Listeners write in about high-performance builds, wall insulation, and EV vans and ask questions about bad building, insulating a lean-to, and minisplit air distribution.

Listeners write in about handyman businesses, NASA’s stuck screws, and leak detectors and ask questions about old houses, sizing beams, and restoring windows.

A talk with Heather Clark Director of Building Emissions for the White House Climate Policy Office and feedback on missing water, Bay Area renovations, and pex manifolds.

Listeners write in about choosing pipe material, finding a good contractor, charred timbers, and PV utility costs, and ask questions about venting metal roofing, air-sealing, and foundation drainage.