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nbmech 11-18-2011 01:05 PM

insulating a 196 ranch
 
Hello,
I have a 1965 era ranch in northeast Ohio where it gets somewhat cold and windy, with limited insulation in the exterior walls. I think I have at best 2.0 or 2.5 inch batts in the walls. The master bedroom with three exposed walls is cold(one wall is 20' and two are 10'). It is over a crawlspace and has baseboard heaters.
I am thinking of adding insulation from the outside by taking the vinyl siding and celotex off, adding insulation and replacing the sheating and siding. I have talked to an insulation installer who told me due to the sagging of the old insulation they wont blow insulation int the walls from the outside.
Do I have a reasonable plan or will it be too cost prohibitive

Windows on Wash 11-18-2011 01:24 PM

If you are removing the siding/sheathing for the sole purpose of insulating, that is going to be a long term ROI.

What does the attic look like?

You will have more potential savings is proper air sealing and insulating of the attic.

nbmech 11-18-2011 07:41 PM

the attic has close to R40. The room is 65 degrees when the hallway, where the thermostat is located, is 70. Im thinking of adding hot water heat under the floor from the crawlspace to take the chill off before I spend too much money.

Windows on Wash 11-18-2011 08:40 PM

Is the crawl conditioned or vented?

nbmech 11-19-2011 08:59 AM

the crawl is unvented, insulated with r13 on the walls and has a poured concrete floor. The temp in there is 67 to 68 degrees now. The bedroom above is 68 at eyelevel ,66 on the floor and the walls are 65. out temp is 46

Windows on Wash 11-19-2011 09:54 AM

Quote:

Originally Posted by nbmech (Post 774427)
the attic has close to R40. The room is 65 degrees when the hallway, where the thermostat is located, is 70. Im thinking of adding hot water heat under the floor from the crawlspace to take the chill off before I spend too much money.

What does close to R40 mean and in what insulation substrate (Fiberglass, cellulose, etc).

Insulation without air sealing is only addressing about 40% of the problem.

Are the bandboards in the crawl sealed?


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