Spray foam in the attic?

gamefixer

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OK, so its not about games but it is about my quasi game room. My game room gets INSANELY warm in the summer. I think part of my problem might have something to do with the "reclaimed" closet that I dug out of one of the walls in the room (the builder covered up a usebale 3 foot deep by 15 foot long area). The ceiling in the closet is that 1/2" chip board and its NOT insulated at all on either side. I plan on getting up in the attic and spraying the top of that area with spray foam. I had to buy a kit that covers 220 linear square feet which is way more then I need. I planned on using some of the material around heater registers and pot lights in the ceiling throughout the house but I'm still going to have a bunch of extra material. I hate to toss it so I was thinking about covering the back side of the drywall on the ceiling of my game room (inside the attic) with whats left. Of course I will rake back the lose cellulose before I spray but was wondering if anyone here knew if this was a good or a bad idea. I'll rake the lose cellulose back when the foam cures.

Matt
 
I'm anything but an expert on insulation. Just curious if you have put a radiant barrier and or solar powered attic fans in your attic to keep it from getting so hot in the first place? I'm looking to do that this winter myself.
 
OK, so its not about games but it is about my quasi game room. My game room gets INSANELY warm in the summer. I think part of my problem might have something to do with the "reclaimed" closet that I dug out of one of the walls in the room (the builder covered up a usebale 3 foot deep by 15 foot long area). The ceiling in the closet is that 1/2" chip board and its NOT insulated at all on either side. I plan on getting up in the attic and spraying the top of that area with spray foam. I had to buy a kit that covers 220 linear square feet which is way more then I need. I planned on using some of the material around heater registers and pot lights in the ceiling throughout the house but I'm still going to have a bunch of extra material. I hate to toss it so I was thinking about covering the back side of the drywall on the ceiling of my game room (inside the attic) with whats left. Of course I will rake back the lose cellulose before I spray but was wondering if anyone here knew if this was a good or a bad idea. I'll rake the lose cellulose back when the foam cures.

Matt

That type of insulation is flammable...or the old stuff was, so you should check on that.

-Tim
 
I second radiant barrier. It is far easier than foam and its effectiveness is almost better. It goes on easily with a staplegun and a steady hand.
 
The modern stuff (foam) certainly isn't flammable. Its what I'm putting into my new construction house right now.

By doing so, you essentially insulate the entire area of the house under the roof - so you won't need any insulation in the ceilings below. Your attic would become considered 'conditioned' -- the duct work won't even need additional insulation.
 
I'm anything but an expert on insulation. Just curious if you have put a radiant barrier and or solar powered attic fans in your attic to keep it from getting so hot in the first place? I'm looking to do that this winter myself.

I recently got a quote to have a radiant barrier installed (sprayed on). It was around $1500.00. The solar fans were another $400.00 each but theres an overall tax credit of $700.00 after all is said and done so the fans are almost free. I'm going to have this installed some time in October.

Matt
 
The modern stuff (foam) certainly isn't flammable. Its what I'm putting into my new construction house right now.

By doing so, you essentially insulate the entire area of the house under the roof - so you won't need any insulation in the ceilings below. Your attic would become considered 'conditioned' -- the duct work won't even need additional insulation.

I wasnt talking about spraying the under side of my roof but rather the topside of my ceiling in the game room (under the blown in insulation).

Matt
 
This post got me to thinking about a radiant barrier for my attic (I would install it myself in the winter time :) ). Anyone done this? Were the results noticeable?

link

EDIT: The atticfoil company is in Lewisville, TX.
 
This post got me to thinking about a radiant barrier for my attic (I would install it myself in the winter time :) ). Anyone done this? Were the results noticeable?

link

EDIT: The atticfoil company is in Lewisville, TX.

I have not done it, but will be doing it. I was in an attic that had it done last summer when we were house hunting. The attic was a very reasonable temp. Probably about as warm as we let the inside of our house get. It was quite impressive. It was one of the new Highland homes that they actually get the houses Energy Star rated with solar powered attic fans and everything else to go with it. The foil is supposed to be the way to go "if" you can get to where you need to be to apply it. The paint works, but drops its efficiency to something like 75% in just a few years. If I cannot reach somewhere to do foil, I will probably just buy some of the paint and spray it myself.
 
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