PIR Insulation Boards for Farnworth, delivered to site

Which PIR insulation boards can you order in Farnworth?

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

Working out quantities for your Farnworth job

Insulating 30 m² of rafters, floor or wall takes 12 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

Choosing 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.

Fire considerations

PIR is a combustible product. Building regulations restrict combustible materials in some situations, such as external walls of taller buildings; check what applies.

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.

Before your Farnworth delivery arrives

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

• Weight limits on bridges or private roads near the site matter for larger lorries, so mention any you know of.
• For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.

PIR Insulation Boards questions

How soon can PIR insulation boards be delivered in Farnworth?

We confirm the delivery date when we price your order, before you commit. It depends on the product, the quantity and whether it is a stock line or made to order.

Is there a minimum order for delivery to Farnworth?

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.

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.

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.