I put in enough material that it squished out around the entire outside perimeter.
Installing roof vent boot.
Make a template using cardboard that s the width of your overhang with a hole the size of the vent cut in it.
Slide the new boot over top and make sure it is sealed completely between the old and new boot.
Climbing on a roof necessarily involves great risk and the likelihood of serious injury or death in the event of a fall.
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The underside of the boot should be covered in paper.
Under this paper there is an adhesive that will seal the boot to the pipe.
Apply the primer tape the base of the pipe vent.
It is recommended that you use the services of a professional roofing contractor to install the perma boot system.
The size of the rectangle will depend on the size of the vents but.
Apply a liberal amount of silicone sealer to the old rubber boot.
After selecting an area to install from inside the building square the template between the roof rafters and outline with a marker.
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.
In the package with the peel and stick roof boot you should find a roll of primer tape and a clamp ring.
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.
Using a sawzall cut any roofing nails in the area of the lower mounting plate flush with the sheathing.
If the boot you are taliking about is covered with a vent hood like for a kitchen or bathroom vent then the higher end of above cost as the hood has to come off before the boot can be worked on.
If you are not trained in.
Have a partner hold the ladder steady so you can work safely.
Next use a reciprocating saw with a rough in blade to cut the out the marked template.
