Friendly materials

Alert list

A compilation of 18 chemical substances to avoid in construction materials.

The substances identified at the Friendly Materials® Alert List are the result of a long period of study of 6 internationally recognized baseline red lists: REACH (annex XIV and XVII), SIN List, EPA Action Plan, Living Building Challenge and Transparency by Perkins+Will.


The Friendly Materials® Alert List gathers all the chemical substances identified in these 6 red lists and that are commonly found in indoor building materials.

We stand for a precautionary principle, and we consider urgent to avoid the substances from the Friendly Materials® Alert List whenever possible.