SSurplusBuilder.
B-grade surplus insulation & plasterboard — Surplus PIR 50mm full boards (60 boards) — CardiffB-grade

Surplus PIR 50mm full boards (60 boards) — Cardiff

Cardiff·60 boards·Listed 20d ago
£765/lot

Sold by Cardiff Urban Reclamation (Demolition) · Ref L0477

Contact sellerHow buying works

Condition grade 7/10 (B-grade). Assessed by the seller at listing; figures below relate to this specific lot of 60 boards.

About this lot

Brand new, banded. Suits floors, walls and warm roof construction. Located in Cardiff — collection or arranged regional delivery available. Listed 20 days ago by Cardiff Urban Reclamation, a demolition based in Cardiff.

Every lot here was once destined for waste transfer — listing it instead keeps first-quality material in circulation at well below merchant list. B-grade pricing reflects cosmetics, not performance — the defect notes below set out exactly what was downgraded and why.

Measurements & specifications

Spec
PIR 50mm
Size
2400 × 1200mm
Location
Cardiff
Ref
SB-46-11
Quantity / lot size
60 boards
Thermal conductivity
λ 0.037 W/mK (per facing print)
Board squareness
Checked diagonal-to-diagonal on 6 sample boards
Edge profile
Tongue & groove
Storage
Flat-stacked, dry, off the ground since arrival
Facing condition
Foil/paper facings intact on 98% of boards

Condition report & known defects

7/10
  • Each unit inspected and photographed on request before dispatch.
  • Facing scuffs and 2 dented edges per pack; thermal performance unaffected.

Carbon & sustainability notes

No reuse CO₂ credit is claimed on this lot: it is unused stock, so the embodied carbon was committed at manufacture. Buying it still prevents waste — material sent to landfill or energy recovery delivers none of its embodied value.

If your project tracks embodied carbon (BREEAM, Part Z readiness, or client ESG reporting), keep this listing reference as evidence of avoided emissions.

Collection & delivery

  • Collection from the seller's Cardiff premises — car/van accessible, assistance with loading provided.
  • Seller can quote hiab or flatbed delivery within ~60 miles of Cardiff; from £65.
  • Ask the seller for close-up photos or a video walkround if you can't visit — they expect the request.

Typical applications

  • Acoustic upgrades between floors
  • Warm roof build-ups and rafter-level insulation
  • Floor insulation under screed or chipboard
  • Dot-and-dab and stud-wall drylining

Questions about this lot

Do part-sheets affect building control sign-off?+

No — what matters is the declared lambda value and installed thickness. Keep a facing photo showing the print line for your Building Regs file.

How should boards be stored on site?+

Flat, dry and off the ground. PIR facings degrade with prolonged UV exposure, so keep the wrap on until the day of fixing.

Is mixed-brand insulation OK in one roof?+

Yes, provided each zone's U-value calc uses the correct lambda for the board actually installed there. This lot is single-brand across all 7 packs.

More surplus insulation & plasterboard

View all →