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This guide is for people working on real houses. Not perfect ones. Not new ones. Not houses on paper.
Every action has a reaction, and retrofit is where that gets people into trouble. You add insulation, and another surface gets colder. You seal air leaks, and moisture loses its escape route. None of those are bad decisions, but none of them are neutral.
Written by Brian Iverson, with 52 years of field experience, this guide explains how heat, air, and moisture actually move through an existing house, why mold shows up in normal houses, and how to put a wall, rim joist, ceiling, or roof back together so it can dry, tolerate mistakes, and last.
The second edition has nine chapters and two real case studies with field photos and thermal images, including a 1908 Craftsman with an $800-a-month utility bill. It's for builders, remodelers, homeowners, inspectors, mold remediation professionals, architects, and anyone who has to decide what to do before a wall gets closed.
This is educational. It's about cause and effect, not a one-size-fits-all recipe.
Instant PDF download. Searchable, with clickable chapter navigation.
This guide is for people working on real houses. Not perfect ones. Not new ones. Not houses on paper.
Every action has a reaction, and retrofit is where that gets people into trouble. You add insulation, and another surface gets colder. You seal air leaks, and moisture loses its escape route. None of those are bad decisions, but none of them are neutral.
Written by Brian Iverson, with 52 years of field experience, this guide explains how heat, air, and moisture actually move through an existing house, why mold shows up in normal houses, and how to put a wall, rim joist, ceiling, or roof back together so it can dry, tolerate mistakes, and last.
The second edition has nine chapters and two real case studies with field photos and thermal images, including a 1908 Craftsman with an $800-a-month utility bill. It's for builders, remodelers, homeowners, inspectors, mold remediation professionals, architects, and anyone who has to decide what to do before a wall gets closed.
This is educational. It's about cause and effect, not a one-size-fits-all recipe.
Instant PDF download. Searchable, with clickable chapter navigation.