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Hempitecture

HempWool: the first EPD for hemp insulation from the US, with a negative manufacturing footprint.

Hempitecture

Description

American manufacturer of biobased insulation based in Idaho. Its plant in Jerome, powered by wind and solar energy, produces HempWool, a thermal batt with 92% industrial hemp fibre. In 2026 it published the first EPD for a hemp insulation manufactured in the United States, with a net GWP in modules A1-A3 of -0.80 kg CO2eq per declared unit thanks to the biogenic carbon stored by the fibre. It also manufactures acoustic panels and insulation for vehicles, and leads the rebuilding of the North American industrial hemp supply chain.

/* Veredicto editorial. «Qué mejoraríamos» se retiró de la web el 10-sep-2026 (ver lib/ficha-editorial): la ficha enseña por qué elegimos un material, no lo que le falta. El dato sigue en Airtable y sigue siendo criterio de selección. */
Why we chose it

Because it published the first EPD for hemp insulation from the United States, with a verified negative net footprint in manufacturing.

Chosen by Descarboniza. No company pays for what we say about it.

Go to their website

BIM AvailableNot available

No verified EPD published

There is no third-party verified Environmental Product Declaration for this material, so no carbon figure is published: neither self-declared nor estimated.

Carbon negative
No
EPD / DAP

Sí

Data source

EPD HempWool (2026): GWP neto A1-A3 de -0,80 kg CO2eq por unidad declarada

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