INTENT
The intent of this Imperative is to set a baseline for transparency, sustainable extraction, support of local industry, and waste diversion for all projects.
REQUIREMENTS
All projects must positively impact the building products market by meeting the following materials selection criteria:
- The project must contain one Declare label product per 200 square meters (sm) of gross building area, or project area, whichever is smaller, up to twenty distinct products from five manufacturers. All other product manufacturers not currently in Declare must, at a minimum, receive a letter requesting they disclose their ingredients and identify any Red List content.
- All projects (except residential) must incorporate one product certified under the Living Product Challenge.
- 50% of wood products must be FSC, salvaged, or harvested on site either for the purpose of clearing the area for construction or to restore or maintain the continued ecological function of the site. The remainder must be from low risk sources.
- 20% or more of the materials construction budget must come from within 500 kilometers of the construction site.
- The project must divert 80% of the construction waste material from the landfill and provide dedicated infrastructure for the collection of recyclables and compostable food scraps during occupancy.
When a project is targeting all Materials Imperatives, it is not necessary to document this Imperative, since all requirements are superseded by Imperatives 13-16.
CHANGES FROM LBC 3.1 TO 4.0
This is a new Imperative in LBC 4.0. This Imperative includes some requirements from each of the other four Materials Petal Imperatives, and establishes a minimum level of performance for materials transparency and sustainability that all projects pursuing the Living Building Challenge must meet. This Imperative is unique in that its requirements are superseded by the other four Imperatives of the Materials Petal when a project is pursuing the Materials Petal or Living certification. As such, it is not necessary to document this Imperative when a project is targeting the Materials Petal.
