I am in the process of getting estimates to re-roof our 14 year old
home. We live in the Southeastern US and have asphalt shingles, but
they are severely worn out and starting to crack. My question is
regarding ridge vents. None of the homes in our sub have them. I
imagine that is one reason why the roof has failed prematurely. Can
ridge vents be added when re-roofing, or must the whole thing be torn
off first? Thanks for any advice you can give.
Venting takes a systems approach.
Is there enough vent area at the eaves?
Is the roof sheathing set up for a ridge vent?
I would pay attention to Bozrath's warning about the condition of the
Include in any contract, a unit cost for replacement.
If it were my roof, I'd tear off what's up there now.
Also, look at Building Science Corporation web site.
I assume you're talkinga about adding the ridge vent but not doing a
complete tearoff...if so, I'd strongly recommend against putting the new
layer of the old, particularly if the existing layer is badly failed--it
will just accelerate the aging of the new ones and the few bucks save
aren't worth it, imo...
On 8/13/2005 10:19 AM US(ET), bugbear took fingers to keys, and typed
Ridge vents can be added at any time, including roofs that have been
shingled recently or even years ago. You can do it yourself if you are
not afraid of heights, have basic carpentry skills, and have access to
tools like a chalk line, hammer, and circular saw. Here's a how-to:
and hopefully your wood hasn't rotted.
Helped a guy last month (nice time of the year to do shingles!!!) and almost
every board had to be replaced. More or less doubles the cost.
Any roofing company doing work nowadays will know there needs to be a ridge
Years ago, all roof shingles were three tab design. they all look pretty
much the same aside from color. Architectural shingles are more random
looking. Some look like cedar shakes, some closer to a slate shingle.
Like anything else, the more you pay . . . . . .
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