Running Pipe Through Floor Joists San Diego Code

Piping run concealed in finished spaces has to be installed through the joists and protected from physical damage.

Running pipe through floor joists san diego code.

This is an engineering question and has to do with the structural loading of the floor above and the reduced load ratings on those joists. Section g2415 404 piping system installation. Or you could box the pipe run and shield it. A plumber says never cut through the joists and a new waste pipe will need to be installed.

Also a flexible appliance connector has a length limit of 6 feet. Running drainpipes through floor joists is more complicated than running them parallel to the joists. Step 3 understand the joist slopes. Code quotes are from the 2012 irc.

As a general rule you can run 1 2 inch pipe to most fixtures. Area in the middle of the 2 10. When you run your pipes through a joist you will have to be careful with your work. You are going to need to add joists to accommodate the load of the second floor.

The slope should be about 1 4 for each foot of pipe. Step 4 cut the holes. Or find a better way to run that pipe at 2 diameter that seems to be a venting pipe. Running drainpipe through joists calls for meticulous work.

These pipes run from the distribution pipes to the fixtures. Run 3 4 inch pipe to a hose bib or a water heater. Where the toilet is now will be the sink and vanity. In the case of your 2 10 joists the maximum diameter is 35 64 in.

Of solid wood between the top and bottom edges of the joist and the edges of any hole. The holes must follow a straight line across the floor and must ascend or descend so the pipe will be sloped 1 4 inch per foot. Notches can t be deeper than one sixth of the joist depth. If joists are 16 inches on center and pipes run across them at a right angle holes should differ in height by about 3 8 inch.

At this time the joists are not exposed so i am going on the assumption that they are 2 10 s. You also have to leave at least 2 in. Each joist must have a separate notch or hole and each hole should be about 1 4 inch larger. That gives you a 5 1 4 in.

Different fixtures place different demands on supply pipes. Each fixture has a demand rating based on fixture units see chart. One contractor says he will run the pipe to the waste through the joists. A favorite target of electrical inspectors is the improper use of non metallic cable nm in exposed locations such as basement foundation walls or along the face of studs and joists in unfinished framed spaces.

Or be run in black or galvanized steel.