I attached a few pictures of the intersect point of the dormer ridge and the main roof field of my cabin. This is the way the roofers left things after re-shingling. I want to extend the dormer ridge cap shingles under the main field as was the case with the previous shingles. I think that makes for a more leak proof intersection especially during Canadian winters.
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The roof pitch is 6 in12 and the shingles are laminated. The valleys are the original metal valleys. The exposed edge of main field shingles is at the intersection of the dormer ridge and the main roof.
I believe there is some bending and/or cutting of the last couple of caps involved……a bend over the ridge and another bend and cut to allow the cap shingles to run under the main field. And I think the part of the ridge that is exposed needs to be built up so the final ridge is level.
How do I proceed to make the change? What’s best way bend shingles in cold weather? How many cuts and where should they be made on the last cap? How much do I need to remove or redo?
If you need more please let me know?
Step by step instructions with diagrams/pictures would be great or a reference to a site or book.
It appears that there is both skill and art required.to make a secure, goodlooking transition joint.
Thanks
Mauri
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