Listeners write in about outdoor showers, a Philadelphia carpentry teacher, and the science of hail damage. We ask building scientist Monica Rokicki-Guajardo questions about building performance, HVAC systems, and indoor air quality.

Listeners write in about shade structures, metaphors for air-sealing, and the HVAC industry and ask questions about porch railings, porch flooring, and Japanese footings.

Listeners write in about off-site construction, displaying old walls, and building outbuildings and ask questions about leaky doors, missing flashing, and insulating kneewalls.

Listeners write in about high water bills, soggy straw bales, and house fires and ask questions about tightening wood-fiber walls, places without inspections, and heat pump water heaters.