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Guest User
1/25/2014
To whom it may concern, A few years back, due to the cost of the housing market and unstable workforce, I decided to use two preowned mobile homes put them together with a archititectural type metal roof, there you have it a "hillbilly double wide". I removed the metal siding and replaced with 7/16 chip board and vinyl. I have vented eve's, ridge cap's, and under pinning, double pane windows, of course opened the inside up and tons of remodeling.! Note both mobile homes used in this project have the original galvanized roof's intact, plus the 4.5 x 12 pitch roof I built with hand made trusses and purlins but no underlayment. Ok my problem is moisture I know condensation is the cause, what I need to know is what I can do to solve this problem? Note: I work a 40 hour week with 2 children and wife so price affects all outcome. I.e. so if removing all metal and laying Asphalt felt paper is the answer so be it thank you for your time, SHAWN
Todd Miller
Isaiah Industries, Inc.
1/25/2014
Sounds like a very cool project! Do you have any attic ventilation at all? If not, can you add both intake and exhaust vents? Do you have your ceilings in yet? Can you gain access to the underside of the roof? Did you use plywood or some other form of decking before the metal roof was installed?
Eric Novotny
An informed customer is the Best Customer!
1/25/2014
+1 Very neat application. How are you handling the bath fans, kitchen, etc? What the RH in the home?
Guest User
1/25/2014
Yes I have a full attic, but say you are standing in the attic, the floor you would be standing on is the factory mobile home galvanized roof. overhead there is nothing but the truss atop the truss are the 2x4 stripping atop the strips is the metal. I have not added any insulation or underlayment in or above the attic due to the sometimes heavy sweating of the metal, that is why I am asking questions. Every one around home that I asked advice from has had a different opinion, views and insight on the subject. not to mention that I am kinda embarrassed due to the lack of knowledge and having to do over, but what can I say this was my first large project on my own.
Todd Miller
Isaiah Industries, Inc.
1/25/2014
Do you have any ability to add intake vents at the bottom of the roof and a ridge vent at the peak? I would suggest that, along with insulation on top of the old roof.
Eric Novotny
An informed customer is the Best Customer!
1/28/2014
There may be different opinions but opinions are like you know what... The envelope of the structure needs to be tight against air leaks, the moisture needs to mechanically vented to outside, and you need the insulation layer to line up with the envelope layer. Can you attach a picture? Internet Search for Air Sealing and Insulation
Masters roof
1/30/2014
My opinions The envelope of the structure necessities to be tight against air releases, the dampness requirements to mechanically vented to outside, and you require the cover layer to line up with the envelope layer.

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