On Sep 26, 4:36 pm, Ken wrote:
On Sep 25, 7:56 pm, Mikepier wrote:

I did a search and found this. Although this video shows installing a
bath vent fan, it's the same principle, right?

http://www.youtube.com/watch?v=gee3itzjOG0

Yep, that would be the exact same principle. One thing I disagree
with is the nail in the bottom edge that is caulked over. My way is
to not have any nails showing at all. Apparently there is no
consensus on this, because I have seen it both ways. In fact on my
roof, there are two roof vents next to each other, where one has
exposed nails and one does not. Apparently is was two different guys
on the same roofing crew, one who was a "bottom edge nailer" and one
who was not.

Also, I think at the end of the video the guy said work with cold
shingles to minimize the chance of damage. My experience is that cold
shingles break, whereas warm shingles bend. YMMV

Ken

My experience is do it on a warm not hot day also