Roofing repair help

OK this is a new one for me. Been doing this for a while. Stack stone chimney leak on4/12 roof. Stone removed 4-6’ off roof to allow for new cricket build and new pre-flash zbar. Was going to remove Grand Manor shingles from around chimney but they are married to I&W which is married to deck. So entire 9 sq section needs replacing. How do you remove decking covered by GM, I&W shield, and screwed to metal trusses. Has anyone ever done a layover with GM.

OK this is a new one for me. Been doing this for a while. Stack stone chimney leak on4/12 roof. Stone removed 4-6’ off roof to allow for new cricket build and new pre-flash zbar. Was going to remove Grand Manor shingles from around chimney but they are married to I&W which is married to deck. So entire 9 sq section needs replacing. How do you remove decking covered by GM, I&W shield, and screwed to metal trusses. Has anyone ever done a layover with GM.

-max

How do I post pics here, it has been a minute lol