Watertight Skylights in Metal Roofs

APRIL JLC 1997 00 Watertight Skylights in Metal Roofs Of all the flashing problems I’ve come up against in my 12 years as a crew foreman in my uncle’s roofing company, sealing skylights in a standingseam roof takes the cake. The method I use today is the product of years of trial and error. The first time I tried it was out of necessity: The skylight counterflashing package hadn’t arrived on site, but we had to get the roofing installed before the weather turned bad. Since I didn’t have my soldering tools with me, I had no choice but to devise a mechanical counterflashing system that would seal the skylight from roof runoff without compromising either the roof or