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Blown In Insulation?

Old 03-23-2015, 07:27 AM
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Default Blown In Insulation?

I have a rental house down here in SW Florida that has about an inch of old blown insulation in the attic. I'm looking to add to it with more blown in pink fiber from Home Depot.

The machine is free with purchase of ten bags. The house is about 1800 sq ft built in 1973

Has anyone down South done this? Is this as easy as it looks and how many bags will I need to get the proper R factor?

Heading to HD tomorrow to read the bags and try and calculate.

Thanks
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Old 03-23-2015, 08:35 AM
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Buy a third more than you think. Try not to cover any vents or buy those chutes to allow air movement. Wear a dust respirator and don't fall through the ceiling.
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Old 03-23-2015, 10:01 AM
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Have you priced it out to an insulation company? I have found a few times that I can get insulation work done as cheap or cheaper than I could buy the materials and do the work myself. If you do get some quotes, make sure to actually call insulation companies. I wouldn't bother pricing the installed price through Home Depot or Lowes.
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Old 03-23-2015, 10:35 AM
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Originally Posted by dasouthards View Post
Have you priced it out to an insulation company? I have found a few times that I can get insulation work done as cheap or cheaper than I could buy the materials and do the work myself. If you do get some quotes, make sure to actually call insulation companies. I wouldn't bother pricing the installed price through Home Depot or Lowes.
This. First house I built a spent a long weekend putting up batts and pretty much hating life. Second house I subbed it out for about 20% less than raw materials. Last project was insulating a portion of a porch (about 400 sq ft) into AC space and it was still cheaper for them to come in. I used Gale Insulation and it looks like they are all over the state.
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Old 03-23-2015, 10:42 AM
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Odds are good that a professional company will be able to do it cheaper than you can buy the materials. I did my first house myself and had the second one done professionally. If you do end up doing it yourself, be sure to install the foam baffles. They are necessary to reduce heat build-up in the attic. It also increases the length of your roof.
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Old 03-23-2015, 11:12 AM
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Not what I was thinking when I read the title. But I would imagine it would itch like hell!
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Old 03-23-2015, 11:48 AM
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Originally Posted by DirtKat View Post
Not what I was thinking when I read the title. But I would imagine it would itch like hell!
I'm sure it would. Like the others said, leave it to a professional!

As to the OP's real intent of the thread, I agree with what's been said. We had one job that for some reason we did the blow-in ourselves. It's pretty easy with 2 guys, one in the attic and one feeding the hopper (that was my job).

There was a couple of different types of insulation. I don't remember why, but we went with the more expensive stuff. If I was doing the attic work myself, I'd go with the no itch type. Can't stress enough about not covering recessed lights, attic venting or anything else that shouldn't be covered.
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Old 03-23-2015, 01:49 PM
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Originally Posted by sugarloaf View Post
Buy a third more than you think. Try not to cover any vents or buy those chutes to allow air movement. Wear a dust respirator and don't fall through the ceiling.
Just helped a buddy of mine re-insulate one of his rent houses. He broke even after his son kicked through the ceiling. And wear a face mask...that crap gets everywhere.

~1400 sq ft and it took 16 bags if iirc
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Old 03-23-2015, 01:51 PM
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Originally Posted by dasouthards View Post
Have you priced it out to an insulation company? I have found a few times that I can get insulation work done as cheap or cheaper than I could buy the materials and do the work myself. If you do get some quotes, make sure to actually call insulation companies. I wouldn't bother pricing the installed price through Home Depot or Lowes.
This, I know first hand ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Old 03-23-2015, 01:53 PM
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Originally Posted by DirtKat View Post
Not what I was thinking when I read the title. But I would imagine it would itch like hell!
Along those lines.....No, but I've been laid on sod.
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Old 03-23-2015, 02:11 PM
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Wait until its 90 degrees out and do the job in shorts and no shirt.
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Old 03-23-2015, 03:56 PM
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Originally Posted by fishingfun View Post
Wait until its 90 degrees out and do the job in shorts and no shirt.
This
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Old 03-23-2015, 05:01 PM
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I blew in the pink insulation over the garage after my house was built. Piece of cake. Like others said, be sure you keep it on the inside of the baffles that channel the air flow through the vented eaves / roof overhang. I can't remember how deep I went. Thinking around a foot to 18 inches.
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Old 03-23-2015, 05:42 PM
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Originally Posted by saltydog251 View Post
I have a rental house down here in SW Florida that has about an inch of old blown insulation in the attic. I'm looking to add to it with more blown in pink fiber from Home Depot.

The machine is free with purchase of ten bags. The house is about 1800 sq ft built in 1973

Has anyone down South done this? Is this as easy as it looks and how many bags will I need to get the proper R factor?

Heading to HD tomorrow to read the bags and try and calculate.

Thanks
Call around you can almost certainly get it done cheaper, offer to pay cash I just had mine done, it was cheaper, paid cash,I didn't have to crawl around attic.

About 10 minutes into doing it yourself you'll wish you didn't.
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Old 03-23-2015, 05:49 PM
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Originally Posted by VanderLaan View Post
Odds are good that a professional company will be able to do it cheaper than you can buy the materials. I did my first house myself and had the second one done professionally. If you do end up doing it yourself, be sure to install the foam baffles. They are necessary to reduce heat build-up in the attic. It also increases the length of your roof.
How much longer is your roof after you installed the foam baffles?
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Old 03-24-2015, 04:31 AM
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According to HD to get R30 I would need 26 bags at $30 and the machine rental is free.

I'll make some calls and get pricing and see If it's worth it
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Old 03-24-2015, 07:27 AM
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Originally Posted by cobia 1 View Post
How much longer is your roof after you installed the foam baffles?
i was scratching my head on that one as well. I could have used this solution for an in correctly fabricated beam one time though...

pretty sure he means the life span of the shingles is increased but who knows.
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Old 03-24-2015, 09:27 AM
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As an electrician I HATE blown in insulation, stuff is awful.
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Old 03-24-2015, 09:35 AM
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Cheapest around it $.65 per sq ft for R30

I did hear that FPL might give some rebates if I use their contractors

Last edited by saltydog251; 03-24-2015 at 12:32 PM.
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Old 03-24-2015, 02:25 PM
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We got about 1400sf house done for us for around $500 last year if memory serves correctly.
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