Time for a reroof

[Copymutt]

Need to address a roof issue created by the original builder.
He added the large gable roofed addition in 76. Design created a 12’ flat valley w/ the smaller gable to the left. Lived here since 77 & my bandaid repair had it adequately flashed & sealed for all these years. Of course that was augmented by shoveling up there after any significant snow. We get feet of snow here & it lays in this valley, melts & eventually finds its way through the roof into the attic, down an interior wall & puddles on the ceiling destroying insulation & sheetrock
Underneath the metal roofing are the original deteriorated asphalt shingles. I installed the metal roof in 81.

My strategy: Would prefer to fix this w/o re-roofing the whole residence.
Pull up both the metal & shingles, add 1/4” ply as required by Grace- Ice & Water Shield (not permissible to lay it directly over planking). Install new flashing. Cover the whole roof w/ Ice & Water Shield. Relay the metal w/ new gasketed screws.

Problems I perceive:
Removing shingles on one side of the ridge lines only will create a significant height difference on the ridge line. Reattaching the ridge cap might look very odd & not function correctly. That’s just my speculation.
As the west most gable section (smaller gable) ties in half way up the main roof there is going to be an issue trying to transition from shingle depth to no shingles. I see no way around this except to pull all the shingles on this side of the main roof & redo that also .
None of the above addresses the inherent overlapped flashing just above the flat valley where the two gables tie to the main roof & get flashed coming down to the flat. I see no way 2’ of snow will not eventually either ice dam or eventually wick up the overlay. Any type of roof seal can be spread at this junction, but it will eventually fail.
I’ve explored reframing an overlay roof to do away w/ the flat entirely, but due to the different heights of the gables it doesn’t appear doable. I’ll be 80 B4 I know it & don’t need to be shoveling roofs.
Open to all advise including harsh criticism to get this resolved.
Thanks

 

[Just_Steve]

Heat strips in the valley.

 

[Copymutt]

Thanks, I’ve tried that in years past. Failed & certainly didn’t help when trying to remove snow.

 

[nadogail]

The design of your roof apparently is not compatible with the location. Higher Roofs with greater pitch encourage the snow to slide off your roof. The use of long corrugated Galvanized Steel panels helps to eliminate Ice Damage.

 

[cgrutt]

Not sure if something like this would work or look acceptable but can you add framing to eliminate the flat valley and create two valleys pitched toward side of building? Obviously would need to be re-roofed.

 

[larry4406]

I concur with @cgrutt 's approach with a full cricket in the bad area.

 

[Copymutt]

Thanks guys, I’m fully aware the design *****. As did a lot of infrastructure when I bought the place. Two buried 55 gal. drums constituted a septic system

I built a miniature cricket model as a solution, but was never able to envision a decent flashing concept for it. The flashing would direct water from both gable runs under the cricket. Discussed flashing that has a preformed water redirect dead center w/ a pro. Life long buddy.
Guess I’ll revisit that. No problem doing the transition to the cricket from the main roof, but not sure about technique where it joins the longer gable
As far as cricket design, my brain wants to run the rafter members in the short direction ( gable to gable) to provide better attachment and decking support under the flashing terminations. Reinforcing w/ fillers in the long direction.
If I were to run typical rafters (long direction) it would involve trying to bevel the two outside ones to match the drop & leave the decking unsupported for several inches past the outside rafters. I’d welcome framing concept for the drop point as two flashings would merge there.
Thanks again. No rush on this. Won’t be jumping into it till my wife is done w/ chemo, hopefully end of April & no more trips to Alb.
Appreciate all the wisdom on this site!

 

[Copymutt]

Hang on, maybe I’m misunderstanding a cricket. Would it be a straight run gable to gable or an additional ridge line roof frame?

 

[readhead]

The cricket is the answer. I can come over and look at it and figure out the flashing if you like. PM me and we can talk about options.

 

[nadogail]

I am curious as to why anyone would want their rain water to run under a cricket.

 

[Fav Onefour]

Raise the roof.
Carry the large gable roof straight across.
The cricket is a nice cheap solution. But, another valley network?
I'm all for saving money, but my time is worth something too. It would drive me nuts to be screwing around with a roof all the time. It's snow country. Those valleys will always be added hassle.
A roof should be work on the day you put it up and the day you replace it. If there is anything in between something is wrong.

 

[readhead]

I don't think he is looking to remodel the entire roof. A cricket would get rid of the two valleys and the flat valley and provide two proper valleys.