What size nails should I use?
Taking in to account the size of the felt paper, shingles and roofing deck, the nails should always penetrate the roof deck. If the nails do not penetrate the roof deck, the vent can start to pull up the roofing nails.
Taking in to account the size of the felt paper, shingles and roofing deck, the nails should always penetrate the roof deck. If the nails do not penetrate the roof deck, the vent can start to pull up the roofing nails.