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New surplus surplus insulation & plasterboard — Rockwool RWA45 50mm slabs (30 packs · ≈90m²) — GlasgowNew surplus Job lot

Rockwool RWA45 50mm slabs (30 packs · ≈90m²) — Glasgow

Glasgow·30 packs · ≈90m²·Listed 22d ago
£480/lot

Sold by Glasgow Greenfield Contractors (Contractor) · Ref L0435

Contact sellerHow buying works

Condition grade 10/10 (New surplus). Assessed by the seller at listing; figures below relate to this specific lot of 30 packs · ≈90m².

About this lot

Acoustic mineral wool slabs. Packaging slightly creased, product immaculate. Ideal for studwall sound insulation. Located in Glasgow — collection or arranged regional delivery available. Fresh to market — posted 22 days ago by Glasgow contractor Glasgow Greenfield Contractors.

Surplus stock like this exists because projects over-order to avoid downtime — the saving gets passed to you instead of the skip. As new surplus it is indistinguishable from merchant stock except for the price.

Measurements & specifications

Density
45 kg/m³
Thickness
50mm
Location
Glasgow
Ref
SB-43-05
Quantity / lot size
30 packs · ≈90m²
Thermal conductivity
λ 0.031 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 97% of boards

Condition report & known defects

10/10
  • Unused stock — original banding/packaging intact where stated.
  • Original wrap opened on one pack for count verification, re-taped.
  • Corner crush on ~10% of boards from transit — cut-around loss only.
  • Minor pallet-edge scuffs to outer packaging only.

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 Glasgow premises — car/van accessible, assistance with loading provided.
  • Seller can quote hiab or flatbed delivery within ~60 miles of Glasgow; 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 9 packs.

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