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TOPIC: Skylights and Bay windows

Skylights

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I'm trying to figure out the correct way to flash around skylights. I am using McElroy Maxirib(I believe). Are there any good websites or references on how to do this????
Guest User

1/19/2003
First and foremost we recommend that you contact the manufacturer. As this is a very common type vertical rib panel, you will be using standard sheet metal details. Try to lay the sheets out so they centre on the roofs. I believ the sheets are 36" wide and most skylights are 24". make sure your skylight is a curb mount and that the curb is high enough. Personally I prefer to order two sheets. The first one long enoungh to go 18" past the top of the skylight. I then cut the opening such that the bottom cut is 1/2" short the lower edge of the skylight and the two sides have enough material to fold up the side of the curb to the top. The bottom will be flashed with a 90 degree bent flashing and use profile foam strips to seal it to the sheets. Then fold the 1/2" extension on the side upbends of the sheet around and over the lower end of the curb. Fasten and seal. At the top, I now fold the side upturns of the sheet around the top of the curb 1". Then install another 90 degree flashing wider than the curb by at least 4", cutting the overlap off on a slight angle outward and upward. Bed bed the overlap of each side sheet in butyl tape. Install the upper sheet now leaving it back 4" from the curb and seal the lower edge to the flashing with profiled closure bedded in buytl. Work from the skylight out and it will be easier and everyone will wonder how yo centred the skylight. Hope this makes sense and good luck.
Allan Reid
Dura-Loc Roofing Systems, Inc.

1/19/2003
I am interested in installing a metal roof but have not yet chosen a style or manufacturer. I also am considering adding skylights to the master bedroom at the same time and would be interested to know if you have seen any skylight manufacturers flashing kits and if their flashing systems actually work.
Guest User

5/5/2003
Ultimately, the proper skylight flashing is determined by the configuration of the metal roofing you're installing. Make sure that the flashing is in keeping with the roofing manufacturer's instructions. To answer your question, though, I have seen very good results by using the flashing kits that come with the better brands of roof windows such as Velux, Anderson, and Pella. Todd Miller
Todd Miller
Isaiah Industries, Inc.

5/5/2003
I had several skylights installed on my ribbed metal roof. Now I have severe leakage at one of the skylights, and I fear the others may begin leaking as well. Can someone please comment on proper installation and sealing guidelines? I can provide some digital photos of the installation if anyone can help troubleshoot the installation and the leakage issues.
Guest User

6/15/2003
Please send the photos to me at [email protected] and I will see if I can help at all. Thanks. Todd Todd Miller
Todd Miller
Isaiah Industries, Inc.

6/15/2003
WE OWN A 1995 DOUBLEWIDE IN CENTRAL MISSISSIPPI. WE ARE INTERESTED IN A METAL ROOF, BUT WE HAVE 2 SKYLIGHTS (WHICH WE HAVEN'T HAD ANY PROBLEMS). OUR ROOFER WANTS TO TAKE THEM OUT, HE SAYS HE CAN'T PROMISE THEY WON'T LEAK WITH A METAL ROOF. I DON'T KNOW WHAT TYPE OF SKYLIGHTS THEY ARE. IS THERE SOME INFORMATION ON METAL ROOFS ON DOUBLEWIDES WITH SKYLIGHTS?
Guest User

6/30/2003
I do not know of any information specific to the issue you mention. A few thoughts though: Curb-mounted skylights are typically easier to flash with metal roofing than are flush-mounted skylights. Even a 1995 model double wide may have a roof pitch which is marginally too shallow for metal roofing. Make certain that the metal roofing panel being used is approve dby its manufacturer for a roof of your pitch. Make certain that installation instructions from the manufacturer are followed to the letter. Contact the roofing manufacturer with the skylight question and see if they cannot provide good advice. Todd Miller
Todd Miller
Isaiah Industries, Inc.

6/30/2003
Our ribbed skylights in our metal roof have deteriorated. The skylight rib has 10" centers and the skylights are 38"X 8'. We and our contractor can only find replacements with 9" centers. Can you help us locate skylight panels with 10" rib centers? Are metal roof panels still available with 10" centers? Thank you, George
Guest User

7/11/2003
Was our message received? Our ribbed skylights in our metal roof have deteriorated. The skylight rib has 10" centers and the skylights are 38"X 8'. We and our contractor can only find replacements with 9" centers. Can you help us locate skylight panels with 10" rib centers? Are metal roof panels still available with 10" centers?
Guest User

7/14/2003
Can you email me any photos of this so I can get a more exact idea of what you have? Todd Miller t[email protected] Tel. 800.543.8938 ext 201 Todd Miller
Todd Miller
Isaiah Industries, Inc.

7/15/2003
Todd, I am sending 4 photos of the ribbed skylight by email as jpg files. Thank you for your help. George
Guest User

7/16/2003
Sounds good, George. Unfortunately, I am out of the office for the rest of this week so it may be a few days before I can respond. All Best. Todd Miller
Todd Miller
Isaiah Industries, Inc.

7/16/2003
Put on a metal roof and now have a skylight that is leaking. Used GE silicone 11 sealant but it washes away. The skylight is metal (bubble shaped) and I thought I might use liquid nails. Do you have a suggestion on what I might use that would make the skylight rain proof? John
Guest User

5/2/2004
My suggestion is to always use skylights which are up on top of a curb and then flash them in with metal which matches the roof. It is going to be very hard to find a quality sealant which will not crack over time, due to exposure to UV as well as expansion and contraction. If you must try another sealant, I suggest a butyl rubber product.
Guest User

5/2/2004
I am surprised not to see any mention of tubular skylights in these metal roof applications. Tubulars are so much more effective for lighting and far less expensive. Tru-Lite Tubular Skylights (based in Colorado) have a LIFETIME warranty, are an easy install, and have metal roof jacks for trouble free lighting. I would be happy to discuss with anyone in need, or I can email photos of warehouse applications. Our warehouse energy bill is nill. Alan at Tru-Lite 800-873-3309.
Guest User

5/25/2004
I am surprised not to see any mention of tubular skylights in these metal roof applications. Tubulars are so much more effective for lighting and far less expensive. Tru-Lite Tubular Skylights (based in Colorado) have a LIFETIME warranty, are an easy install, and have metal roof jacks for trouble free lighting. I would be happy to discuss with anyone in need, or I can email photos of warehouse applications. Our warehouse energy bill is nill. Alan at Tru-Lite 800-873-3309.
Guest User

5/25/2004