Kingspan Kooltherm K7 80mm — 40 boards
Surplus to a Passivhaus retrofit. Phenolic insulation boards — better λ than PIR. Sealed packs, dry stored under tarp.
Sold by Manchester Greenfield Contractors (Contractor) · Ref L0467
Condition grade 10/10 (New surplus). Assessed by the seller at listing; figures below relate to this specific lot of 60 boards.
Brand new, banded. Suits floors, walls and warm roof construction. Located in Manchester — collection or arranged regional delivery available. Listed 10 days ago by Manchester Greenfield Contractors, a contractor based in Manchester.
Every lot here was once destined for waste transfer — listing it instead keeps first-quality material in circulation at well below merchant list. As new surplus it is indistinguishable from merchant stock except for the price.
The 46 kg CO₂e figure on this listing is calculated against producing virgin PIR/mineral wool boards (PIR ~3.5 kg CO₂e per m² at 100mm).
Put another way — about 271 km of driving emissions, or 2 tree-years of carbon uptake.
If your project tracks embodied carbon (BREEAM, Part Z readiness, or client ESG reporting), keep this listing reference as evidence of avoided emissions.
The headline saving on this listing (~46 kg CO₂e) is benchmarked against producing virgin PIR/mineral wool boards (PIR ~3.5 kg CO₂e per m² at 100mm). That's the embodied-carbon figure — the emissions locked into new material at the point of manufacture, before it ever reaches your site.
In UK building terms, embodied carbon typically accounts for 40–60% of a project's whole-life emissions once operational energy is decarbonised. Reusing insulation like this lot from Manchester bypasses the manufacturing stage entirely, which is why substitution consistently outperforms offsetting on lifecycle assessments.
For projects tracking against Part Z (the proposed embodied-carbon amendment to the Building Regulations), BREEAM Mat 01 credits, or the RIBA 2030 Climate Challenge, reused material counts at zero embodied carbon in the A1–A3 modules. Keep the seller invoice, this listing URL and the CO₂e figure together in your carbon file.
Beyond carbon: buying this lot from Manchester Greenfield Contractors keeps first-quality insulation out of the UK construction waste stream (currently ~62 million tonnes/year, per DEFRA). It supports the circular-economy supply chain — sellers who divert stock only continue diverting when there's a viable resale route.
No — what matters is the declared lambda value and installed thickness. Keep a facing photo showing the print line for your Building Regs file.
Flat, dry and off the ground. PIR facings degrade with prolonged UV exposure, so keep the wrap on until the day of fixing.
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.
Manchester Greenfield Contractors issues a VAT invoice on collection or dispatch — bank transfer is standard, card on request. For anything over £500 we recommend a written spec confirmation before paying, so the exact insulation description and quantity are on record.
A short reservation (typically 48–72 hours) is usually possible with a 10% holding deposit. Surplus stock moves quickly, especially new surplus lots at this price point — confirm the hold in writing so the seller doesn't re-list.
Yes — the ~46 kg CO₂e saving is calculable against the benchmark in the sustainability notes above; keep this listing URL as evidence for your embodied-carbon log.
Surplus to a Passivhaus retrofit. Phenolic insulation boards — better λ than PIR. Sealed packs, dry stored under tarp.
Mixed PIR pieces, all usable. Perfect for stud walls and ceiling bays. Thermally identical to full boards. Located in Manchester — collection or arranged regional delivery available.
Surplus to a Passivhaus retrofit. Better λ than PIR. Sealed packs, dry stored. Located in Manchester — collection or arranged regional delivery available.