The first cap piece is always nailed down with four equidistant nails near the corners two on each side of the peak.
How to do a tin roof peak.
Rather than a single slope a gable roof consists of two slopes that meet at a peak running down the middle of the roof.
If you used r panels complete the last two steps.
Following steps a c below place outside closure strips or vented closure along the full length of the ridge on both sides of the roof.
Notch the trim to lay it over the peak and secure it with 1 4 inch metal to wood screws.
Figure out the slope of the roof by setting a carpenter s level on the underside of one rafter in the attic.
If you used v crimp style tin you are finished.
Measure the roof use measuring tools to find the length and width of the roof from the ground outside.
If the roof is peaked start at the bottom of each side and build up to the top.
Measure the vertical distance rise from the 12 inch mark on the level run to the underside of the same rafter.
When matched to the angle and proportions of other rooflines on the house your gable roof will add visual interest and character to the home making the addition look like an asset that belongs with the house.
Install metal trim along the roof edge and across the peak.
Set the piece of ridge cap aside and snap a chalk line between the marks.
Finish the top by adding a folded peak piece of tin which is already shaped to top your roof.
Nailing the cap in place.