Originally Posted By: pdacey
This post was automatically imported from our archived forum.
Inspected this house on Tuesday. The roof is clay tile. I feel there is a possible design flaw in the roof at the back of the house.
At either side of the back patio there are multiple planes that converge to a single small area.
There are four surfaces that converge together. The large area to the back, the slope to the left, the slope to the right and there is an upper roof (not in the Picture) that drains to this area as well. (the metal pan in the center of picture)
[ Image: http://www.nachi.org/bbsystem/usrimages/I/IMG_7244.JPG ]
Now, this pan is upslope of a smaller area of roofing. The pan and roof line are angled and direct the water to the left and goes under, yes under the tiles below.
[ Image: http://www.nachi.org/bbsystem/usrimages/I/IMG_7245.JPG ]
So all of that water will actually flow under these tiles. There is flashing at the wall to the left.
A similar condition exists on the other side of the patio. But on a smaller scale.
[ Image: http://www.nachi.org/bbsystem/usrimages/I/IMG_7247.JPG ]
My gut tells me this could be a big problem during heavy rain. It just seems like a lot of water to squeeze through these to areas. Am I crazy or does anyone else see a concern as well.
Any opinions are welcome.
I've already addressed this with the client and they spoke to the builder and roofer about it. But they just yessed the client and said don't worry about it.
This house falls under our new TRCC rules here and the builder is only responsible for the roof for one year.
There is no code/law/rule to point to to help the client's/my position about this. It's more of a design issue. How do you defend yourself on a design issue?