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Seaweed fibres and lime, formed at room temperature into a healthy, acoustic panel that returns to the soil.

Green seaweed moving underwater
Render of an ALGA BioPanel
ALGA BioPanel prototype

ALGA BioPanel is a wall and ceiling panel made from seaweed fibres bound with lime. It contains no synthetic resin and no formaldehyde, and at the end of its life it can be composted.

Close-up of sea lettuce on a pebble beach

Why algae?

Seaweed is one of the fastest-growing materials on the planet, and it asks for almost nothing in return.

  • Grows fast

    Marine macroalgae regrow quickly, season after season.

  • No fresh water, no farmland

    It grows in the sea, so it competes with neither food nor forests.

  • Local by nature

    Coasts everywhere have seaweed. No long supply chains like bamboo or mycelium.

  • A carbon story

    The lime binder takes CO₂ back from the air as the panel cures.

One material, six jobs

What usually takes several layers of synthetic products happens inside a single panel.

Acoustic

A micro-porous fibre network absorbs sound without extra mineral wool or foam.

Fire-retardant binder

The mineral lime matrix slows flame spread with no toxic retardants.

Resists mould

An alkaline core limits mould, fungi and bacteria without biocides.

Clean indoor air

No synthetic resin, no formaldehyde, no harmful VOCs.

Stores CO₂

Lime carbonates as it cures, locking atmospheric carbon into the panel.

Compostable

At end of life it breaks down into soil nutrients and calcium.

Why the building industry needs a change

of CO₂ emitted for every tonne of cement produced.
900- kg
of indoor panels on the market rely on synthetic binders and resins.
>%
the cost per m² of bamboo panels compared with standard boards.
3-×

Figures as cited in industry literature.

From the studio

We are testing the panel in prototypes before its first installations.

See all works
  • Prototype panel

    Flat board, olive tone

    Prototype panel

  • Cross-section study

    Material research

    Cross-section study

  • Panel geometry

    Design study

    Panel geometry

Underwater kelp forest

Let’s build with the sea

Architects, designers and builders: ask for a sample and see the material in your hands.