A1–A3 · Product
Raw materials, transport to the factory and manufacturing.
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Sustainability
Lower Embodied Carbon. Same Proven Performance.
Kingspan Lower Embodied Carbon (LEC) polycarbonate glazing and rooflight systems cut product-stage emissions through recycled content, with independently verified data to prove it.
Why it matters
Embodied Carbon is Locked in Before a Building Opens
As buildings become more energy-efficient in use, the carbon from making, transporting and disposing of materials accounts for a growing share of a building’s lifetime emissions, and none of it can be reduced once it’s built.
Our Lower Embodied Carbon (LEC) range tackles this at source.
LEC products deliver reduced embodied carbon compared with equivalent standard Kingspan products, helping customers reduce project carbon impact and support sustainability objectives.
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How a Product’s Life Cycle is Measured
A4–A5 · Construction
Transport to site and installation.
B1–B7 · Use
Maintenance, repair, replacement and operational use.
C1–C4 · End of life
Demolition, transport, waste processing and disposal.
How LEC works
How LEC Cuts Carbon Without Cutting Performance
More recycled content.
We replace virgin material with post-consumer recycled resin, cutting the carbon from raw material extraction.
Supply-chain collaboration.
We work with suppliers and partners to lower the footprint of the materials in every sheet and system.
Independently verified.
Every reduction is backed by third-party verified LCA data or an Environmental Product Declaration (EPD), so you can use the figures in your project carbon assessment.
Performance maintained.
LEC products deliver the expected performance of their standard Kingspan equivalents.
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The LEC range
Lower Embodied Carbon Glazing and Rooflights
The Light, Air + Water LEC range covers polycarbonate glazing sheet and complete continuous rooflight systems, each with an independently verified carbon declaration. Reductions vary by product and are stated against each product’s standard equivalent.
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Polycarbonate Multiwall Sheet
KILON LEC Multiwall
Up to 56.4% lower embodied carbon (A1–A3) vs the standard product.
- 50% post-consumer recycled resin
- 2.98 kg CO₂e saved per kg across manufacturing
- 35.6–48.7% lower across the full life cycle (A–C), depending on end-of-life scenario
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Polycarbonate Solid Sheet
KILON LEC Solid Sheet
37.4% lower embodied carbon (A1–A3) vs standard KILON Solid Sheet.
- 50% post-consumer recycled resin
- 1.46 kg CO₂e saved per kg across manufacturing
- 30% lower across the full life cycle (A–C)
- EPD to ISO 14025 and EN 15804+A2
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Ecofil LEC & Ecofil Premium LEC
Up to 33% lower embodied carbon (A1–A3) vs standard equivalents.
- 50% recycled polycarbonate and aluminium
- Ecofil LEC: 33% lower (A1–A3), saving 21.5 kg CO₂e per functional unit
- Ecofil Premium LEC: 32% lower (A1–A3), saving 15.18 kg CO₂e per unit
- Verified FDES to NF EN ISO 14025 and NF EN 15804+A2/CN; supports RE 2020
Learn More About Sustainability
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Specifying for a project?
Get a Carbon Comparison for your Specification
Tell us what you’re specifying and our team will send the relevant EPDs and an LEC vs standard comparison, with support for LEED, BREEAM and RE 2020 submissions.