Running Pipe Through Floor Joists San Diego Code

Code quotes are from the 2012 irc.

Running pipe through floor joists san diego code.

When you run your pipes through a joist you will have to be careful with your work. Step 4 cut the holes. You also have to leave at least 2 in. Or you could box the pipe run and shield it.

These pipes run from the distribution pipes to the fixtures. Notches can t be deeper than one sixth of the joist depth. Also a flexible appliance connector has a length limit of 6 feet. A plumber says never cut through the joists and a new waste pipe will need to be installed.

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. Or be run in black or galvanized steel. 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. Step 3 understand the joist slopes.

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. Ken may 10 17 at 2 23. Run 3 4 inch pipe to a hose bib or a water heater. Each joist must have a separate notch or hole and each hole should be about 1 4 inch larger.

The national electrical code which is the basis for all local building codes has specific regulations for installing electrical wires so that they are protected from damage. At this time the joists are not exposed so i am going on the assumption that they are 2 10 s. Running drainpipes through floor joists is more complicated than running them parallel to the joists. Running drainpipe through joists calls for meticulous work.

That gives you a 5 1 4 in. Different fixtures place different demands on supply pipes. Of solid wood between the top and bottom edges of the joist and the edges of any hole. 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.

The slope should be about 1 4 for each foot of pipe. Where the toilet is now will be the sink and vanity. Or find a better way to run that pipe at 2 diameter that seems to be a venting pipe. You are going to need to add joists to accommodate the load of the second floor.

As a general rule you can run 1 2 inch pipe to most fixtures. Piping run concealed in finished spaces has to be installed through the joists and protected from physical damage. Area in the middle of the 2 10. Each fixture has a demand rating based on fixture units see chart.

In the case of your 2 10 joists the maximum diameter is 35 64 in.