not permitted in most building codes. excessive moisture into attic is
not desired. in other codes there is a fire spread issue.
see complete technical answers to this and more at:
http://www.buildingscience.com/resou...al/default.htm

Mike Shapp wrote:
In the process of replacing my upstairs bathroon fan, I found that it was
venting into the attic. Since the fan is directly underneath the ridge, I'm
wondering if there's any reason that I shouldn't vent it out through the
ridge vent?

Thanks in advance.

Mike Shapp