Installations/Products that facilitate tie-in

Tom Barta
8/18/2014
I have a flat roof that ties in to an 8.5 in 12 pitch roof. Currently the flat is tar and gravel and the pitch is wood shake. I would like to use a metal product on the pitched roof. The problem is the tie-in to the flat which I expect to have to replace at least once before the metal roof. Most roofers want to have at least 12" to roll the flat roof material up on to the pitched part. This part could be handled by extended trim or flashing but as this cannot be secured at the low part and will be bent upon re-roofing it is not the prettiest solution. Trying to color match the metal product would help but you would still be able to see from the street that the metal product does not continue down and that also detracts from the curb appeal. Another option would be to use a metal product that could have its lower parts removed and replaced like asphalt shingles so that re-roofing could be done that way. The problem is that my favorite metal product - standing seam - cannot be removed like that. Even the metal shingle products usually have concealed fasteners and I don't see how they can have their lower rows removed and replaced easily. I have been told that Decra shake can be removed like that but it doesn't seem so if you followed the normal installation instructions. So my question is what metal products can you do this with? The follow-on question is how is it done? Is there some trick? Do you have to deviate from the normal installation? Finally, if anyone has any ideas how I could lower the height for the tie-in to make standing seam a viable option that would be great.
Eric Novotny
An informed customer is the Best Customer!
8/18/2014
How large is the flat section? Why not add just a tiny bit of pitch to the flat section and do it out of metal at the same time. Solve both problems.
Tom Barta
8/18/2014
The flat section is 26 squares. I considered doing this at first but decided against for the following reasons. 1) The largest pitch I could introduce is 1/4 in 12 and this severely limits the choice of standing seam products to ones with very high seams that are not really that good looking for a residence. 2) All the penetrations are in the flat roof. A very low pitch plus penetrations is not standing seam's strongest application. 3) Very high cost. The 1/4 in 12 rated panels also cost more. It is way over my budget.
Eric Novotny
An informed customer is the Best Customer!
8/18/2014
26 squares of flat does change the dynamic and especially if it is laid out more square than rectangular.

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