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Adding Insulation

 
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Old 12-04-2007, 06:00 PM   #1
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Adding Insulation


Several of my neighbors got to talking and want to add another layer of insulation into their attic ... I've looked at a couple of the homes and they will require a layer of R30 to meet the current standard ... All attics are accessible via a pulldown stair and are approx 750 to 900 sq ft ...
I've priced R30 unfaced locally for about 65 cents per square foot, but I don't have a good idea of labor costs ... I would be doing the job alone, material would be delivered and stored on-site in lower level garages so I would be carrying up a total of 3 flights of stairs ...
Any ballpark numbers would be appreciated ...
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Old 12-04-2007, 07:05 PM   #2
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Re: Adding Insulation


To make it worth your while I would be thinking about $ 1.00 per sq.ft. you should be able to do a house a day without killing yourself.

What's your time worth?

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Old 12-04-2007, 08:51 PM   #3
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Re: Adding Insulation


Around here nobody would use fiberglass batts to add to existing insulation. They would blow it in with an insulation machine. Cellulose or fiberglass can be blown in. It is much better than manually trying to add insulation over existing. It does not make sense to lay in all the batts by hand when you can blow it all in leaving no gaps, not tromping all over the attic on existing insulation, etc. There are certain procedures you should follow for this of course, do some homework first! Make sure that you are doing these folks a good service not just makin some $$.
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Old 12-04-2007, 08:57 PM   #4
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Re: Adding Insulation


Save yourself a lot of crawling around and blow cellulose in. It does a better job of stopping/slowing air infiltration into the existing FG.

Save the homeowners money too blow in at least R-44 if your going up in the attic, heating oil is not getting any cheaper.

After re-insulating a number of Blown FG jobs I would not put Blown FG in a job I an associated with.

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Old 12-04-2007, 09:03 PM   #5
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Re: Adding Insulation


Quote:
Originally Posted by G-Rott View Post
Save yourself a lot of crawling around and blow cellulose in. It does a better job of stopping/slowing air infiltration into the existing FG.

Save the homeowners money too blow in at least R-44 if your going up in the attic, heating oil is not getting any cheaper.

After re-insulating a number of Blown FG jobs I would not put Blown FG in a job I an associated with.

Garett
I think cellulose is better also. Make sure and use the stryofoam channels for air from soffit vents. Be super careful around can lights.
Do some more homework.
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Old 12-04-2007, 09:09 PM   #6
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Re: Adding Insulation


Both good point Dave, Thanks
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Old 12-05-2007, 07:25 AM   #7
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Re: Adding Insulation


I would not be surprised in the next few years if the "myths" of fiberglass finally get exposed....cellulose is the obvious choice.

Unfaced fiberglass has very little, if any, value, and blown could hardly be better. My son's insulation business is getting better, and next year, he may be ready to add the spray foam rig.
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Old 12-05-2007, 08:27 AM   #8
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Re: Adding Insulation


After checking out how the Canadians and the Swedes do insulation I blew cellulose into my attic last year. Blown fiberglass loses value when it gets below 20 degree fahrenheit. Or so I read. I'm convinced. Minnesota.

Last edited by silvertree; 12-05-2007 at 08:30 AM.
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Old 12-20-2007, 05:08 PM   #9
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Re: Adding Insulation


Quote:
Originally Posted by RightConnection View Post
Several of my neighbors got to talking and want to add another layer of insulation into their attic ... I've looked at a couple of the homes and they will require a layer of R30 to meet the current standard ... All attics are accessible via a pulldown stair and are approx 750 to 900 sq ft ...
I've priced R30 unfaced locally for about 65 cents per square foot, but I don't have a good idea of labor costs ... I would be doing the job alone, material would be delivered and stored on-site in lower level garages so I would be carrying up a total of 3 flights of stairs ...
Any ballpark numbers would be appreciated ...
do you have insurance? does the customer use the attic for storage?
do you need to protect the floors for the exterior to the stairway?
if yes to all of the above 1.50 per square footfor all labor. take your time do a neat job.
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Old 04-08-2008, 03:03 PM   #10
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Re: Adding Insulation


Does anybody have any experience with Owens Corning Pink Plus? Seems like this might fit the bill.
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Old 04-08-2008, 04:57 PM   #11
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Re: Adding Insulation


Quote:
Originally Posted by RightConnection View Post
... Any ballpark numbers would be appreciated ...
Would that be Wiggly field or the little league park?

A valuable add on service would be to seal all protrusions in the ceilings, light fixtures and the like. It goes a long way to make any insuation job perform better. Make sure you w/strip the attic pulldowns and there is a styrofoam dome you can get to insulate it.

My choice would be cellulose and ignore the FG when doing your R calculations. FG won't get any better with time, very apt to go the other way IMO.

Good Luck
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Old 04-08-2008, 10:48 PM   #12
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Re: Adding Insulation


cellulose up to your balls is a good rule of thumb

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