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.

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

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.


"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..