Insulation Episodes

In Walpole, a two-unit ranch gets a code-rated firewall, a shared hydro-air HVAC system, whole-house water filtration, and a cold-joint injection that makes old-meets-new basement walls honest. Then Kevin and Tom tour a finished attic ADU in Dorchester—proof that 700 square feet can feel like a yacht.

HVAC gets targeted upgrades instead of a gut job, Charlie chooses closed-cell spray foam for the third floor, and Tom proves that proper window flashing is a lost art worth finding.

Building science experts seal a house with pressurized mist (yes, really), FEMA tackles the hazardous trees still looming overhead, and Mark gets a history lesson at one of Asheville's most iconic hotels.