Thermal & Insulated Plasterboard

Improve heat retention and insulation with our thermal plasterboard range. These insulated plasterboards combine reliable plaster facing with built-in insulation, making them ideal for lining cold exterior walls, lofts, or upgrading older properties. Quick to install and built for efficiency, they help keep energy costs down while delivering a clean, smooth finish. Our plasterboard range includes all the boards you need for a full job. You can also stock up on moisture-resistant boards, fire-resistant plasterboards, and acoustic plasterboard. 

Q: What is thermal plasterboard?

A: Thermal plasterboard, also known as insulated or insulating plasterboard, combines a general purpose plasterboard sheet with an insulating layer, typically made of materials like PIR (polyisocyanurate) foam. This combination enhances thermal performance, making it ideal for improving energy efficiency in buildings.

Q: What types of thermal plasterboard do you offer?

A: We stock a variety of thermal plasterboards to suit different insulation needs:

• Gyproc ThermaLine PIR Boards: These boards feature a high-performance PIR foam backing, offering excellent thermal insulation.

• Unilin Xtratherm Thermal Liner Boards: Combining a rigid PIR core with plasterboard, these boards provide a continuous vapour control layer, reducing the risk of condensation.

All our boards come in standard sizes of 2400mm x 1200mm, with varying thicknesses to meet specific insulation requirements.

Q: Where should I use thermal plasterboard?

A: Thermal plasterboards should be used in any space where you want to improve insulation. They’re commonly used for:

• External Walls: To reduce heat loss and improve energy efficiency.

• Ceilings: Especially in rooms below unheated spaces like lofts.

• Garage Conversions and Extensions: To meet building regulations for thermal performance.

It's important to ensure that the chosen board meets the specific U-value requirements for your project.

Q: How do I install thermal plasterboard?

A: Thermal plasterboard can be installed using the dot-and-dab method or mechanical fixings. Ensure that the wall surface is clean and dry before installation. Seal all joints with appropriate tape and jointing compound to maintain the integrity of the insulation layer.

Q: Do I need a vapour control layer with thermal plasterboard?

A: Many of our thermal plasterboards, such as the Unilin Xtratherm Thermal Liner, come with an integrated vapour control layer. This feature helps prevent condensation within the wall structure. However, always check the specific product details to confirm this feature.

Q: Can I decorate directly onto thermal plasterboard?

A: Yes, once installed and properly prepared, thermal plasterboard can be decorated like standard plasterboard. Ensure all joints are taped and filled, and the surface is primed before painting or wallpapering.

Q: Do you offer delivery for thermal plasterboard?

A: Yes, we provide delivery services for all our plasterboard products. Delivery options and timescales can be found on our website or by contacting your local JT Atkinson branch.