Roof cap vents cap vents are commonly placed over the peak to provide passive ventilation for the attic.
How to finish a roof ridge cap.
Use roofing cement to attach the leading edge of this ridge cap piece to the shingles below.
Gluing anything on a roof isn t in our vocabulary.
Align the first ridge cap piece with the end of the shingles and the chalk line.
Nail on both sides of the ridge behind the area that will be covered with the next piece.
Nails are placed along the protruding flanges roughly every 6 inches.
Alternate the direction of the joint.
This is an area of the roof which requires extra care and skill.
Continue up the roof from both side and then cut 3 caps from each tab of the shingle.
Some cap vents require.
In summary to install the ridge cap shingles you simply separate them where they are perforated bend them over the peak and nail them down.
Using the tabs we started at one end working toward the other so the nails were blind and then on the last tab you have to nail it and use some roof cement on the nail neads.
Butt together the beveled ends of two shakes or shingles and join them with stainless steel or hot dipped galvanized nails to make one v shaped ridge cap unit.
Start on the end of the ridge opposite to the prevailing winds.
There are a number of key steps you need to take to avoid mucking this part up.
Foundational aspects of ridge cap installation are covered in this how to install ridge cap video.