How not to insulate a cold floor
Does anyone know how to *not* insulate a semi-cold floor safely? Is this allowed by code?
here is my scenario: detached garage with half garage, half carport. Above those is a conditioned office that I plan on installing a diy minisplit. The office I will keep at 60-70F. The garage however I want to just keep above 50F and plan on installing a cheap resistance heater (likely radiant). It seems then that by insulating the floor above the garage I’m just losing a giant, free, and far more efficient, radiant ceiling heater. Is the 20F temperature difference enough to reach dew point in the winter?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part