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British Gypsum  |  SKU: TP-383834

38mm British Gypsum Gyproc Thermaline Tapered Edge Plasterboard - 2400mm x 1200mm

£58.51 Ex VAT
£70.21 Inc VAT
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38mm thick Gyproc ThermaLine PIR, consisting of 12.5mm Gyproc WallBoard binded to CFC and HCFC-free, high performance polyisocyanurate foam with two integral vapour control layers. Designed to be used in both refurbishment and new build for walls, ceiling, room in the roof and window reveals where a high level of cost effective thermal insulation is required to reduce heat loss from buildings as part of our British Gypsum BBA approved systems.

  • CFC and HCFC free.
  • Faced with ivory coloured Gyproc WallBoard and backed with pale yellow polyisocyanurate foam.
  • Thermal conductivity of Gyproc WallBoard is 0.19W/mK.
  • Thermal conductivity of PIR foam is 0.022W/mK.
  • Zero Ozone Depletion Potential and less than 5 Global Warming Potential.
  • Can be plastered with either Thistle BoardFInish or Thistle MultiFinish.
  • Incorporates 12.5mm Gyproc WallBoard to provide additional fire and acoustic performance.
  • Easy installation.
  • Compiles to BS 476 (Part 6 and Part 7), BS EN 13501-1 and EN 13950: 2014.
  • Certified to BES 6001.

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  • Size
    2400mm x 1200mm
  • Thickness
    38mm
  • Length
    2400mm
  • Width
    1200mm
  • Material
    Gypsum Plasterboad & PIR

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What is Celotex PIR Insulation Board?

Celotex is a brand of Polyisocyanurate (PIR) insulation board - a type of rigid foam insulation board backed with a foil layer, ideal for its exceptional thermal performance. It is a strong and light type of foam insulation board that keeps structures warm by trapping air inside. PIR insulation is lightweight, durable, and offers excellent fire resistance and thermal insulating properties, making it a super DIY-friendly solution that can easily be cut to size to fit rafters, joists and stud walls, and used as Cavity Wall Insulation. We also sell a Celotex PIR Insulated Plasterboard which is ideal to save time in stud wall applications. 

How to Install Celotex Insulation Board

Due to it’s versatile nature, there are many different uses for PIR Insulation and therefore many different ways to correctly install it. However, generally PIR insulation should be purchased to fit the depth of the cavity or space it is to fill. It can be cut to size to fit the height and width of cavities, joists and rafters using a sharp utility knife or handsaw for thicker boards. It is typically designed to be friction-fit to a space, meaning the boards should fit tightly and stay easily in place with no additional fixtures and fittings.

For precise installation instructions for your specific use case, it is recommended to consult your builder, architect or building inspector to ensure installation complies with building regulations. 

Celotex vs Recticel

Celotex and Recticel are both brands of foil-faced PIR Insulation board available in a range of thicknesses. They are comparable products made from similar materials and methods and from a construction perspective they have the same Fire Rating (Euroclass F Reaction to Fire classification, according to BS EN 13501-1)  and thermal conductivity value of 0.022 W/m.K and so are suitable for largely the same purposes and projects. 

Celotex U-Value Calculator

Use the Celotex U-Value Calculator to help calculate the correct u-value of your project to ensure it complies to all of the required building regulations.