skylight flashing | Ask The Experts Forum

mike demeulles 8/24/2011	Hi, I'm installing a standing seam roof on a A-frame with 21-12 pitch (60 degree) The roofing company supplied all flashing but I'm a little confused on the top backpan flashing for the curb mounted skylights and how this mates with the side flashing, it seems like there is no way to overlap the two, do I have to rely on sealant? A picture would be the best but any info or advice would be appreciated, thanks, Mike	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16485/find/
Todd Miller Isaiah Industries, Inc. 8/24/2011	Usually the side flashings should extend up under the back flashing and if possible the back flashing should extend down the sides of the skylights a bit, but on top of the side flashings. Does that help at all or am I missing the point?	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16486/find/
Guest User 8/24/2011	Thanks for replying, yeah that's how I thought it should go but the backpan is just a right angle and the side flashings have an additional right angle that goes down about an inch on the outside edge so there is no way the side flashing could be lower than the backpan. Mike	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16487/find/
Todd Miller Isaiah Industries, Inc. 8/24/2011	Oh wow. I hate top say it but I'd go back to the guys who supplied that and ask them how you're supposed to make it work.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16488/find/
Eric Novotny An informed customer is the Best Customer! 8/25/2011	Make sure it is right. You are dealing with what is the most probable water entry point. Whoever your roofer is should be able to bend up some of his/her own flashing.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16489/find/
Dick Bus 8/25/2011	Mike, it is very important to properly flash the skylights. This link will take you to our suggested flashing details for square penetrations on a vertical seamed metal roof. http://www.atas.com/Portals/0/Products/Roofs/StandingSeam/InstallGuides/SquarePenetrations%202.pdf. Your metal roof supplier should also be able to provide detailed instructions. Thanks for contacting the Metal Roof Alliance. Let us know if there is anything else we can do for you.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16490/find/
mike demeulles 8/25/2011	Thanks very much for the info and the link. I was to be the roofer until I broke my arm falling from the roof. The guy I hired a guy to finish the roof explained that the backpan gets bent at a 45 degree angle on the outside of the curb edges and that sits above the side flashing which gets tucked under that little overhanging angle bit, It's hard to explain but it makes sense when looked at, it then gets cauked as a precaution, I hope he's right! It's a new house so there won't be any insulation or drywall for a few months so I'll be able to keep a close lookout for any leaks. Thanks again Mike	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16491/find/
David Mongeon 10/4/2012	Your link doesn't work anymore (http://www.atas.com/Portals/0/Products/Roofs/StandingSeam/InstallGuides/SquarePenetrations%202.pdf). Is there a new link?	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/16492/find/

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