Insulation & Drylining
PIR Insulation Boards for Seaham, 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.
Need PIR insulation boards on site in Seaham? Tell us what you are building and we will work out the quantities and price it delivered.

Seaham delivery at a glance
- Delivering to
- Seaham, Durham
- Delivery
- Standard mainland delivery
- Daylight
- About 7h 12m on the shortest day
- How it arrives
- Wrapped packs
- Postcode districts
- SR7, SR8, DH6
- Nearby (straight line)
- Houghton-le-Spring (5 mi), Sunderland (5 mi), Peterlee (5 mi)
PIR Insulation Boards available for Seaham delivery
- Cavity wall boardsBoards sized for partial-fill cavity insulation.
- Thermal laminate boardsPIR bonded to plasterboard.
- General-purpose PIR boards2400 × 1200 mm foil-faced boards for floors, walls and roofs.
- Foil tape and fixingsTo seal joints and fix boards.
Things to check before you order
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.
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.
Planning the drop in Seaham
Boards are light but bulky; they travel in wrapped packs and should be stored flat and dry. Seaham is inside our standard mainland delivery area.
- Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
- If neighbours share the access, it helps to let them know a lorry is coming.
- Mention any overhead cables, low branches or narrow gateways, because they decide whether a crane offload is possible.
A quick quantity check
Insulating 24 m² of rafters, floor or wall takes 9 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
Your questions answered
How thick should PIR insulation be?
It depends on where it goes and the U-value required. Pitched roofs often need 100 mm or more between and under rafters; floors and walls vary. Use the maker's U-value tables or ask your designer.
Can I add other materials to my Seaham 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.
Do you deliver PIR insulation boards to Seaham?
Yes. We deliver across Seaham, including SR7, SR8, DH6. Seaham is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.
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.
PIR Insulation Boards in neighbouring towns
- PIR Insulation Boards in Houghton-le-Spring
- PIR Insulation Boards in Sunderland
- PIR Insulation Boards in Peterlee
- PIR Insulation Boards in Washington
- PIR Insulation Boards in Chester-le-Street
- PIR Insulation Boards in Durham
Other materials for Seaham sites
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.
