After confirming the location of our PEX in the concrete, we started coring through the penetrations today. As before, we had Penhall Company send a technician to do the coring.
The penetrations are for water supply (hot and cold), drains, drain vents, air ducts, hydronic heating/cooling (supply and return), and electrical wiring. The holes (penetrations) range in size from 1-1/4 inch through to 5 inches.
We completed more than half of the penetrations today. We will complete the coring tomorrow.
Getting set up to core through the concrete floor under the island in the Kitchen.
Coring the third hole (in a line). Hot water supply, cold water supply, and the drain. These penetrations are aligned with the wall in the Guest Suite below.
One of the five-inch cores was directly in line with the void in one of our hollow core concrete panels. This core shows the void and the 5-1/4 inches of concrete on top of the hollow core concrete panel.
We drilled the hole for the tub drain in Kate’s bathroom, and managed to avoid hitting the PEX!
There are a number of penetrations under the sink in Kate’s bathroom. The two 4-1/2 inch holes on the left are for both dryer vents, and the 4-1/2 inch hole on the right is for the supply air into Kates bedroom for the displacement air ventilation.