100 year old metal roof and box gutter

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Author Message   Old_school (Old_school) Senior Member Username: Old_school Post Number: 899 Registered: 01-2009 Posted on Sunday, October 07, 2012 - 09:37 pm:        You are the "doctor"   Drsmith33 (Drsmith33) New member Username: Drsmith33 Post Number: 9 Registered: 05-2010 Posted on Sunday, October 07, 2012 - 05:58 pm:        Thanks for the replies. I will probably do a complete roof. I do not like to do things the wrong way. I take too much pride in my work.   Old_school (Old_school) Senior Member Username: Old_school Post Number: 897 Registered: 01-2009 Posted on Tuesday, October 02, 2012 - 01:44 pm:        A lot depends on how steep the roof is. the steeper the better for your purposes. It is done all the time, just know that it is a "temporary" fix. Use a type of Urethane caulk as that sticks very well to the metal. Hopefully the bottom side of the metal roof is not all rusted. that would be better.   Drsmith33 (Drsmith33) New member Username: Drsmith33 Post Number: 8 Registered: 05-2010 Posted on Monday, October 01, 2012 - 10:30 pm:        That was what I was hoping on doing. Have you ever heard of someone doing this? I am just afraid that this will lead from problematic gutter leaks to water problems in the living spaces. Not sure what the chances are of water going uphill too far under the roof metal. I just REALLY am trying to avoid doing a whole roof! I do not have the time with the other projects I have going on.   Old_school (Old_school) Senior Member Username: Old_school Post Number: 894 Registered: 01-2009 Posted on Sunday, September 30, 2012 - 09:13 pm:        The old metal will be rusted and very thin so it would be hard to get it to solder anyway. Can you tuck it farther beneath and then seal it with a good grade of caulk? Outside of tearing it all off this is about your best bet. sorry about that.   Drsmith33 (Drsmith33) New member Username: Drsmith33 Post Number: 7 Registered: 05-2010 Posted on Wednesday, September 26, 2012 - 09:28 pm:        Long time since I have been on here. Last project went well. I appreciate the help. Now, I have 100 year old tin porch roofs with box gutters. The roofs are in great shape. The box gutters are totally rotted in spots. I want to try to just replace the gutter, not the roof. Can I cut along the roof/gutter line and form new gutters and tuck them up under the roof about 2 inches? I know I would not be able to get a clean solder joint on the old metal. Would this work, considering there is a downslope to the gutter, acting like a layered flashing system, or would I have a problem of water backing up under the old roof? Thanks