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Cathedral Ceiling John Reichert 12-07-2008
| `--> Re: Cathedral Ceiling tbasc@bellsouth...12-07-2008
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Posted by PeterD on December 7, 2008, 3:40 pm
On Sun, 7 Dec 2008 12:01:58 -0500, "John Grabowski"

>> The kitchen of my house has a cathedral ceiling. The room is cold in the
>> winter and hot in the summer. The house was built in the late 70s and
>> I'm reasonably certain, there is little if any insulation between the
>> ceiling sheet rock and the roof. I can't get into the area between the
>> ceiling and roof to inspect. Any frost or light snow on the kitchen roof
>> melts quickly whereas all the other areas of the house with a flat ceiling
>> and 13 inches of cellulose above, do not. I would like to insulate the
>> ceiling from the inside and then install either a suspended ceiling about
>> 8 foot from the floor. I'm looking for suggestions.
>I think a cathedral ceiling is a nice feature and I would hate to give that
>up. I would explore other possibilities such as removing the existing
>drywall to install better insulation and maintain air flow or at the very
>least look into blown-in insulation. After that I would install an
>additional layer of drywall with a radiant foil in between drywall layers.
>I would also install a suspended paddle fan to keep heat from accumulating
>up there.

This is a very good point. My garage building (steel, fully
insulated) can be 80 degrees at the peak, and 55 at the floor. It
really amazed me as to how much heat was trapped above head level.

In my case we installed ceiling fans to move the heat from the high
peak into the working area. Major difference, totally changed the wayt
we heat the building.


>Perhaps for the summer a small exhaust fan at the peak would help
>with the heat load or locate an A/C return vent up high.

Posted by jloomis on December 7, 2008, 8:28 pm
You can do this without electrical providing air in and air out.
I prefer a natural flow rather than one created by fan useage.
just my 2 peanuts....
jloomis
> On Sun, 7 Dec 2008 12:01:58 -0500, "John Grabowski"
>>> The kitchen of my house has a cathedral ceiling. The room is cold in the
>>> winter and hot in the summer. The house was built in the late 70s and
>>> I'm reasonably certain, there is little if any insulation between the
>>> ceiling sheet rock and the roof. I can't get into the area between the
>>> ceiling and roof to inspect. Any frost or light snow on the kitchen roof
>>> melts quickly whereas all the other areas of the house with a flat
>>> ceiling
>>> and 13 inches of cellulose above, do not. I would like to insulate the
>>> ceiling from the inside and then install either a suspended ceiling
>>> about
>>> 8 foot from the floor. I'm looking for suggestions.
>>I think a cathedral ceiling is a nice feature and I would hate to give
>>that
>>up. I would explore other possibilities such as removing the existing
>>drywall to install better insulation and maintain air flow or at the very
>>least look into blown-in insulation. After that I would install an
>>additional layer of drywall with a radiant foil in between drywall layers.
>>I would also install a suspended paddle fan to keep heat from accumulating
>>up there.
> This is a very good point. My garage building (steel, fully
> insulated) can be 80 degrees at the peak, and 55 at the floor. It
> really amazed me as to how much heat was trapped above head level.
> In my case we installed ceiling fans to move the heat from the high
> peak into the working area. Major difference, totally changed the wayt
> we heat the building.
>>Perhaps for the summer a small exhaust fan at the peak would help
>>with the heat load or locate an A/C return vent up high.



Posted by PeterD on December 8, 2008, 10:31 am
wrote:

>You can do this without electrical providing air in and air out.
>I prefer a natural flow rather than one created by fan useage.
>just my 2 peanuts....
>jloomis

I found the fan usage the most efficient way to do it... It is a large
open area, about 30 x 60 ft, with 12ft eves, and 16ft ridge.

Posted by Wayne Whitney on December 7, 2008, 8:13 pm

> After that I would install an
> additional layer of drywall with a radiant foil in between drywall layers.

Radiant foil between two layers of drywall is useless. In order for
foil to be a radiant barrier, it must face an air space (and not face
up, where dust would accumulate against it). If you have no air
space, then the heat will simply conduct through the radiant barrier,
it won't be a barrier at all.

Cheers, Wayne

Posted by HerHusband on December 7, 2008, 12:59 pm
> The kitchen of my house has a cathedral ceiling. The room is cold in
> the winter and hot in the summer. The house was built in the late
> 70s and I'm reasonably certain, there is little if any insulation
> between the ceiling sheet rock and the roof. I can't get into the
> area between the ceiling and roof to inspect. Any frost or light snow
> on the kitchen roof melts quickly whereas all the other areas of the
> house with a flat ceiling and 13 inches of cellulose above, do not.
> I would like to insulate the ceiling from the inside and then install
> either a suspended ceiling about 8 foot from the floor. I'm looking
> for suggestions.

Do you have any ceiling light fixtures in the kitchen? If so, you could
turn off the power and remove the light fixture. This should let you see
around the electrical box to see if there is insulation behind the
sheetrock.

You may also be able to measure up next to the electrical box to see how
deep the rafters are. Standard R30 fiberglass insulation would need at
least 2x12 joists (11-1/4" deep), though foam insulation may not need as
much depth.

This doesn't offer any "solution" to the problem, but at least you would
know what is currently there.

Anthony

Page 2 of 3       < 1 2 3 > last >>
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