Broan Vent Replacement

[@fubar5554]

Why would you put the vent hold down nails at the bottom of the vent and not under the shingles where water cant get to them?

[@DependableConstruction]

You have to nail the top and bottom. The reason you nail the bottom is so the wind doesn't blow it up and off. The vent only has 2 nail spots, right side top and left side bottom, i believe. It could be the other way, regardless we do all four corners. What we do on a job is tar the exposed nail heads and then cover with shingle gradual. The gradual helps reflect the sun and prolong the life of the tar, the same as it protects the shingles 3m mat from sun oxidation.

[@murphythedog1637]

Thanks for this video, but you can hop up into the attic, I'm not