I live in a 1980s trailer with a leaky, old, flat, metal roof, painted with an aluminum coating, that has been patched up multiple times with various things. Being up on the roof for some repairs, lots of spots seemed to flex and pop as if they weren't fastened. Due to a large project with a lack of funds, I was given simple galvanized, uncoated steel sheets to install over the old roof with plans to simply screw down 2x4s horizontally and fasten the new sheets to those. What needs to be done to ensure the new roof does not also leak, or create moisture/condensation issues between the two roofs?
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I had only anticipated to overlap the ridges on the sheet metal and screw them down on the overlap. The slope I measured out as 3:12. The sheets are 86"x38".
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I really have no idea whether this will work. However, if you wish to try it, here's my advice: Maintain as much slope as possible. Space the wood battens no more than 12" apart. Use cap head screws with rubber grommets for fastening. Use a flat seam lock filled with sealant to lock the panels one to the next. Wind uplift, rain, foot traffic, and thermal movement are your enemies in this project.
12/15/2017
Isaiah Industries, Inc.
12/15/2017
12/15/2017
Isaiah Industries, Inc.
12/15/2017
1/9/2018
An informed customer is the Best Customer!
1/9/2018