Last week we ran our accredited PHI course to become a Certified Passive House Tradesperson. Builders from all over the country joined us at our office in Arvada (Denver), Colorado, for five days of intense learning and growing. We've now…

Last week we ran our accredited PHI course to become a Certified Passive House Tradesperson. Builders from all over the country joined us at our office in Arvada (Denver), Colorado, for five days of intense learning and growing. We've now…