concrete patio in front of buidling- need backfill?

I’d solicit opinions from other contractors.

Arkady

in General Discussion 8 years and 10 months ago

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lblu | 8 years and 10 months ago

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My Park Slope coop need to replace the concrete patio which sits atop the vaulted brick of a one-time coal cellar (common in the area). The contractor says he’ll remove the backfill (sand/gravel) but not replace it. Instead, he wants to pour two layers of concrete? Anyone have any knowledge re why one would need backfill—or whether this will be too much weight?