Insulated Plasterboard
Our high-performance thermal insulated plasterboard solutions offer the dual benefits of effective thermal insulation and a finished plasterboard surface.
Our insulated plasterboard is an ideal solution for walls, flat roofs, internal walls, and ceilings, featuring integrated insulation for enhanced energy efficiency. By using this product, you can help achieve Part L of the Building Regulations. With moisture-resistant options available for wet rooms, shower rooms, and bathrooms, our insulated plasterboard is fully tested and accredited to ensure quality and performance.
Contact our team of friendly experts for technical support and a quick turnaround on pricing.

Siniat Thermal EPS
Plasterboard laminated to expanded polystyrene to provide thermal insulation.
- Thicknesses: 22,30 and 50 mm
- Widths: 1200 mm
- Lengths: 2400 mm
- Edge: TE
Siniat Thermal XP
Plasterboard laminated to extruded polystyrene with greater thermal insulation compared to EPS.
- Thicknesses: 27, 35 and 55 mm
- Widths: 1200 mm
- Lengths: 2400 mm
- Edge: TE
Siniat Thermal PIR
Plasterboard laminated to PIR insulation incorporating a vapour control layer to reduce condensation risk.
- Thicknesses: 37.5, 52.5, 62.5, and 72.5 mm
- Widths: 1200 mm
- Lengths: 2400 mm
- Edge: TE
British Gypsum Gyproc ThermaLine Basic
Insulated plasterboard that can improve thermal performance and help reduce energy bills.
- Thicknesses: 22, 30, and 40 mm
- Widths: 1200 mm
- Lengths: 2400 mm
- Edge: TE
British Gypsum Gyproc ThermaLine PIR
Insulated plasterboard that can improve thermal performance and help reduce energy bills. It can also help keep rooms cooler in the summer.
- Thicknesses: 38, 53, 63, 78, and 93mm
- Widths: 1200 mm
- Lengths: 2400 mm
- Edge: TE
British Gypsum Gyproc ThermaLine Plus
Low-profiled, foam backed plasterboard, allowing the regulation of room temperature and reduction of condensation. while saving space.
- Thicknesses: 27, 35, 40, and 48 mm
- Widths: 1200 mm
- Lengths: 2400 mm
- Edge: TE
Knauf Drywall XPS Thermal Laminate
Offers enhanced thermal performance at a reduced thickness, ideal where an enhanced level of thermal insulation is required.
- Thickness: 27, 35, 40, 45, and 55 mm
- Width: 1200 mm
- Lengths: 2400 mm
- Edge: TE
Frequently asked questions
What is Insulated Plasterboard?
How is Insulated Plasterboard Fixed to a Wall?
Insulated Plasterboard or Separate Insulation and Plasterboard?
What is the Thickness of Insulated Plasterboard?
How Does Insulated Plasterboard Help Achieve Part L of the Building Regulations?
Are there any environmental benefits to Standard Plasterboard?
Many plasterboards are made from recycled materials and can be recycled at the end of their lifespan. Check with your local depot for specific details.
Can Insulated Plasterboard Be Dot and Dabbed?
Dot and dab does not form a robust and reliable air barrier and as such is not a recommended method for insulated plasterboard. It is typically fixed mechanically using screws or nails.
Need a quote or technical support?
Contact your local depot or alternatively complete the form and a member of our friendly and knowledgeable team will get back to you asap.