Home Page link

Removing Hot Air from Vaulted Ceiling

Home| Search | About
Login Password
Register Now! Lost Password?

HVAC Discussions - Heating, ventilation and air conditioning. 

Page 1 of 5       1 2 3 > last >> Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Removing Hot Air from Vaulted Ceiling Todd 07-27-2006
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by Todd on July 27, 2006, 12:24 pm
Hi,


I have a two story house with vaulted ceilings throughout. I had AC
put in last year, but the upstairs doesn't really cool down. The front
of the house has the biggest windows, and is West Facing, so it gets
all of the afternoon sun. Last year, I also replaced all of these
windows with much more efficient windows.

However, I can't get it below 80 degrees upstairs. And this can often
be when its cooler outside.

In examining my options, I noticed that I have NO vents on my roof. I
have all vaulted ceilings, so I don't have an attic. I do have some
soffit venting on either side of the slope of my roof.

Can I put turbine vents on the roof? Will this make a difference in
temperature for those upstairs rooms if I can cool the space between
the ceiling joists and the rafters? Again I have NO ATTIC.


Really, what I'm looking for is a way of removing that hot air from the
vaulted ceilings in the summer.

Any suggestions? Turbine vents appear to be an easy solution. Will
cooling the space between the roof and the ceiling help in cooling the
room below it?


- Thanks in advance,

Todd


Posted by Just mee on July 27, 2006, 12:33 pm
Ceiling fans will work well for vaulted ceiling. With a remote


> Hi,
>
>
> I have a two story house with vaulted ceilings throughout. I had AC
> put in last year, but the upstairs doesn't really cool down. The front
> of the house has the biggest windows, and is West Facing, so it gets
> all of the afternoon sun. Last year, I also replaced all of these
> windows with much more efficient windows.
>
> However, I can't get it below 80 degrees upstairs. And this can often
> be when its cooler outside.
>
> In examining my options, I noticed that I have NO vents on my roof. I
> have all vaulted ceilings, so I don't have an attic. I do have some
> soffit venting on either side of the slope of my roof.
>
> Can I put turbine vents on the roof? Will this make a difference in
> temperature for those upstairs rooms if I can cool the space between
> the ceiling joists and the rafters? Again I have NO ATTIC.
>
>
> Really, what I'm looking for is a way of removing that hot air from the
> vaulted ceilings in the summer.
>
> Any suggestions? Turbine vents appear to be an easy solution. Will
> cooling the space between the roof and the ceiling help in cooling the
> room below it?
>
>
> - Thanks in advance,
>
> Todd
>



Posted by on July 27, 2006, 12:35 pm

Todd wrote:
> Hi,
>
>
> I have a two story house with vaulted ceilings throughout. I had AC
> put in last year, but the upstairs doesn't really cool down. The front
> of the house has the biggest windows, and is West Facing, so it gets
> all of the afternoon sun. Last year, I also replaced all of these
> windows with much more efficient windows.
>
> However, I can't get it below 80 degrees upstairs. And this can often
> be when its cooler outside.
>
> In examining my options, I noticed that I have NO vents on my roof. I
> have all vaulted ceilings, so I don't have an attic. I do have some
> soffit venting on either side of the slope of my roof.
>
> Can I put turbine vents on the roof? Will this make a difference in
> temperature for those upstairs rooms if I can cool the space between
> the ceiling joists and the rafters? Again I have NO ATTIC.
>
>
> Really, what I'm looking for is a way of removing that hot air from the
> vaulted ceilings in the summer.
>
> Any suggestions? Turbine vents appear to be an easy solution. Will
> cooling the space between the roof and the ceiling help in cooling the
> room below it?
>
>
> - Thanks in advance,
>
> Todd

Maybe. Soffitt venting might be useful, _if_ it's of adequate inlet
area _and_ air coming in there can move up inside the roof deck and
escape somewhere. ,

Insulation between ceiling and roof deck could block airflow, unless
spacers were installed between insulation and roof deck. You mention
nothing about this.

Ridge vent could work, and is simple, elegant solution, depending on
stuff mentioned above. Thermostatically-controlled fan(s) with
mushroom-looking enclosure would work.

Ask locally, and/or visit big-box.

J


Posted by Todd on July 27, 2006, 12:53 pm
barry@sme-online.com wrote:
> Todd wrote:
> > Hi,
> >
> >
> > I have a two story house with vaulted ceilings throughout. I had AC
> > put in last year, but the upstairs doesn't really cool down. The front
> > of the house has the biggest windows, and is West Facing, so it gets
> > all of the afternoon sun. Last year, I also replaced all of these
> > windows with much more efficient windows.
> >
> > However, I can't get it below 80 degrees upstairs. And this can often
> > be when its cooler outside.
> >
> > In examining my options, I noticed that I have NO vents on my roof. I
> > have all vaulted ceilings, so I don't have an attic. I do have some
> > soffit venting on either side of the slope of my roof.
> >
> > Can I put turbine vents on the roof? Will this make a difference in
> > temperature for those upstairs rooms if I can cool the space between
> > the ceiling joists and the rafters? Again I have NO ATTIC.
> >
> >
> > Really, what I'm looking for is a way of removing that hot air from the
> > vaulted ceilings in the summer.
> >
> > Any suggestions? Turbine vents appear to be an easy solution. Will
> > cooling the space between the roof and the ceiling help in cooling the
> > room below it?
> >
> >
> > - Thanks in advance,
> >
> > Todd
>
> Maybe. Soffitt venting might be useful, _if_ it's of adequate inlet
> area _and_ air coming in there can move up inside the roof deck and
> escape somewhere. ,
>
> Insulation between ceiling and roof deck could block airflow, unless
> spacers were installed between insulation and roof deck. You mention
> nothing about this.
>
> Ridge vent could work, and is simple, elegant solution, depending on
> stuff mentioned above. Thermostatically-controlled fan(s) with
> mushroom-looking enclosure would work.
>
> Ask locally, and/or visit big-box.
>
> J

But how is it that venting the this space will help remove the heat
from the ROOM below it? This is what I don't get. I understand venting
the soffit, but I don't know how that will allow the heat in the room
below (with the vaulted ceiling) to cool down.

Any thoughts on this?

- Thanks,

Todd


Posted by on July 27, 2006, 1:17 pm
First you have to realize how a vaulted ceiling is constructed.
Essentially you have spaces that are seperate channels, running from
soffit to peak of the roof. If you put in a turbine type vent, or a
simple box vent, all that is going to vent is the one channel. You'd
have to put one in between every rafter to vent the whole thing.

A ridge vent is the correct solution. However, the next thing you are
up against is how much insulation was put in and how it was installed.
If it's too thick there may not be room for air to flow above it. If
it's pushed up over the soffit vents, air can't get in. The right way
for this to be done is to use plastic baffles that go in above the
insulation, beneath the decking to keep the channel open.
Unfortunately, you have no way of knowing how yours was done.

You don't have anything to lose by adding a ridge vent. It can't hurt
and if air can flow, it will help a lot.

To answer your other question, this can help reduce your room temp
because it helps decrease the temps directly above the insulation.
However, if it's 80 deg, adding a ridge vent ain't likely to cure that.
I'd get the ace AC guys that did the install back and see what they
have to say. Did they install sufficient returns up high?


Page 1 of 5       1 2 3 > last >>
Similar ThreadsPosted
Vaulted & Cathedral ceilings HVAC load? January 31, 2007, 7:29 am
ceiling fans as supplement to a/c June 26, 2007, 5:48 pm
Ceiling register direction?? January 16, 2008, 11:20 am
Installing a ceiling register boot July 3, 2006, 4:48 pm
Heat ducts by ceiling return vents by floor January 20, 2007, 4:11 pm

Contact Us | Privacy Policy

XML SitemapXML Sitemap