My garages face the west and bake the garage in the afternoon. I added insulation panels on the inside. The color of the doors are a light brown and I think this is causing the doors to heat up alot. Will changing the color to an offwhite reduce the heat uptake significantly. Also, will a paint additive like that from hytech (insulation additive) help? Lastly how much paint should be purchased to paint 2 16x7 doors with coats of paint? Thanks
You want a good quality exterior paint with UV protection. And, a color that will reflect light NOT absorb it; your light colors will reflect more than your dark. how much to use? Insulation barriers? This depends on the paint. All manufactureres have their claims, most likely, it probably depends on personal choice.
I do not know about the paint or the additive but if the door is steel and especially under warranty ( and a lot of newer doors have a big warranty for ORIGINAL paint failure) be sure to check the manufacturers' instructions for painting. I do not see a lot of adhesion failures but when they occur they are spectacular. I do know that in general all chalking should be removed and the surface can be etched with TSP but the makers' guidelines are your best bet. Many firms print instructions so you might want to get a copy just in case. Some local door companies do not know what they are talking about and will not care if your door peels because of their incorrect advise. PS If your door is wood panel or flush masonite most makers will say you have voided the warranty with a dark color.
It's all good. Beverly and your Dad are correct
