pan flashing for skylight

I had to fabricate and install this skylight pan flashing. At 34 ft. anyone top this or do I have the record.

---Looks nice! ---We would use torchdown on something like that although the curb seems kinda low. ---Typically we use torchdown on anything over 8 feet. But we like a high curb to allow for dams and ponding. ---In looking at that I don't know how it doesn't leak. A heavy rain/snow dam should send water up the roof a foot or more. Got Ice & Water under that pan? Lanny

Velux is my preference, but i bow to you. I once did a bank of 4 cirb mounted lites, but nothing like that. Good pic, thanks. B)

TO be honest Tom, I don't even know. 99% of the ones I work on don't get a cricket. Sometimes, I look at the roof and know I'd better add one! :)

Here's a typical replacement I did. The ends extend about 8" past each corner.

Tinner...Been std, (cricket required per UBC/IBC/IRC), as long as I can remember...Is it 24" or 30"? max w/o?

Crickets are pretty-much std/the norm on most res sloped roofs.

There's a lot of roofs performing just fine in complete opposition of std/typical/"code" rqrmnts/roofing practices....

TomB Said: Why was it replaced, if it was performing? Do it once; Do it right. BTW; We just completed a pool house roof, that had extensive skylights, (raised appropriately, w/crickets)....It was an earth-covered roof as well.

There was a leak on the otherside of that large vent that had been leaking for a long time. Carpenters had to reframe the whole area it was so bad. They damaged the skylight pan in the process so that was the reason. It was performing just fine. Been fine now for 2 years.4/12 roof

I've done several similar ones. I think you beat me by several feet though. My largest chimney without a cricket was 8'+. Bent in a full 36" sheet of LLC, with about 10" of it up.

Tom, crickets may be reccomended, but I doubt required. Any roofer could flash thousands of chimneys, never use a cricket, and they'll never leak. Now, take a jackleg, and even with a cricket, I think his batting average will be around 50%. It will come down to the installer every time to get it right.

It is awfully flat! I like to install the Velux windows on something like that. They are individualy set and have space between them and one very slick flashing system! Those boys know what they are doing with roof windows.

The longest one I did was 80 Ft. All home made using Lexicon clear panels. It was over a pool also. I wish I had a picture. I do recall putting in expansion joints. Was just a single row about 60 inches wide in a wood shingle roof. Never had a call back on it. Been is service 12 years before I left PA.

;)

40 ft. span cut in half to allow for drainage in both directions= 20 ft. run X 1/4" = 5" rise at center = 2X6 upper "curb"

That would meet code with a minimum of additional expense. Next time.

Why was it replaced, if it was performing? Do it once; Do it right. BTW; We just completed a pool house roof, that had extensive skylights, (raised appropriately, w/crickets)....It was an earth-covered roof as well.

yes woody on a 40 ft brake

This skylight has been here for 20 years+. All I was asked to do was replace what was there. Are you saying you would advise the homeowner to spend thousands of dollars to modify a custom skylight to meet IBC/IRC? BY the was this is over a pool, if that makes any differnce.

Is that seamless? made from roll stock?

As a consultant, I wouldn't buy that line....Raise'em up & install crickets as per IBC/IRC.