If your home has overhead service wires coming in from the utility that connect to a pole on top of the roof the pipe that extends above the roof is probably rmc or imc.
Want to use rmc conduit as patio roof support.
Rigid metal conduit is manufactured to produce a 10 3 05 m length of conduit when a standard coupling is attached.
With the first porch roof support in position you can then continue to work along the porch.
You will need to make sure that each of the posts is plumb.
Both rmc and imc are joined with threaded connections.
Rigid metal conduit and intermediate metal conduit are heavy duty conduits made of galvanized steel.
Most often alternative materials are chosen because the structure needs additional strength or for style reasons to better complement the home s architectural style or landscape.
Nothing in the nec states that you cannot use the same supports for conduit as for other systems.
Patio roof post column options in addition to the ever popular wood posts for outdoor structures can be made from other materials including concrete and steel.
The enclosure must be securely fastened to the support wire with a fastening device specifically identified for the.
There should never be more than the equivalent of four right angle bends between outlets or fittings.
And of course direct lay down is prohibited upon a membrane roof.
Back injury risk upon a roof top emt is usually the way to go.
Conduit should run as straight and direct as possible.
Continue installing porch roof supports.
Standard 20mm plastic conduit will be fine another method would be to use a cable type called hi tuff which is made for outdoor use you wouldn t really need to use conduit with that as long as it s not likely to suffer mechanical damage although it would provide additional protection of course.
Rigid metal conduit and intermediate metal conduit are heavy duty rigid metal tubing used for structural applications typically outdoors.
They are used for the structural piping that houses the wiring for the home s connection to the utility service lines.
Use 2 inch carriage bolts to secure the posts to the mounting brackets.
Wheatland trade sizes 3 through 6 are ul listed for use with directional boring equipment.
Once both of the brackets are secured set a post into them.
To install conduit overhead and underground properly you need to review the appropriate articles of the code.
As stated in section 370 23 d the enclosure s size cannot exceed 100 cubic inches.
Imt has largely replaced rmc in new construction.
370 23 d 2 enclosures fastened to support wires an enclosure may be fastened to a suspended drop ceiling support wire while meeting the requirements of sections 300 11 a and 370 23 d 2.
3 runs of 500 kcmil aluminum xhhw 2 would be more practical.
Conduit supports and installation methods.
Aluminum rmc beats steel rmc in this application too.
Not a ul 6 requirement.
Rigid metal conduit weights and dimensions 10 lengths for information only.
