re: Ways to keep house cool while waiting to repair AC situation.

Ducts are something to be looked at if somethings been compromised. But again, this is a house thats been operating fine for 4+ years. And probably many years before we purchased. Everything but ductwork updated in 2018. We are pretty sure the culprit is the roof ventilation, but it'll take time to clarify. Not worried about system sizing, light fixtures, or the like. We know it operates properly under the conditions of the house usually. Either simethings broken or the roof ventilation was adjusted incorrectly. We had powered fans before, so know it's not just that. But may be installed improperly. I have people looking into it all. It just takes time. And during that time it's hot.

The thread was to find ways to cool or somewhat counteract the overload in the meantime. I know window units work. Already have one, but they arent cheap to buy one for 6 different rooms. Closed all window blinds. Cut off rooms we don't use. Stuff like that. Hosed off the bricks and roof at about 5. I'm an engineer and have taken some HVAC classes, so know there's a build up of heat in the roof and walls that's released later. And it shows as the biggest problem is from 5 to 8, after the hottest part of the day. Think it helped a little is we only hit 79 instead of 85 upstairs. But it's a pain in the arse. Just trying take advantage of any tricks that may exist.