Order PIR insulation boards for delivery in Witham

Choosing from our PIR insulation boards range

• Thermal laminate boardsPIR bonded to plasterboard.
• 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.

How delivery works in Witham

Boards are light but bulky; they travel in wrapped packs and should be stored flat and dry. Witham 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.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
• With roughly 7h 46m of daylight in Witham around the shortest day, morning deliveries leave more working light for the job.

Before you order 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.

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

Common questions from Witham

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.

Can I add other materials to my Witham 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.

How soon can PIR insulation boards be delivered in Witham?

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.