How To Hang Conduit Below Roof Girders

If metallic conduit or wiring needs to be placed near the roof assembly nrca recommends it be positioned and supported at least 11 2 inches from the bottom side of the roof deck or substrate to which the roof system is applied.

How to hang conduit below roof girders. In order to install a cantilevered beam you must have enough clearance below the joists to install the beam. How to hang ceiling joists. Allow for a minimum of 6 airspace between the ground and the bottom of the beam. Also hangers or other supports used to attach and support metallic.

If it is not a major effort i would recommend re routing the conduit by attaching it to structural steel other than roof deck. Step 7 attach a metal conduit strap on the conduit and onto the building within 3 feet of each box and every 10 feet horizontally or vertically. Conduit or wiring be embedded within roof assemblies or placed directly below roof decks. Use a metal conduit strap that corresponds to the conduit size.

Outdoors use intermediate metal conduit imc or pvc conduit. Attic space a flat roof or a second story depending on your construction plans. Screw self tapping screws or sheet metal screws through the strap and into a structural member of the metal building. Codes have detailed rules regarding conduit size but generally 1 2 inch conduit is large enough for five or fewer wires.

They also help to keep the. The good news is that we illustrate 3 time tested techniques for connecting unistrut channel to bar joists below which means you can choose the strategy that best suits your specific needs. 3 4 inch conduit is used for more than five wires. Notching posts lends itself well to cantilevered beam construction as does the practice of chamfering the corners of the deck.

For most interior home installations emt also called thinwall is strong enough.