Jay Schwab
10/12/2017
Currently we have a older metal roof, not sure on age(15yr?), with 1" ridges spaced about 12" apart. At the cap, there use to be foam that has deteriorated over time. The seller went to replace the foam with expanding foam strips which did not work at the ridges(left 1/32nd to 1/16th gap at the corners). He found that the metal roof was butted pretty close to each other under the cap. Under the metal roof he said there is a foam pad, then shingles with a shingle cap. Under the shingles we have plywood then tongue and grove. The seller suggested using a tape to cap where the metal sheets butt against each other(this is what his roofing contractor suggested....). Im not sure about this, again with how the roof is put together I dont know how much it is suppose to breathe at the cap. I am trying to figure out what the proper fix is for this ridge cap. Can anyone help? Also, I am probably going to replace the lower end seals as well that meet near the gutter. Is there a product to stuff into these spaces? Also most likely will be replacing the exposed seal screws. Is this an easy DIY project? Im pretty handy at pretty much everything I put my mind to. I will try to get some pictures of the ridge this evening or tomorrow.
Todd Miller
Classic Products, Inc.
10/12/2017
Replacing the screws should not be difficult. Replace with a slight lightly larger high quality grommeted screw. For foam closures, check into profilevent.com. I am not sure I understand the ridge. If you can post photos or email to me, that would be great. [email protected]
Jay Schwab
10/25/2017
Just sent you an email with some pictures. Links to pics below, Main ridge, https://imgur.com/pBo0rGu Area where ants were removed. You can see old roof under the foam. https://imgur.com/R0hVbZ9 Area I took the ridge cap off at https://imgur.com/R0hVbZ9
Todd Miller
Classic Products, Inc.
10/25/2017
Someone else may have some ideas but I feel one option is to re-assemble it as it was before, with the foam closures. Another option is to cut pieces of metal to go between the ribs. The pieces should be Z-Shapped. A ridge cap could then lock over them and the pieces be sealed into place. Are there condensation / moisture issues inside the structure? I guess what I am asking is ... is there more to this than just trying to repair the ridge?
Jay Schwab
10/25/2017
Todd, The inspection came back with a note that there could be some moisture issues in the attic, which is VERY small and only in a sliver of the house(less than 1/4 of the house). The rest of the house is vaulted ceilings with no crawlspace. It is not something I was planning to address at this time. I was mostly concerned about the ridge. Right now, I am considering profilevent.com for the foam and have it repaired in that manner. Would sealing this seam be an absolute NO? I am not quite following the use of metal pieces between the ribs, is this just for fastening the cap to? Does this style of ridge cap not vent?
Todd Miller
Classic Products, Inc.
10/25/2017
When we discuss breathability, generally we're talking about ventilating the attic. This does not have enough of a gap between wood decking boards to be letting heat out of the attic, and I suspect there are no intake vents at the bottom of the roof anyway to let air in. The foam closures may have been a foam that let air pass through it ... but I sort of doubt it ... and, again, where would that air have been coming from anyway? So, no, I do not think what you had before was letting air pass through. Therefore, if you want to put a tape in there, you can. It looks like the wood decking originally had a reflective foil face that has deteriorated away. It would be good to have something to protect the wood. The Z Channels I mentioned would have a leg that gets fastened to the roof deck facing uphill. Then there would be a vertical leg the same height as the metal panel ribs. Then the final leg of the Z would be on top and pointing downslope. A new ridge would have to be made that would lock over that leg. These Z Channels would then be cut to go between the metal roof ribs, and sealed in place. It would be easier to go back with foam. You might check with Houston Foam or ProfileVent as possible sources.

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