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Old 09-05-2019, 06:05 PM   #1
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patio roof leak


last year, my patio roof leaked due to the rain. The patio is connected to the house. See pictures.

I went to Homedepot and bought Henry Rubberized wet patch, 5 gallons, and applied over the roof. Rains came and yet it leaks again, patching did not work. I suspected there was standing water that may have caused this?

How do I fix the leaking? Would it be possible to fix this leak issue by installing underlayment and shingles on top of the leaked area? I am afraid if I do this, and it leaked again. Any ideas? pls?
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Old 09-05-2019, 06:14 PM   #2
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Re: patio roof leak


Sadly, you will have to tear much of that "mess" off. Tear off two or more rows above the porch roof and down on the roof to remove the tar mess and whatever else there is. You should, then have someone brake you some flashing to bridge the two roofs, then bring your shingles up on the porch roof and UNDER the flashing, then bring shingles down over the top part of the flashing so water will run over it all.
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Old 09-07-2019, 10:51 AM   #3
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Re: patio roof leak


It doesn't look like DIY project. For experienced roofer (not just shingler) it is project for full day involving - hard removal, possibly carpentry, metal work, flat roof (or low slope) membrane installation, only then shingles and a lot of garbage removal and cleaning
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Old 09-07-2019, 10:18 PM   #4
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Re: patio roof leak


The trick to that roof patch stuff, is thin coats... use some fiber glass mesh tape in the drywall section and lay that in the sticky goop...

your other option, is get that silver crap... mix it up real well, and liberally apply it... its way more runny that the black goop.... but there again thin coats work best...

or spend 2K and do what that other guy said lol
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Old 09-08-2019, 06:43 AM   #5
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Re: patio roof leak


There are times when roof patch will buy you a few extra years. And there are also times when you should admit defeat, and repair the roof proper. The longer you put it off, the more damage, and more costly the repair will be.
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Old 09-08-2019, 06:52 AM   #6
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Re: patio roof leak


I would look at the structure if I was considering a new roof.
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Old Yesterday, 06:43 PM   #7
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Re: patio roof leak


Thanks all for the excellent feedback. I purchased this house last year, and it was built by previous owner.

If i just put shingles on top of this roof, it will probably continue to leak? The right probably just to remove existing layer, and put new shingles, but I thought I would skip this step for time and labor saving, but I could be wrong.
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Old Yesterday, 07:48 PM   #8
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Re: patio roof leak


Quote:
Originally Posted by henrychuc99 View Post
Thanks all for the excellent feedback. I purchased this house last year, and it was built by previous owner.

If i just put shingles on top of this roof, it will probably continue to leak? The right probably just to remove existing layer, and put new shingles, but I thought I would skip this step for time and labor saving, but I could be wrong.
If your house is on fire, do you borrow the neighbors hose, instead of calling the fire dept?
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Old Today, 06:56 AM   #9
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Re: patio roof leak


If you don't strip the roof down to bare wood, you will never see the amount of rotting wood that needs to be replaced. Also Ice and water shield and or 2 ply self adhered rolled roofing needs bare wood to stick. You can not lay it down over existing asphalt.


We still don't the pitch of the porch, but looks shallow to the point shingles would not be recommended. Anything less than 12/4, and rolled roofing is a better way to go.
Some shingles might allow for a 12/3
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