Spray foam questions
Hello all, thanks for any help in advanced.
I built a house in East TN about 2 years ago, and I got sold on closed cell spay foam in my attic. My house has 2×6 walls with R19 in them and the floor is insulated. Right now the temp is around 85 in the afternoon and my A/C runs for about 9 min and then is off for about 3 min. My A/C ducts run through my floor, I have since found that having the A/C ducts in the floor does not benefit having foam insulation in the attic. I have also read that this could keep harmful gasses in your home. My question is, is there a way to properly vent your attic and blow insulation in there or would it be worth it since this seems to be an issue with my electric bill.
I have considered cutting a ridge vent in my roof, Putting cut in attic vents in my roof, or putting in gable vents to try to prevent moisture build up and blowing in insulation. I know that i would have wasted all the money on spray foam but my electric bill is about $80/month more then my neighbor that has about 1500 more sqft, and blown insulation in it. They have 3 less people living in their house but the A/C cycles should not be like that.
I would leave the majority of foam insulation on the roof and gables. I would just remove it in the places that I install vents.
Any advice or words of wisdom would be greatly appreciated.
My A/C has been checked and it is properly sized for my house and is functioning properly.
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