How To Install Metal Roofing Around Vent Pipes

Figure 2 cut shingle to fit over vent pipe.

How to install metal roofing around vent pipes.

Using the tape measure determine the size of the cut into the roof that will be necessary to insert the vent into the space. Apply a second layer of sealant around the lip of the vent outside. Drill starter holes if needed then scew down the vent with the fasteners in the installation kit. Use the flashlight to look for water marks on your roof s underside.

A quick step by step guide on how to flash a metal roof. Go up the attic armed with a flashlight. Continue the next row of shingles cutting a hole for the vent pipe. Use the flashlight to trace it up to its highest point.

Trace the outline of the base of the rubber boot onto the metal roof with a pencil. Take care the first piece is aligned precisely perpendicular square to the edge. In this video i cover installing a roof boot for a vent pipe in a metal roof. Figure 1 install shingles just below vent pipe.

Bring some chalk for marking purposes. Run a tape measure over the diameter of the pipe and add 1 2 to 3 4 inch to that before making the cut. Add the metal panels. Record those measurements on a notepad.

Metal roof flashing installation. Always begin working at the point with the longest peak to eave distance. Remember to allow for the lip on the vent mechanism that will fit over the opening and rest on the surface of the roof. Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm.

Trim the flashing in the center of the rubber boot with a roofing knife so it fits snugly around the pipe. Place the cover over the vent opening and screw into place. The metal i m using is called crinkle black i purchased all my materials at h. Measure the body of the vent.

Momentarily lift the boot and apply sealant to hold the flashing in. Then move into the attic and apply to the underside of the opening and vent. Use some asphalt roof cement under the cut shingle and around the vent pipe as shown in figure 2. Find the mark that shows the flow of water.

Slide the rubber boot over the pipe to check the fit. Apply the last row of shingles that is just below the vent pipe as shown in figure 1. Here s how to check for a roof leak. Install shingles as normal up to the base of the plumbing vent.

Place the flashing or boot onto the plumbing vent so the base is resting on shingles. Install the panels leading up to the vent pipe until getting as close as possible to the pipe. How to overcome vent pipes when putting on a metal roof step 1. Remove the rubber boot.