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Material category

Sustainable insulation materials

Compare sustainable insulation materials from UK suppliers, including wood fibre, cork, hemp, cellulose, sheep wool, and mineral wool products.

View live listings48 live listings16 suppliers

Category overview

Compare products on evidence and project fit.

Insulation influences operational energy, summer comfort, moisture behaviour, buildability, and the embodied impact of an envelope. The right product depends on the whole wall, roof, or floor build-up rather than thermal conductivity alone.

Use the live listings below to compare declared performance, availability, certifications, sourcing information, and carbon evidence where suppliers have provided it. Confirm fire, acoustic, moisture, and installation requirements with the supplier and project designer before specifying.

What this page includes
Listings are read directly from Matera's current public catalogue.
  • Approved, active supplier profiles
  • Published and unarchived product listings
  • Verified certifications and carbon data where available
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Current catalogue

Live insulation listings

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Specification checklist

What to compare before specifying

Thermal and moisture performance
01

Compare conductivity, density, vapour resistance, and suitability for the intended construction build-up—not simply nominal thickness.

Evidence and composition
02

Look for product-specific EPDs, clear binder and additive information, certification, and a declared basis that permits like-for-like comparison.

Installation and availability
03

Check format, handling, lead time, delivery area, waste factors, and whether an experienced installer is needed for the chosen system.

Questions to ask

Frequently asked questions

Which insulation material is the most sustainable?

There is no universal winner. Impact depends on thermal performance, quantity, service life, manufacturing, transport, installation waste, and what happens at end of life. Compare products against the same functional requirement and declared unit.

Can natural insulation replace PIR?

Wood fibre, cellulose, cork, hemp, and wool can replace PIR in many assemblies, but they often need a different thickness and moisture strategy. Confirm fire, condensation, structural, and space constraints for the particular build-up.

What information should an insulation supplier provide?

Ask for thermal conductivity, density, fire classification, vapour or moisture data, relevant certificates, installation guidance, and an EPD or other transparent carbon source where available.

Go deeper

Related guides

Browse all guides
Wood Fibre Insulation
A low-impact alternative to PIR and mineral wool
Read guide
Alternatives to PIR Insulation
Lower-impact insulation options, and when to specify each one
Read guide
How to Compare Insulation Materials
A practical framework for choosing insulation by performance, carbon, and cost
Read guide

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