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Dumb roofing question...
When you reshingle a roof and replace the underlayment is the underlayment supposed to laid out top-to-bottom or side-to-side??
Watching the roofers across the street roll it out top to bottom...and it just don't look right?
After the recent hail storms out here everyone (and their mother) is doing roofing.
Depending on the pitch of the roof, they might be replacing the shingles with a rubber materiel, which can be rolled out top to bottom.
Its called "Dry-in". AKA Tar Paper. It comes in 15# and 30#.
It gets dried in bottom first, horizontally across the deck.
The next roll overlaps about 2 inches (if marked by the line on the paper)
Simplex or polycap nails get distributed 4-6" apart and around 2 feet in the middle.
standard shingles left to right bottom to top layout.
Shingles going in across the street horizontally...tar paper went in perpendicular to the shingles...at least on some parts of the roof they got it right
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