PIR Insulation Boards for St Helens, delivered to site

PIR Insulation Boards available for St Helens delivery

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

Quantities: a worked example

Insulating 12 m² of rafters, floor or wall takes 5 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

Getting PIR insulation boards onto your St Helens site

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

• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
• In summer St Helens gets around 17h 02m of daylight, but early deliveries still beat the traffic and give the longest working day.

Getting the right PIR insulation boards

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.

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.

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.

Ordering PIR insulation boards for St Helens: FAQs

Is there a minimum order for delivery to St Helens?

There is no fixed minimum. For very small orders we will tell you honestly if the delivery cost outweighs the materials, so you can decide.

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 PIR be used in external walls?

In some situations, but building regulations restrict combustible insulation in external walls of certain buildings. Check the rules for your building.

Do you deliver PIR insulation boards to St Helens?

Yes. We deliver across St Helens, including WA10, WA9, WA11, L35. St Helens is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.