"Goedjn" wrote in message
news
On 18 Mar 2006 11:16:05 -0800, "Denny" wrote:

Hi, I'm in Toronto Canada. I've just been appointed property manager
for a small church (the fact that I know absolutely nothing about
building maintenance didn't seem to faze the congregation). The
building dates back to 1889, and it badly needs a new roof. I've
received quotes from four roofers. Of the two I'm considering, one
recommends a ridge vent while the other recommends no vent at all.

There is a flat ceiling, so there is obviously "attic" space between
the ceiling and the roof ridge. There has never been any venting, so
the one roofer said you've gotten along without it so far, you might
introduce problems by venting it now. He didn't say what problems there
might be. The other said a vent would help preserve the roof longer.

Which one is giving the better advice? Any thoughts. Many thanks in
advance for your help.

What's the roof itself made out of? Asphalt shingles?
Slate? Sheetmetal? How long did the last roof last?

(I'm inclined to agree with the first guy. If it's
lasted 115 years with no venting, it can't be that
much of a problem.)







115 years using labor and materials from 115 years ago. No guarantee it
will last that long next time. Are you sure it never was serviced during
that time? Likely, just forgotten.

Venting is SOP on almost every roof I have seen. In the summer it equalizes
the attic temp so ice damming and other freeze thaw problems are reduced.
In summer it lets excess heat and humidity escape helping to keep the space
benieth more comfortable and extending asphalt roof lifetime.

A ridge vent is best as it has the most open area but vents in the gable
ends wouldn't be too bad. Stacks would look bad on a church.