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New surplus surplus insulation & plasterboard — Surplus Kingspan K7 80mm phenolic (40 boards · 2.4×1.2m) — ManchesterNew surplus

Surplus Kingspan K7 80mm phenolic (40 boards · 2.4×1.2m) — Manchester

Manchester·40 boards · 2.4×1.2m·Listed 14d ago
£1,355/lot
~77kg CO₂e saved

Sold by Manchester Greenfield Contractors (Contractor) · Ref L0407

Contact sellerHow buying works

Condition grade 9/10 (New surplus). Assessed by the seller at listing; figures below relate to this specific lot of 40 boards · 2.4×1.2m.

About this lot

Surplus to a Passivhaus retrofit. Better λ than PIR. Sealed packs, dry stored. Located in Manchester — collection or arranged regional delivery available. Offered by Manchester Greenfield Contractors (contractor) from their Manchester yard, listed 14 days ago.

Site over-orders, cancelled jobs and careful strip-outs are where the best material bargains in the UK come from — this lot is one of them. This is unused, current-spec material — the only thing second-hand about it is the price tag logic.

Measurements & specifications

Brand
Kingspan Kooltherm K7
λ-value
0.018 W/mK
Location
Manchester
Ref
SB-41-01
Quantity / lot size
40 boards · 2.4×1.2m
Thermal conductivity
λ 0.033 W/mK (per facing print)
Board squareness
Checked diagonal-to-diagonal on 5 sample boards
Edge profile
Square edge
Storage
Flat-stacked, dry, off the ground since arrival
Facing condition
Foil/paper facings intact on 95% of boards

Condition report & known defects

9/10
  • Minor pallet-edge scuffs to outer packaging only.
  • Stored under cover since delivery; no weather exposure.
  • Unused stock — original banding/packaging intact where stated.

Carbon & sustainability notes

Reusing this material saves roughly 77 kg CO₂e versus producing virgin PIR/mineral wool boards (PIR ~3.5 kg CO₂e per m² at 100mm).

That's equivalent to about 454 km of average petrol-car driving, or what 4 mature trees absorb in a year.

Reuse is the single fastest way to cut a build's embodied carbon — substitution beats offsetting every time.

Collection & delivery

  • Buyer collection in Manchester; forklift loading available weekdays 7:30am–4pm.
  • Regional pallet delivery can be arranged from £80 depending on postcode and lead time.
  • Inspection before purchase is encouraged — bring a tape and check sample units against the measurements above.

Typical applications

  • Floor insulation under screed or chipboard
  • Dot-and-dab and stud-wall drylining
  • Garage conversions and garden offices
  • Acoustic upgrades between floors

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 2 packs.

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