How To Replace Roof Vent Flashing

To replace flashing around the vent pipe first remove the shingles covering the flange at the back and sides.

How to replace roof vent flashing. Sealing the roof with membrane. Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof. Flashing around chimneys and vents is another story. In simplest terms a new vent pipe boot flashing is slid over the top of the existing one and the top edge of the pan is lapped beneath the overlying shingle course.

Be sure to like and subscribe in order to help me bring you more helpful videos filled with tips and tricks i ve learned over the years. Replace all rubber boots and replace metal penetration flashing. Pry and lift off the flashing. Plenty more videos t.

Position a new vent pipe flashing over the vent push it down into place and nail where shingles will cover it. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Slip a flat bar under the edge of the vent flashing and pop the nails up photo 1. Take your time and remove the flashing gently.

Slide the new flashing over the vent pipe and under the shingles above the pipe. This helps to prevent the nails from popping up over time due to the effects of weather. Plumbing vent pipes that extend through the roof come with metal flashing or rubber boot type flashing to seal the penetrations. Now that you have the old vent flashing out you should brush away any loose dirt and then cut a piece of roofing membrane ice and water dam material to fit over the opening that was cut when the vent pipe was installed through the roof.

There really is no such thing as overkill when attempting to fix a roof leak. Make the patch slightly bigger than the hole on all sides and then glue it down with roofing cement. After this has dried it is a good idea to apply another coat of cement on top of the patch. Pull or cut off any nails.

When installing the roof vent flashing fasten the nails properly covering the exposed nail heads with a little bit of roofing tar. There s no need to lace the flashing pan into the shingles since the boot and bell of the new flashing will shed water around the damaged part of the old one. Open valleys have metal flashing to protect this critical area of the roof.