How To Run Conduit Through A Roof

Difficulty cleaning dryer vent.

How to run conduit through a roof. Just simple 3d animated digital instructions on how to install a pipe boot on a metal roof. Instead of having to cut flashing materials yourself you can buy a fitting boot for your chimney pipe. Although looking at it now the 2008 uses shaded sections for new or modified wording so the thin line might just be for new. To install conduit hangers hold the conduit against the wall where you want it and make a mark on the top and bottom where the hanger will go.

Remove the conduit center the strap between the marks and attach it with a screw. Dryer vents should always be vented through the side of the house and not vented through the roof and ideally the exit should be fairly close to the ground. These work better on smaller round chimneys and may be ideal for a stove chimney in a metal roof. Mounting conduit on existing flat roof any time you see a thin black line to the left of a paragraph in the nec it means that it s new or the wording has changed.

A different type of flashing is a chimney pipe boot. If the vent pipe isn t installed properly the roof may leak through or around the pipe penetration leading to costly repairs. Position the vent pipe up to the bottom of the roof. Terminating the shorter duct run with a dryerjack helps venting through the roof deliver on the promise this shorter route offers.

Lic conduit embedded within or directly underneath roof assemblies. When it does a roof based dryer vent can contribute to damaging the roof. No sales pitch or other fluff. When running wire short distances with few bends such as between boxes 2 and 3 and 3 and 4 you can simply tape the two wire ends together and push them through the conduit photo 13.

The penetration will be oval to have a round pipe exit. For longer distances or runs that have two or more bends run a fish tape through the conduit and tape the wires to it photo 14 and detail photo. For medium snowfall zones and or higher profile roof tiles select the larger model 486 which is as efficient but taller. At less than 5 1 2 above the roof plane it is also low profile for minimal visibility.

By way of comparison the wall thick ness of 1 2 inch thick metallic conduit is comparable to the metal thickness of a 20 gauge steel roof deck. This may lead to leaks and other costly damage. These hangers hold the conduit off the wall so it can run straight into boxes with no offset. See our full range of installation.

With the pipe in a vertical position trace around the pipe using a pencil.