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cobrakai 12-10-2011 09:49 PM

Sliding Door Installation Over Concrete Slab
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I just had an Anderson A400 sliding door installed by home depot that was put on top of my concrete slab foundation. There are 2 things that I'm skeptical of after the installer put it in:

1- A few beads of silicone where put on the concrete foundation and then the patio door put in- is there any other type of flashing necessary on the bottom for a concrete installation?

2- The sill pan is flush on the left side and recessed inward about a 1/4 inch on the right side without an overhang. The installer said it was because the foundation wasn't angled straight. Picture attached....does that look right? I put the silicone down you see in the picture as a precaution.

Should I calling them to correctly install or does this sound adequate? Thanks

titanoman 12-11-2011 12:22 AM

I don't know about the different reveals, but since he didn't seal the sill right (no flashing is needed, but a solid, fat bead of 100% silicone should have been ran across the bottom), he probably just got sloppy with the whole install. Before you siliconed it yourself you could have sprayed the outside bottom with a hose and then called him back to see the water in your house and had him re-do it and make it the same on both sides this time.
I'll bet he didn't put any screws in the track to the floor either.

cobrakai 12-11-2011 07:29 AM

Thanks for the response. So assuming everything else is done correctly, sealing the bottom as I did, and having the door recessed in a little, shouldn't be an issue?

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