Insulation & Drylining
PIR Insulation Boards for Cardiff, delivered to site
PIR (polyisocyanurate) insulation boards are rigid foam boards with foil facings that give a lot of insulation for their thickness, used in floors, walls, pitched and flat roofs.
Whether it is a repair, an extension or a new build in Cardiff, we can supply the PIR insulation boards and deliver to site.

Your Cardiff delivery
- Nearby (straight line)
- Whitchurch (3 mi), Penarth (3 mi), Rhiwbina (4 mi)
- Postcode districts
- CF10, CF11, CF24
- Delivering to
- Cardiff, South Glamorgan
- Delivery
- Standard mainland delivery
- How it arrives
- Wrapped packs
- Daylight
- About 7h 50m on the shortest day
PIR Insulation Boards we supply in Cardiff
- General-purpose PIR boards2400 × 1200 mm foil-faced boards for floors, walls and roofs.
- Thermal laminate boardsPIR bonded to plasterboard.
- Foil tape and fixingsTo seal joints and fix boards.
- Flat roof boardsBoards for warm flat roof build-ups.
Working out quantities for your Cardiff job
Insulating 36 m² of rafters, floor or wall takes 14 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
Picking the right product
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.
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.
Planning the drop in Cardiff
Boards are light but bulky; they travel in wrapped packs and should be stored flat and dry. Cardiff is inside our standard mainland delivery area.
- For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
- With roughly 7h 50m of daylight in Cardiff around the shortest day, morning deliveries leave more working light for the job.
- On busy streets in Cardiff, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.
Common questions from Cardiff
How many PIR boards do I need?
Divide the area by 2.88 m² (one 2400 × 1200 board) and add about 5 to 10 percent for cutting.
Do you deliver PIR insulation boards to Cardiff?
Yes. We deliver across Cardiff, including CF10, CF11, CF24. Cardiff is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.
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 you deliver PIR insulation boards to a site with restricted access in Cardiff?
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.
Also delivering PIR insulation boards nearby
- PIR Insulation Boards in Whitchurch
- PIR Insulation Boards in Penarth
- PIR Insulation Boards in Rhiwbina
- PIR Insulation Boards in Caerphilly
- PIR Insulation Boards in Barry
- PIR Insulation Boards in Risca
Complete your Cardiff order
Send your list, get a delivered price
Tell us what you need and where it is going. We check the quantities and come back with a delivered price before you commit.
