DIY spray insulation ?


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Old 01-08-11, 07:27 AM
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DIY spray insulation ?

like the blue stuff they show on the home improvement shows.
any such thing ?
 
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Old 01-08-11, 08:54 AM
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Probably not DIY friendly as the equipment is, as far as I can tell, not a rentable item, and purchasing would be prohibitive. Maybe in a few years. I'd go for it myself if it were more diy'er friendly.
 
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Old 01-08-11, 08:41 PM
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ok. i thought there may be a "in a can" solution. or something like that.
 
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Old 01-09-11, 03:52 AM
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Maybe for touch up, but a typical can of popcorn repair, for instance, will barely cover 3sf. So it may be cost prohibitive in that respect.
 
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Old 01-09-11, 07:59 AM
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yeah, i am sure it would take a lot of cans. but what would it cost for a guy to come out and do the same sf. that probably isn't cheap either.
 
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Old 01-09-11, 08:20 AM
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There was a thread a while back about someone having an estimate (for their garage ceiling I believe) done. Ahhh here....http://forum.doityourself.com/energy...-30-rolls.html

And you have to consider...the pro stuff forms a solid "sheet", cans put out a bead. Multiple beads are needed to fill any sort of large void.

I had to tear out some foam around my spa once and it took 2 cans of great stuff to fill the void.
 
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Old 01-09-11, 09:10 AM
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They have kits available online that are pretty much the same thing the contractors use. There is a company here in spring Lake N.J. that sells the kits starting around $300. I have to insulate a cantalever section in my house and hope to pick up a kit this week. Tiger Foam Spray Foam Insulation Kits
 
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Old 01-09-11, 09:48 AM
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There is also this place: Foam it Green DIY Spray Foam Insulation Kits

If you buy enough, the closed cell will work out to be around $1 per board foot I think.
 
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Old 01-14-11, 10:35 AM
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I used one of the Tiger Foam kits to insulate part of my house. The kit was not cheap (closed cell foam is not cheap) but it was easy to use and worked out well.

One thing you need to understand is the difference between the open cell foam (such as so-called “Great Stuff”) versus closed cell foam. The closed cell foam involves mixing two comportments – hence the kits that company’s like Tiger Foam sell. The two part closed cell foam is much more durable and a much better insulator then the open cell crap that comes out of a can.


-Mike
 
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Old 01-14-11, 05:19 PM
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Mike, how would it adhere to say a metal roof in my shop. I have 2x8 roof joists with 24" centers. Likewise on the walls. Metal building with steel frame and wood perlins. I have been interested in making it more cozy in my old age and just don't see putting up 24" fiberglas.
 
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Old 01-16-11, 10:18 AM
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after posting this, i saw the tiger foam in a magazine. looks expensive. but if it covers well and does a descent area.

i was also thinking that cutting some panels out of rigid foam, pressing them up in between the joists and sealing the edges with the foam.
 
 

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