24 sustainable materials that can be used for ceiling. Narrow them down by feedstock and availability.
Sound absorption and interior material using eelgrass naturally washed up on the shore.
A sound-absorbing material made from eelgrass. Binder and backing differ by product.
Dry-construction clayboards (LEMIX D22/D16) from CLAYTEC, Viersen, Germany. Clay, earth, wood fibre and starch with a jute-fabric backing. D16 at 16 mm/23 kg/m², D22 at 22 mm/32 kg/m², bulk density class 1.6 (~1,550 kg/m³). Fire A2-s1,d0, λ 0.353 W/mK. natureplus ecolabel Type 1 (per EN 14024), DIN 18945-48, QNG-compliant. For interior walls, ceilings and roof faces, and as a substrate for clay plasters.
After clay plaster (Clayworks) and compressed blocks (BC), this fills the dry-lining stage of earth building…
A British interior plaster of unfired clay, minerals and pigments — carbon per kg published in an EPD, reusable and compostable.
A wall finish with no firing and no cement — its carbon is published in an EPD, and reuse and composting at e…
An insulating plaster of hydraulic lime, diatomaceous earth, pumice and perlite blended with cork and natural fibres. λ 0.045 W/mK at 360±20 kg/m³, vapour-open (μ=4, 71.64% porosity) for breathable insulation. Non-combustible A1 (EN 13501-1), CE and UKCA marked, holds an EPD, with LEED v4/4.1, WELL v2 and BREEAM contributions stated. Especially suited to retrofitting older buildings inside and out.
The plaster axis had only two records, neither aimed at insulation. This is plaster and insulation in one — r…
An interior/acoustic board with a straw core pressed between kraft liners.
A board of compressed straw core faced with kraft paper. The manufacturer states that no adhesive is used in…
Dutch board made from agricultural residues such as straw and reeds, bonded by the fibres' own lignin with only 3% additive. Formaldehyde-free E0, density 200–800 kg/m³. DUBO-keur certified, natureplus pending.
A board aimed at the particleboard/MDF slot without synthetic resin: the bond comes from the fibres' own lign…
Lime and graphene paints from Graphenstone, Spain. Lime paints (Ecosphere, Biosphere, AmbientPro+ etc.) hold Cradle to Cradle Gold, colours Silver, GrafClean Bronze; Eurofins Indoor Air Comfort Gold v9.0 (GrafClean, Ecosphere) and Global GreenTag Health Platinum. VOC: GrafClean <0.1 g/l (ISO 11890-2), lime paints <1 g/l. The maker states lime paints absorb CO2 while curing (no figure published).
One of the thickest certification stacks in the coatings axis — C2C Gold (first for a liquid paint, per the m…
Thermal insulation / sound absorption board made by bonding cork granules with heat and pressure.
An insulation material the manufacturer describes as expanded cork with no additives. The same material can b…
Interior fiberboard made by bonding gypsum and recycled waste-paper fibers under high pressure.
A board that, according to the manufacturer, mixes about 80% gypsum with about 20% recycled paper fiber.
A closed-cell glass insulation containing on average 50% post-consumer recycled glass.
A cellular glass insulation that, according to official product documents, contains on average 50% recycled g…
Semi-rigid thermal and sound-absorbing insulation made from grass fiber.
Insulation made from grass fiber. The binder and additive mix differs by product.
A mineral fiber ceiling panel range using recycled content and a plant-based binder.
A glass-fiber-based sound-absorbing ceiling material made with a plant-based binder.
Recycled cellulose interior board
An interior board that can be cut, drilled, glued and laminated like a wood-based board, while showing as-is…
Flexible insulation batts from UK-grown hemp fibre. λ 0.039 W/mK at 45 kg/m³, specific heat 2371 J/kgK, minimum 40 dB sound reduction at 50 mm. BBA certified, verified EPD (2025-04-28), ISO 9001. Net carbon storage of −0.79 kgCO2eq/kg (A1-3 LCA), stated as "the lowest embodied carbon on the market". Made in Jedburgh, Scotland; friction-fit in timber frames or against masonry.
Adds hemp to the bio-insulation line (wood fibre, wool, cellulose, grass), with a verified EPD pinning net ca…
Korean glass wool insulation with a corn-derived binder — over 70% recycled material, no formaldehyde emission, with Korea Eco-Label and top-grade HB mark.
Among insulation readily available in Korea, one that states recycled content and binder chemistry in numbers…
A recyclable sound-absorbing ceiling tile system using basalt-based stone wool as the core.
A basalt-based stone wool ceiling material. The manufacturer operates a take-back and recycling scheme.
A building board pressed from composite packaging waste such as beverage cartons and soft plastics.
A board using up to 100% packaging waste. The manufacturer states that no adhesives, chemicals, or water are…
German flexible insulation batt made from PEFC-certified softwood fibre. λD 0.036 W/(m·K), density approx. 50 kg/m³, about 82 kg CO2eq/m³ of biogenic carbon stored (EN 15804+A2).
Publishes one of the lowest thermal conductivities among bio-based insulants as a datasheet figure, together…
Blow-in cellulose insulation made from newspaper by Peter Seppele, Austria. Newspaper fibres with <10% additives, borate-free. λD 0.037–0.038 W/mK at 28–60 kg/m³ installed density, ETA-05/0186. natureplus (0107-1301-121-1), EPD (EPD-PSG-20150321-IBA1-DE), CE marked. For roofs, walls, floors and timber-frame cavities.
A classic recycled-paper insulation filling the loose-fill gap. Borate-free yet holding natureplus, EPD and E…
A Korean sound-absorbing panel/felt material made by turning post-consumer PET into fiber.
A sound-absorbing material that the manufacturer states is 100% recycled polyester fiber recovered after use.
A sound-absorbing panel combining certified wood wool and cement.
A sound-absorbing ceiling material of wood wool bonded with cement.
Building insulation batt made from recycled waste jeans / cotton fiber.
As a case of textile waste turned into a hidden building performance material, it can extend the scope of a f…
Glass wool insulation from Byucksan, Korea. The official catalogue states over 85% waste-material (recycled glass) usage. Enerfree grade at λ 0.032 W/mK (Korean energy-code grade 가), standard 0.034–0.037, densities 24–120 kg/m³, hot shrinkage 300–400°C. KS, JIS, eco building material, Korea Eco-Label and non-combustibility certificates reproduced in the catalogue. Lines include Enerfree, Waterfree (water-repellent external), Freemat, G/C board and panel core.
The second Korean glass wool record after KCC Nature — this one puts the waste-material rate (85%+) in its ca…
A waste-textile-based board made in Korea and directly available in Korea. It comes in a standard 1,000 × 2,4…