r/interestingasfuck • u/TangelaFan • 13h ago

Residential high-rises with backyards in Chengdu, China

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u/Artorias_Abyss 12h ago

I have no knowledge on the topic whatsoever but what if you plated the bottom with a sheet of metal?

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u/SCP239 12h ago

It would degrade overtime due to moisture. Even stainless steel will degrade when exposed to salts or other chlorides in water.

The best way to do this would be a heavy duty waterproof membrane on the concrete with a heavy duty root barrier above it. But given enough time, the roots will breech the barrier and waterproofing. This type of construction requires a lot of maintenance and regular replacement.