Glass fleece faced PIR board, 50 mm termPIR WS

Rigid polyisocyanurate (PIR) insulation boards suit projects where insulation thickness must be carefully planned. A choice of facings and edge profiles makes them suitable for different building assemblies. At SteelProfil we compare boards by application, thermal performance and the finish planned for the roof, wall or floor.

A board with low thermal conductivity can deliver the required thermal resistance in a relatively thin layer. This is helpful when door thresholds set the finished floor level or headroom limits insulation depth in a loft. The final thickness follows from a calculation for the entire assembly. We help match the board to the design and surrounding materials.

The facing affects how boards are joined and finished. Compressive strength matters where the insulation carries loads. Compare the manufacturer’s intended use for floors, flat roofs and walls. A board compatible with the specified finish helps the installer achieve the insulation build-up as designed.

Regular board sizes make it easier to plan coverage and joints. Profiled edges can help boards fit closely, while their low weight makes them easier to carry between floors. For a new building or renovation, select the board and its thickness for the space available. Close joints and the correct layer sequence allow the PIR core to perform as intended. An above-rafter system can form a continuous insulation layer over the timberwork.

• High thermal resistance helps make the most of the available construction depth.
• Rigid boards make it easier to plan the layout and cut insulation to fit.
• Choose a facing suitable for the intended use.

SteelProfil supplies first- and second-grade PIR insulation, including lots available from stock. We help assess dimensions, thickness and condition against your project. For second-grade boards, check the specific lot’s condition and suitability for the intended layer. Compare the cost of usable material for the job as a whole.

Compare offers for the whole area to be insulated. We can quote for boards and the materials needed to join them. Send the type of construction, its dimensions and the planned finish so we can suggest a suitable PIR board and a combination of sizes for the job.