6-7 degrees warmer upstairs, duct work problem, or insulation problem?
Also, it's only an issue when it's not terribly hot out, when the a/c doesn't have to work hard, it eventually becomes only 3-4 degrees warmer upstairs
The house is from 1940's, has r-11-19 insulation in the attic, and in winter the heat doesn't rise, it's the same as the bottom floor, so I guess that's a sign of attic insulation needed??
But I DON'T want insulation to help warm the upstairs in winter, I like it cool upstairs in winter! It's the summer heat upstairs I can't stand!!
Should I start with getting insulation estimates, or looking at the return air vent? I don't know which I should start with! And like I said, I don't care about insulation helping heat the house in winter, all I care about is cooling it in summer! The ceiling fan does help mix the air but it doesn't fix the problem.
Insulation, or return duct? Thanks in advance