Seafoam Materials makes carbon-storing insulation from seaweed and upcycled waste
We believe meaningful change in construction happens when materials fit the industry as it is — while quietly helping it become something better.
Seafoam Materials replaces energy-intensive conventional insulation with carbon-storing alternatives, locking in carbon for the lifetime of the building.

Direct replacement for leading insulation types

Stores more carbon than is emitted during its manufacture
One ton of waste is diverted from landfill for every home that uses
Made without petrochemical or toxic additives
All-natural, fully compostable composition

Construction materials account for 13% of global carbon emissions1. In Canadian residential construction, insulation is the second highest emitting material, after concrete2.Seafoam Materials replaces energy-intensive conventional options with carbon-storing alternatives, locking in carbon for the lifetime of the building.
1. UNEP Report on Building Materials and the Climate 2023
2. Builders for Climate Action, 2021-2022
Seaweed captures carbon faster than any plant, and restores marine ecosystems as it grows.
It's a highly scalable regenerative solution that doesn’t require land or freshwater to grow1.Seaweed's unique binding properties make it an ideal option for construction materials - it’s naturally fire and rot resistant, and non toxic.
1. Earth.org. (2023). Utilising Kelp Forests for Carbon Sequestration.



Dr. Dorothy
Johns

Joanna
Buczkowska-McCumber

Alex
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