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thegogetter222 06-17-2013 09:44 AM

New construction door in pole barn with ribbed aluminum siding
Hi guys,
The pole barn that came with our house, doesn't have a man door. The siding on the pole barn is ribbed aluminum with 1/2" vertical ribs. I purchased a 32x80 prehung door, have an exposed cavity of 36x90 on this inside, and am ready to frame and cut the siding.

My question is how do I properly seal this against the ribbed siding? My first thought (and what I'm leaning toward), is to remove the brick mold entirely and frame tight to the siding with the aluminum siding acting as the waterproofing layer. Then caulking/foaming whatever gap may be present between the siding and the frame.

Thoughts on this approach?

nealtw 06-17-2013 10:17 AM

I think you would cut for the brick molding to go against the framing. Slide a "J" trim in each side and a flashing at the top.

thegogetter222 06-17-2013 10:21 AM

perfect, thanks Neal as always. Exactly what I was thinking. I have a ton of J channel left over from a vinly siding job that can adhear to the edges of the aluminum siding. then a simple flashing for the top would cover a 1/2" or so of the top brickmold.

nealtw 06-17-2013 10:48 AM

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See how they turned up the edge of the flashing to the wind can't blow rain sideway in to the siding.

WindowsonWashington 06-17-2013 11:55 AM

+1 to neal's recommendation.

That would be a perfect application.

thegogetter222 06-17-2013 12:31 PM

hmmm... interesting. thanks for the pic!

nealtw 06-17-2013 08:11 PM

1 Attachment(s)
this is a better pic of the fold they make so it dosn't leak

thegogetter222 06-18-2013 07:27 AM

thats better! My buddy has a break that can make this for me. I'll show him this for sure. I'm noticing that this is on the bottom of the window... do you think I need one for the bottom of my door? I've never done this before : ) Thanks again Neal

nealtw 06-18-2013 09:05 AM

Not usually in an unheated building that I've seen but others may think so?

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