07:01PM | 06/27/05
Member Since: 06/26/05
1 lifetime posts
I mean, the vertical soil and standpipes. Do they have to drill into the concrete slabs after the floors are in? or do they channel it down the airshafts? or maybe they leave "sleeves" in before they pour, as per blueprint. just wonering.


05:12AM | 06/30/05
Member Since: 08/29/04
227 lifetime posts
I was the forman on high rises in Minneapolis and Saint Paul. It really depends on if the floor is poured or pre-stressed concrete planks. On a poured floor, we often set plastic sleeves, on the metal decking before the floor is poured. If, we don't get there in time, we core drill the floor where we need holes.

For pre-stressed plank buildings. These are concrete planks built in a factory 25-45' long, we have to xray the floor and drill the planks in the right location for plumbing.

In very tall high-rise buildings, we actually have locations already built in buildings along the elevator corridors to run our plumbing stacks and risers.

Alot of it depends on the preferences of the architects and engineers.

Good Luck

Raymond VinZant Plumbing Prof.
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