Free all-day presentation by Martin Holladay

The National Center for Appropriate Technology has invited me to give a workshop in Butte, Montana on July 26, 2022. The announced topic is “building affordable, energy-efficient homes in Montana’s… The National Center for Appropriate Technology has invited me to give a workshop in Butte, Montana on July 26, 2022. The announced topic is “building affordable, energy-efficient homes in Montana’s…Read MoreGreenBuildingAdvisor