Originally Posted by beerdog
Why must one post be on the slab?
OK, as promised, I now have photos.
Here is a view of the patio taken facing southeast:
Now, corner by corner:
The SW corner of the patio, adjacent to the jam of the sliding glass door:
Obviously, if there were no other way, I could use a sonotube in the mulched area, but the homeowner tells me she thinks there may be utilities under that landscaping. I would do a "onecall" if I were considering a sonotube, but I think I can manage with the post bracket mounted to the slab here.
The NW corner of the patio. Again, I could put a sonotube into the mulched area, and I sincerely doubt there would be any interference with underground utilities there.
The NE corner of the patio.....again, certainly room for a sonotube in the mulched area if that is the only option.
OK, here is the "offending" corner. There is nothing I can do but anchor to the slab here (keep in mind I am hoping to avoid cutting a hole out of the slab):
The slab measures 8' X 14'. We would not be able to mount the two southern posts within 18" of the wall, b/c we must clear the guttering.
I'm sure the patio would be anchored into the foundation of the house (at least, that is the way I always did it when I was building houses), so I'm sure that those two would be stable. It is the two northern mounts that concern me (I have not dug down to see how deep the footings go, but when we get ready to put the plants into the mulched area, I will). Obviously, I would much rather not have the southern two posts mounted to the slab and the northern two posts mounted to sonotube-formed columns.....would prefer to avoid "spoiling" the look of the landscaped area that way.
I like the idea of drilling into the patio and using the epoxy attachment system, but I haven't had a chance to check with city hall yet....that's the next step.
Onward through the fog!!
Cheers from Dugly