PIR Insulation Boards for Darwen, delivered to site

What PIR insulation boards can we deliver to Darwen?

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

Before you order PIR insulation boards

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.

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.

Before your Darwen delivery arrives

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

• If the site is up a shared drive or behind other houses, tell us the distance from the road.
• For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.

Estimating your PIR insulation boards

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

Ordering PIR insulation boards for Darwen: FAQs

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

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.

Can I add other materials to my Darwen delivery?

Yes. Put everything on one list, from PIR insulation boards to fixings and PPE, and we will price it as one delivery where the products can travel together.

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.

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.