How To Install Metal Roofing Around Vent Pipes

Momentarily lift the boot and apply sealant to hold the flashing in.

How to install metal roofing around vent pipes.

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. Bring some chalk for marking purposes. Then move into the attic and apply to the underside of the opening and vent.

Always begin working at the point with the longest peak to eave distance. Here is how you do it. Apply the last row of shingles that is just below the vent pipe as shown in figure 1. How to overcome vent pipes when putting on a metal roof step 1.

Record those measurements on a notepad. Install shingles as normal up to the base of the plumbing vent. A quick step by step guide on how to flash a metal roof. Installing a roof plumbing vent is typically an easier task than flashing a chimney.

Using the tape measure determine the size of the cut into the roof that will be necessary to insert the vent into the space. Use the flashlight to look for water marks on your roof s underside. Slide the rubber boot over the pipe to check the fit. Place the flashing or boot onto the plumbing vent so the base is resting on shingles.

Measure the body of the vent. In this video i cover installing a roof boot for a vent pipe in a metal roof. The metal i m using is called crinkle black i purchased all my materials at h. Figure 2 cut shingle to fit over vent pipe.

Drill starter holes if needed then scew down the vent with the fasteners in the installation kit. 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. How to flash a metal roof. Remember to allow for the lip on the vent mechanism that will fit over the opening and rest on the surface of the roof.

Install the panels leading up to the vent pipe until getting as close as possible to the pipe. Place the cover over the vent opening and screw into place. Metal roof flashing installation. Go up the attic armed with a flashlight.

Here s how to check for a roof leak. Apply a second layer of sealant around the lip of the vent outside. Run a tape measure over the diameter of the pipe and add 1 2 to 3 4 inch to that before making the cut. Trim the flashing in the center of the rubber boot with a roofing knife so it fits snugly around the pipe.

Trace the outline of the base of the rubber boot onto the metal roof with a pencil. Add the metal panels. Use the flashlight to trace it up to its highest point. Continue the next row of shingles cutting a hole for the vent pipe.