Insulation upgrade
State what this option assumes, what should change first and what evidence would weaken it.
Compare thermal resistance, bypasses, wind washing, moisture and ventilation before covering access to the actual transport pathway.
State what this option assumes, what should change first and what evidence would weaken it.
Keep this route available until repeated evidence separates it from the first option.
Compare thermal resistance, bypasses, wind washing, moisture and ventilation before covering access to the actual transport pathway. This guide compares both routes, defines safe evidence, stop boundaries and the next professional handoff.
Open decision guide →