Let me save everyone the trouble of telling me how dumb it was to assume that a weather forecast with zero chance of rain didn’t really mean much during August in Pittsburgh. I’m dumb. Getting a tarp on was not possible, so what I have now is a half-shingled hip garage roof that has been poured on for about 12 hours. This roof gets good sun most of the day and the garage has four decent-size windows for ventilation. There is new 30# felt and no sign of leaks. Is there any reason not to just resume the shingling asap? My concern is trapped moisture that could do some long-term damage to the old 1X8 decking or the shingles themselves. Will the moisture just “cook” out from the top and evaporate from below over time? The shingles are plain fiberglas three-tab GAFs. Thanks!
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You had the tar paper down already ? Before the rain ? Shingle all you want, watch for wrinkles.
Naive but refreshing !
was just about to say it's not raing "that hard" here ...
then I heard it start to come down even harder!
anyhoo ... paper'd tight?
then yer good to go.
lotsa roofs have been finished in a good summer downpour.
missed the 1st qtr ... but the new coach looks good, huh?
Jeff
Buck Construction
Artistry In Carpentry
Pittsburgh Pa
Hey, thanks to both of you. As for those wrinkles, at 59 there are too many to count (ha ha).
John in Pittsburgh
What everybody else said.
In days of old we taught that the paper was the waterproof surface, the shingles are there to protect it from sun and wind. (That's how "tarpaper shacks" work, the asphalted felt repels water.) Now, in those days, that was a different sort of paper, too <sigh>.
Watch for the wrinkles and go to town. Recall that any "trapped" moisture ought to want to conserve energy--so, if it drips, it ought to go out from under overlaps "to daylight." Evaporation ought to drive in the same direction.