Order PIR insulation boards for delivery in Chesham

Which PIR insulation boards can you order in Chesham?

• General-purpose PIR boards2400 × 1200 mm foil-faced boards for floors, walls and roofs.
• Foil tape and fixingsTo seal joints and fix boards.
• Thermal laminate boardsPIR bonded to plasterboard.
• Flat roof boardsBoards for warm flat roof build-ups.
• Cavity wall boardsBoards sized for partial-fill cavity insulation.

Quantities: a worked example

Insulating 36 m² of rafters, floor or wall takes 14 boards of 2400 × 1200 mm including offcuts. The thickness depends on the U-value you need, so check it before you order. Try the insulation calculator

Planning the drop in Chesham

Boards are light but bulky; they travel in wrapped packs and should be stored flat and dry. Chesham is inside our standard mainland delivery area.

• For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
• With roughly 7h 48m of daylight in Chesham around the shortest day, morning deliveries leave more working light for the job.
• If the site is up a shared drive or behind other houses, tell us the distance from the road.

Getting the right PIR insulation boards

Sealing joints

Tape the joints with foil tape so the foil layer works as a continuous vapour control layer where the design relies on it.

Thickness for the U-value

The thickness you need depends on the U-value the building regulations require and the rest of the build-up. Manufacturers publish U-value tables; your designer or building control will confirm.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

PIR Insulation Boards questions

Is PIR better than mineral wool?

PIR insulates more per millimetre, so it suits tight spaces. Mineral wool is non-combustible, cheaper per square metre and better for sound.

What is the foil for?

The foil facing reflects heat, protects the foam and, when joints are taped, can act as a vapour control layer.

Can you deliver PIR insulation boards to a site with restricted access in Chesham?

Usually, yes. Tell us about the access when you ask for a price and we will plan the vehicle and offload, or say if a smaller vehicle is needed.

Do you deliver PIR insulation boards to Chesham?

Yes. We deliver across Chesham, including HP5, HP6, HP7. Chesham is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.