click Here.

Procedure: Select products below to see pricing structure | Use product tick-boxes to select required products | Add to Basket

Our Prices are currently being revised please contact us for the latest prices

Price and Availability Information

Presently there are no availability restrictions, apart from manufacturing lead-times and minimum quantity order levels on certain product sizes.
Please observe the 'Star Rating' indicators to assess availability.

Excellent = Product Availability Excellent Good = Product Availability Good Fair = Product Availability Fair Poor =  Product Availability Poor Undetermined = Product Availability Undetermined
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations

Product Characteristics

Celotex GD5000 is a plasterboard thermal laminate comprising of premium PIR insulation bonded to 9.5mm tapered edge plasterboard, with a thermal conductivity of 0.021 W/mK.

The product’s kraft paper facings, with their high elasticity and high tear resistance, are ideal for adhesively bonded (dot & dab) installations.

Designed specifically for internal dry-lining systems, GD5000 can be used to upgrade internal solid walls or provide a second layer of insulation including timber frame constructions and between and under pitched and flat roof applications

Product Advantages

Celotex GD5000 is designed to achieve better U Values and thinner solutions in adhesively bonded (dot & dab) applications.

It offers a super low lambda performance of 0.021 W/mK with kraft paper facings, GD5000 is manufactured from rigid polyisocyanurate (PIR) using a blowing agent that has low global warming potential and zero ozone depletion potential.

Provides the highest performing PIR plasterboard thermal laminate, offering up to 15% thinner solutions than typical PIR

Can achieve up to 30% better U Values using comparable build ups, assisting in delivering enhanced carbon savings

Allows common target U Values to be met with the thinnest possible solution, allowing 50% less insulation than some other certified systems helping optimise internal living space

Is suitable for achieving thinner solutions in plaster dab bonded dry lining applications

Available and accredited for a wide range of installation techniques providing speed and flexibility to the installer, offering time and cost savings

Offers the installer maximum flexibility and installation speed due to the tapered edge plasterboard 

Provides reliable long-term energy savings for buildings Is suitable for both new build and refurbishment projects

Can be easily used to upgrade to current building regulation standards

Can be used in pitched roof, flat roof and wall applications

Reduces thermal bridges formed by mortar joints

Ideal where no cavity exists

Provides a vapour control layer (VCL) when board joints are taped and jointed

Particularly suited to refurbishment projects

Product Specifications

Celotex GD5000 PIR Insulated Plasterboards / Thermal Laminate Wallboards

Product Code

Board dimensions

Thickness (mm)

λ Value (w/mK)

R-value (m²K/W)

U Value (W/m²K)

Weight (kg/m²)

Unit weight (kg)

Celotex GD5025 26 x 1.2 x 2.4 = 74.88m² 37.5 0.021 1.25 0.83 9.36
Celotex GD5040 22 x 1.2 x 2.4 = 63.36m² 52.5 0.021 1.95 0.51 9.84 28.34
Celotex GD5050 18 x 1.2 x 2.4 = 51.84m² 62.5 0.021 2.40 0.42 10.16 29.26
Celotex GD5060 16 x 1.2 x 2.4 = 46.08m² 72.5 0.021 2.90 0.34 10.51 30.27

Thermal conductivity / Lambda value (W/mK) = 0.021 | Compressive strength (kPa) = ≥ 120 | Fire resistance Euroclass B-s1,d0 | Please Note: R-Value = Thermal Resistance; U Value = Thermal Transmittance Co-efficient; Compressive strength = kiloPascals; Vapour resistance = MegaNewton seconds per gram.

Product Information and Certification

Links to manufacturer's information. Click to download in a separate browser window.

Certified under BBA certificate number 12/4926 and is Ofgem approved

Celotex GD5000 Is certified under BBA certificate number 12/4926, and comprises a polyisocyanurate rigid foam insulation core with a thermal conductivity of 0.022 W/mK with aluminium foil/kraft paper facings on both sides bonded to a layer of tapered edge plasterboard.

Celotex GD5000 is CFC/HCFC free with zero ODP and low GWP and CE marking compliant to BS EN 13950, and is manufactured in accordance with BS EN 13950 quality management system ISO 9001 and environmental management system ISO 14001.

All products must be installed in accordance with instructions issued by Celotex

  • Celotex PL4000

    Celotex PL4000, PIR insulation bonded to 12.5mm tapered edge plasterboard for plaster dab and mechanical fixing.

    Click for more information

    Celotex TB4000, GA4000, XR4000  partial fill cavity walls board dimensions 1.2 x 2.4 metres
  • Celotex GS5000

    Celotex GS5000 9.5mm tapered edge plasterboard bonded to premium PIR insulation designed for mechanical fixing.

    Click for more information

    Celotex GS5000 9.5mm plasterboard bonded to PIR insulation designed for mechanical fixing.
  • Kingspan K17

    Kooltherm K17 high performance insulated phenolic wallboard laminate plasterboard for Plaster Dab and Adhesive Bonding

    Click for more information

    Kooltherm K17 insulated phenolic laminate plasterboard for Plaster Dab fixing
  • Gyproc ThermaLine

    Gyproc ThermaLine Basic, Plus and Super thermal laminates plaster-boards insulated with Polystyrene, PIR and Phenolic

    Click for more information

    Gyproc Thermaline Basic, Plus and Super bonded to Polystyrene, PIR and Phenolic

Product Installation - Celotex GD5000

Please review the Celotex PL4000 Insulated Plasterboard Installation Advice - Click Here

Manufacturer's Contact Details

Celotex Limited

Lady Lane Industrial Estate, Hadleigh, Ipswich, Suffolk, IP7 6BA

Celotex Technical Advisory Service.

Telephone: 0901 996 0100 (30p per minute) - Fax: 01473 820 889
Web sites: Celotex Home Page / Celotex U-Value Calculator.

Our Contact Details

Sales Office only:
Insulation Online Limited, 39 Normandy Road
, Worthing, West Sussex, BN14 7DX

Telephone: 0333 9000 989

Facsimile: 0333 7000 797


Web site:

delivering the very best products at the very best prices