I'm considering using this paint on the underside of my garage attic roof deck. I have asphalt shingles, and the underside deck surface temperature can be 130 degF in the summer. Even after the sun goes down, the heat soak in the shingles keeps the underside of the roof deck a radiator for hours.
I'm wondering how much temperature difference to expect on the roof deck underside.
Any experiences / real-life data with these paints?