Add the metal panels.
How to install metal roofing around vent pipes.
Apply the last row of shingles that is just below the vent pipe as shown in figure 1.
Measure the body of the vent.
Always begin working at the point with the longest peak to eave distance.
Trim the flashing in the center of the rubber boot with a roofing knife so it fits snugly around the pipe.
Figure 1 install shingles just below vent pipe.
How to overcome vent pipes when putting on a metal roof step 1.
Find the mark that shows the flow of water.
Momentarily lift the boot and apply sealant to hold the flashing in.
Installing a roof plumbing vent is typically an easier task than flashing a chimney.
Run a tape measure over the diameter of the pipe and add 1 2 to 3 4 inch to that before making the cut.
How to flash a metal roof.
Trace the outline of the base of the rubber boot onto the metal roof with a pencil.
Apply a second layer of sealant around the lip of the vent outside.
Slide the rubber boot over the pipe to check the fit.
Install shingles as normal up to the base of the plumbing vent.
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.
Place the flashing or boot onto the plumbing vent so the base is resting on shingles.
Use some asphalt roof cement under the cut shingle and around the vent pipe as shown in figure 2.
Drill starter holes if needed then scew down the vent with the fasteners in the installation kit.
Remember to allow for the lip on the vent mechanism that will fit over the opening and rest on the surface of the roof.
Remove the rubber boot.
Then move into the attic and apply to the underside of the opening and vent.
Using the tape measure determine the size of the cut into the roof that will be necessary to insert the vent into the space.
A quick step by step guide on how to flash a metal roof.
Figure 2 cut shingle to fit over vent pipe.
The metal i m using is called crinkle black i purchased all my materials at h.
Place the cover over the vent opening and screw into place.
Here is how you do it.
Bring some chalk for marking purposes.
Take care the first piece is aligned precisely perpendicular square to the edge.
Record those measurements on a notepad.
Go up the attic armed with a flashlight.
Install the panels leading up to the vent pipe until getting as close as possible to the pipe.
Metal roof flashing installation.
Use the flashlight to look for water marks on your roof s underside.
Here s how to check for a roof leak.
