How To Hang Conduit Below Roof Trusses

The camber is progressively taken up as the load from the roof covering and ceiling is applied.

How to hang conduit below roof trusses.

Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge. Notches in solid lumber. The beam extends to the far end of the roof hanging over the trusses still sitting. Finding roof rafters from the top of the roof can be difficult since regular stud finders have trouble penetrating the plywood shingles or slate tiles covering the rafters.

After setting the second truss in the same manner workers attach a ridge beam to the peak of both trusses. Also hangers or other supports used to attach and support metallic. Conduit or wiring be embedded within roof assemblies or placed directly below roof decks. Structural roof members shall not be cut bored or notched in excess of the limitations speci fied in this section.

These will stop the entry of rain wind and pests. Here s your code on rafters and trusses. Electrical conduit below metal decks i have a good one 2 years ago in a nudist colony we did there was a tiki bar good sized one 1 500 sq. The camber is designed to suit the span and load.

The notching and boring rules for rafters are much different than the rules we ve learned for joists and studs. If you need to complete roof repairs such as installing new shingles or tiles you must know where the rafters are. Under no circumstances should trusses be. Trusses are built with a camber in the bottom chord.

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. Insulated sheathing so 300 4 d goes away right. R802 7 cutting and notching. Close or seal off the ends with a wood or plastic strip under the panel at each end.

A pdf illustrating the basic strategies for connecting unistrut to bar joists is also available for download by clicking here.