Please see my replies, inline:

Kyle Boatright wrote:
A ridge vent only goes on the highest ridge or ridges on your roofline. If
I understand your situation properly, it would go on the peak of the roof.

A roof that is shaped like an A would only have one peak, generally so
one ridge vent. My roof slopes up from all sides so it has more than one
peak. Does that make sense?

The guidelines are reasonable, but this is one case where more may be
better.

From what I can tell, it's a matter of ridge vent to soffit vent ratio.
You need an equal amount of both to make ventilation work?

Ridge vents are very common here in Atlanta. They seem to be a good solution
for allowing air to circulate through your attic and reduce attic
temperatures.

I'm in west Texas and most roofs here have the little square vents every
so many feet. I've never seen a ridge vent.


"JD" wrote in message
...
I'm in the process of getting a new roof and the first roofer wants to
install ridge vents, which I wasn't familiar with. I've done some research
and ridge vents seem to be a good idea? I have some questions:

I have a hip roof so do the ridge vents go on every ridge or just the top
or highest ridge?

I found a web page that talks about the relationship between the amount of
ridge vent and number of soffit vents.

http://www.rd.com/familyhandyman/content/18231/0

If you scroll about half way down the page they talk about Minimum Venting
Requirements. Is the information they provide correct? It says a 1,500 sq
ft attic will need 10 sq ft of venting, half on the roof and half on the
soffits. They say the factor is 1 sq ft of venting for each 150 sq ft of
attic. Is that correct?

--
JD..




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JD..