You know they can put fans on the roof or in gables right?
Also soffits but not sure if the roofer changed those.
Every ridge is mostly vented in Florida, full soffits that are vented… i have 1 attic fan- kick on once the attic is like 100 or something.
Is there no insulation? On the “floor” of the attic?
The roofing in Florida is very different than up north- watching videos on building small houses up north, the roof is so simple compared to the vents, soffits etc etc we have because its so darn hot.
OK.... From my experience (and doing some AC work as an apprentice/helper when I was in my teens) You have a combo issue here.
First point, well.. unless you're gonna move out of Florida crazy humidity is just part of the game....
- A lot of humidity in the attic. (Can't solve this unless you move the house out of Florida)
- Temp differences which cause condensation (cooler vents, or cold air getting into the attic causing large surface/air temp differences)
- Not enough airflow through the attic to pick up and remove moisture
Addressing the second means better insulating what is cold to lower the surface temp differences. This usually means better insulation around ductwork in the attic (thicker and better sealed), And better insulation between the ceiling and attic air space. Is the current insulation rolls, spray in shredded, or spray foam?
Sounds like you're already taking some steps to address the third. As mentioned, with a ridge vent you have to have good soffit vents along the outside and clear air paths from them. Check that, add soffits as needed. Next step from there is to add some kind of active air mover. You can get bonnets now that have solar panels on top and use those to actively pull air through, not incredibly hard to install can be a DIY project or should be simple for any competent roofing/AC person.
Sounds like the bigger issue is an insulation/sealing problem. You shouldn't be getting enough leakage in or out of the conditioned portion of the house to cause that kind of condensation, or get enough moisture in the primary volume to warp the doors (assuming the AC is running). Secondary issue, as Haus points out, is venting to stabilize attic humidity.
Yeah im not sure thats the case if the problems only started with the roof being redone. Seems like a big coincidence, right? The roof should have a ridge vent but also vents along the soffit, so a constant flow of fresh air is pulled in while the hot air is pushed out. I would also reccomend an actual fan up there on one of the roofs ridge sides with an auto tep turn on. I have one which is set to 135F.
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Aside that I dont know, maybe its an HVAC issue too. One of the primary uses of an AC unit is to pull all the humidity out of the house.
Wow. Big thanks for the overwhelming level of input. I need to do some research and get back with you guys. I’m not sure they have soffit vents. What’s he even mind blowing is the roofer who did the original reroof didn’t do a ridge vent.
There’s definitely most likely a few issues going on here which you guys pointed out. It seems like insulation could definitely be one due to the condensation on inside of doors to attic and potentially (need to measure it) high humidity in air conned portion of house that I’m thinking is leading to all the doors to exterior swelling.
Going to deploy humidity sensors today or tomorrow, take a look at insulation and soffits and report back.
Out of curiosity - what is the best insulation these days? I think prior to the reroof there were fiberglass batts and I think there still may be but I’ll double check.