Insulation

Natural, mineral and synthetic insulation materials. From rock wool to aerogel, from cork to hemp biocomposites: materials for high-performance, healthy building envelopes.

14 materials available

All materials

Insulation

Aerogel

The world's lightest solid: 95% air in a nanometric silica lattice. Lambda 0.015 W/mK — half that of polyurethane. The definitive solution for thermal bridges and thickness constraints in historic building restoration.

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Insulation

Calcium Silicate

The anti-mould insulator for historic centres. pH 10.5 alkaline: mould cannot proliferate. mu 3-6: breathes like air. The only solution for internal insulation without interstitial condensation (Green Homes Directive). Non-combustible Class A1.

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Insulation

Cellular Glass (Foamglas)

The eternal insulator. Recycled glass + expanded carbon = hermetic glass cells (mu = infinite). Zero water, zero fire (A1), zero creep (1600 kPa). Installed in hot bitumen. The only structural insulator below foundation slabs and driveable roofs.

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Insulation

Cellulose Flakes (Blown-In)

Circular bio-insulation: recycled newspapers blown under pressure into cavities. Lambda 0.038 W/mK + very high thermal mass. Summer phase shift > 12 hours. Boron salts: self-extinguishing, anti-mould, anti-rodent. Embodied carbon nearly zero.

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Insulation

EPS — Expanded Polystyrene

The democratic external insulation. 98% air in sintered closed cells. Lambda 0.036 W/mK, unbeatable cost. Core of ETICS systems. Graphite-grey version reduces thickness by 15%. Warning: dissolves in solvents, crumbles under UV without mesh-reinforced render.

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Insulation

Expanded Cork (ICB)

Natural insulation from cork oak bark. The steam expansion process bonds granules using only suberin (the cork's own resin), with no chemical adhesives. Carbon-negative, rot-proof, excellent summer thermal lag.

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Insulation

Glass Wool

Light, flexible mineral insulation from recycled glass. Ideal for drywall systems, it acts as an acoustic spring (Massa-Molla-Massa), achieving sound insulation values higher than solid brick walls.

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Insulation

Graphite EPS

Expanded polystyrene enriched with graphite. Graphite particles act as micro-mirrors against infrared radiation, achieving lambda 0.030 W/mK vs 0.036 of white EPS. The thin insulation par excellence for ETICS facades.

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Insulation

Hemp Biocomposite (Hempcrete)

Hemp and lime biocomposite (Hempcrete). Carbon-negative building material (-280 kgCO2/m3), non-structural, breathable and humidity-buffering. The most regenerative insulating infill material available.

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Insulation

Rock Wool

Mineral insulation from volcanic rocks. Incombustible (Class A1), breathable (mu=1), excellent acoustics. The only thermal insulation material that also protects against fire propagation.

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Insulation

Sheep Wool

Natural insulation from sheep shearing. Keratin actively captures formaldehyde and VOCs from indoor air. Humidity management up to 33% weight, sorption heat effect, service life > 50 years without performance loss.

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Insulation

Straw Bale Insulation

Climate-positive construction. Straw = -1.5 kg CO2 per kg. Lambda 0.05-0.08 W/mK with summer phase shift > 14 hours. Zero vapour barrier. Clay plaster inside, NHL lime outside. Compressive strength up to 120 kg/m3.

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Insulation

Wood Fibre

Bio-insulation from sawmill waste. Unique double ability: excellent winter thermal resistance and unmatched summer thermal lag (>14h for 20cm), thanks to its very high specific heat of 2100 J/kgK.

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Insulation

XPS (Extruded Polystyrene)

Thermally insulating extruded polystyrene with 100% closed-cell structure. Totally waterproof (water absorption < 0.7%), compressive resistance up to 700 kPa, ideal for under-slabs, inverted roofs and basement perimeters.

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