Can I paint an interior garage wall that has no insulation? And will I improve the comfort of the garage? I live in South Carolina and garage gets as hot as the outside temperature.
It depends on what kind of paint you are talking about. If you use one of the IRCC paints, it will improve the thermal performance of the garage walls. Not all paints that claim to provide energy savings qualify as an IRCC. You can look on our website under Technical Info and check out the Coatings Study for a better description of what to look for.
You can also find a distributor of IRCC radiant barrier coatings on the RIMA web site. We have some that have been verified in the “Verified Products” menu section and you can always contact our manufacturers directly. A list of them is located under Members – Manufacturers.