Infinidean
offlineMember
Yesterday we had the insulation sucked out of the attic. It was old and kind of toxic, and totally insufficient for the Florida heat. Tomorrow we're having the new stuff put in. That leaves today, in which I am going to (attempt to) install exhaust fans in both our bathrooms, and fix the A/C ducts. Not a horrible job if I did it on a regular basis, but I'm expecting it to be 8-12 hours work of work, and much in a horrible hot attic.
La how jolly.
moosepucky
onlineMember
Did you look into foam?
That appears to be the newest cat's pajamas as far as insulation. Vapor barrier, air intrusion barrier, and higher R value per inch than anything else.
I did it myself in the walls of the cabin a few years ago. I can tell you one thing, there is NO air intrusion anywhere that stuff went on.
It's not too bad once you get the feel for it. Just DON'T STOP once you get started. That stuff hardens like a rock and it will clog your gun and nozzle in a heartbeat if you even think of stopping.
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moosepucky
onlineMember
ChadMan said:
No mention of flammability or toxicity in a fire. But then fire would have a harder time vent to travel unless it is very flammable.
The foam I used was ASTM E-84 rated. This is something that you should check before you use any building material in a home. You should give the same consideration to your interior furniture, drapes, carpets, etc.
Infinidean
offlineMember
We looked at a foam spray in insulation, but it was out of our price range.
Btw, I got one fan installed. And the other one is about half way there, but it is 116 degrees F in the attic, and I'm spent. I'm going to wait for a couple hours until it's back down to 110. 
Wish I'd have known. Have a friend who sprays the foam. Lives in Jay, Fl. He tells me there is a Fed program in Fl that will pay for a good part of the foam insulation. May be too late for you, but neighbors may be interested.
James
offlineMember
Talk about a coincidence. I've been working in the attic for the past couple of weeks. I started out cutting new soffit vents because my house only had about 10 all the way around. I added about 16 more. Next, I started on the radiant barrier. I got about 1,000 sq feet of radiant barrier installed with about 2,000 more to go. I hope to knock this out Saturday. I resealed the ducts at the air conditioner last year, but I didn't check the entire run from the AC to the rooms and I found some leaks so I"m going to seal them and re-insulate them starting this evening. Once all that is done I'm going to blow in insulation.
Here's a nice tip I got - in the morning, around 6:30 or before the sun starts coming up put sprinklers on your roof. On Saturday I didn't do it and by 11 AM my attic was up to 105 F. The next day I had some help coming over so I put them up to spare them the hell like heats. By the same time the attic temp was only 89 F - cooler than outside
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