Insulation & Drylining
PIR Insulation Boards for Stevenage, 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.
SK Trade is a builders' merchant delivering PIR insulation boards into Stevenage, priced to your postcode and confirmed in writing.

Your Stevenage delivery
- Nearby (straight line)
- Hitchin (5 mi), Letchworth Garden City (5 mi), Welwyn Garden City (7 mi)
- How it arrives
- Wrapped packs
- Postcode districts
- SG1, SG4, SG2
- Delivering to
- Stevenage, Hertfordshire
- Delivery
- Standard mainland delivery
- Daylight
- About 7h 45m on the shortest day
Our PIR insulation boards range for Stevenage jobs
- Flat roof boardsBoards for warm flat roof build-ups.
- 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.
How much will you need?
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
Planning the drop in Stevenage
Boards are light but bulky; they travel in wrapped packs and should be stored flat and dry. Stevenage is inside our standard mainland delivery area.
- Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
- On busy streets in Stevenage, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.
- Clear a level area for pallets, ideally on boards, so materials stay out of standing water.
Getting the right 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.
Ordering PIR insulation boards for Stevenage: FAQs
How soon can PIR insulation boards be delivered in Stevenage?
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.
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 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.
Do you deliver PIR insulation boards to Stevenage?
Yes. We deliver across Stevenage, including SG1, SG4, SG2. Stevenage is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.
PIR Insulation Boards in neighbouring towns
- PIR Insulation Boards in Hitchin
- PIR Insulation Boards in Letchworth Garden City
- PIR Insulation Boards in Welwyn Garden City
- PIR Insulation Boards in Harpenden
- PIR Insulation Boards in Hertford
- PIR Insulation Boards in Luton
Complete your Stevenage 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.
