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+-- Thread: Flashing for concrete roof. (/showthread.php?tid=7207011)
Flashing for concrete roof. - Mr_Mike - 01-30-2016
Looking for instructions on-line, but I'll ask and hopefully get an answer here first.
My concrete tile roof has felt, then the aluminum close-out strip on top then the tile. No traditional drip-edge.
The closure has weep holes in it.
What is the correct construction technique?
Drip edge - felt - bird closure - tile
or felt - bird closure - tile (existing condition)
or bird closure as the drip edge - felt - tile
Why do I ask? I have a leak on a lower roof. The upper eave of the roof is cut back flush to the wall to accommodate the lower roof peak. I think my leak is the upper roof draining into the wall behind the stucco and entering the lower roof. I can see the drip at that interface. The other possibility is the flashing from the lower roof to the tie-ed in wall is bad. I'm starting at the top and working down with ideas.
I get few times each year to check as we don't get much rain. Tomorrow is one of those days, so I"m looking to do some fixing today.
Re: Flashing for concrete roof. - Mr_Mike - 01-30-2016
OK, no responses.
Turns out the bird blocking has an integral drip edge. Forgot about that. However, it is installed above the felt. I separated the staples between the last row and the next row of felt and installed a new layer of felt over the bird blocking/drip edge. We will see if that helps if it rains tomorrow.
Re: Flashing for concrete roof. - crokett™ - 01-31-2016
I've roofed or reroofed several structures. In every case the felt went over the drip edge. This way if water did make it down to the felt it ran down the roof, over the felt and over the drip edge. I don't know if that would help in your specific situation though.
Re: Flashing for concrete roof. - Mr_Mike - 01-31-2016
crokett™ said:
I've roofed or reroofed several structures. In every case the felt went over the drip edge. This way if water did make it down to the felt it ran down the roof, over the felt and over the drip edge. I don't know if that would help in your specific situation though.
At best, I know the existing condition is wrong. I'm not going to fix the bulk of the roof as its too dangerous on a two story structure. I just want the leak gone.
It does not appear the rain today will be significant. So I'll not learn anything right now.
One step at a time though.