PIR Insulation Boards delivery in Rhiwbina

Choosing from our PIR insulation boards range

• 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.

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

How delivery works in Rhiwbina

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

• Mention any overhead cables, low branches or narrow gateways, because they decide whether a crane offload is possible.
• Give us the full postcode for the drop point; deliveries around CF14 are priced to the exact address.
• With roughly 7h 49m of daylight in Rhiwbina around the shortest day, morning deliveries leave more working light for the job.

PIR Insulation Boards: choosing well

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.

Wales has its own Approved Documents, including its own Part L for energy efficiency, and building control is handled by the local authority or a registered approver.

Your questions answered

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

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 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 trades and homeowners in Rhiwbina?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.

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.