[quote=“EngTech1”]First the Home is a 12/12 Older Victorian , in Great Condition . It had a Complete Tear Off Yrs. ago.
Plywood Looks Good . So It’s 1 Layer T-Locks and 15 lb. Felt. Home is assessable on - Two Sides for Dumpster & Lift .
Plywood Installed , and there is Metal in the Valley’s already the Two Velux Skylights - have the Heavy Gauge -E-Coat - Flashing and the - Large Chimney has a Super Flashing Job - I Inspected all Area’s and NO LEAKS .
First I Like to Start with Valley’s - This Roof is Way to much for Me to do , I’m to Old for this Stuff. - The New Methods seem to favor Closed Valleys vs Open Valleys ?
Second Item - I’d like to get a under Layment for the Shingles - like Grace , but would Prefer One that - Help Keep the Attic Cool .
Tearing It Off in the - Valley Area ?
Tearing It Off - Around the Chimney Area ?
I’m a Tech. Guy so all the Details , Please :)[/quote]
I like a 20 inch 26 gauge roll valley for the valleys. First I run 36 inches of Certainteed Weatherguard and Certainteed Roofer Sellect 15 pound weaved in the valleys before the roll valley is put in place. You can do open valleys too but either do factory painted or better yet go copper.
When you draw a mental picture of your roof I picture a Certainteed Carriage House, Centential Slate, or Grand Manor (in order of expensive to really expensive). With copper flashing of course.
As far as tearing off in the valleys and around the chimnneys. The valley metal will need to be removed. The chimney flashing could be re-used but I like to replace it.
If I did your roof I would first set up tarps drapped along the siding and then put roof jacks and 2x6’s at the eaves around the entire perimeter. Plywood to protect first level doors and window, a/c units, ponds, etc. For plants you have to get creative with 12/12’s to protect them. I like using large totes or 5 gallon buckets. The trick on hot days is to quickly do what you gotta do to ensure that you don’t suffocate the plant. Some home owners really like plants. My wife loves plants and know what she goes through when they die.