Conduit In Attic Versus Crawl

Everyone including myself preferred to have the ductwork in the attic as opposed to the crawl space.

Conduit in attic versus crawl.

Interpretation of conduit vs raceway wet location vs outdoor vs nm nm b. Ask question asked 2 years 9 months ago. I was just discussing the issue of attic vs. Spacing is a major factor in deciding whether to use conduit.

Choices besides uf b wet damp location not inside conduit. I can look it up but i think it is the same rule that relates conduit on steel decking with the 1 5. I vote for the attic. Knowing the disadvantages of attic install and the crawl space install.

Crawl space today with a few guys i work with. Rarely will a sealed foam insulated attic deviate more than 15 degrees from the living space temperatures below it. This is especially true when you need to curve the wires around a bend which further limits the space inside the conduit. As the cable on exterior become accessible needs the conduit ditto for the portion from the inverter into the attic is accessible and was run in emt until above 8 foot and then could be considered inaccessible.

Compare that with the daily 140 degree temperatures found in vented attics. Strap ducts out of insulation with 3 ductstraps per specifications. As far as the other subject to mechanical damage. The volume of regulators inside the conduit is limited by code so it might not work to use conduit.

Does wire run in conduit in a crawl space need to be rated for moisture. The outer jacket was removed to expose the wires when run inside the emt conduit. They are not subject to mechanical damage in. Seal supply boxes with mastic.

Just like you do not need a running board when you staple wire on the bottom of joists in a basement if they are boxed in or in a crawl space.