There are 4 main kinds of valley installation methods to explore for your roof.
Open or closed valley roof youtu.
Roof valleys are like gutters with a steep pitch.
One of the most appealing aspects to roof shingles running through the valley is that leaves don t get caught up in it.
Reroof america contractor s reroofing project.
This installation video reviews alternate closed cut valley and pipe and sidewall flashing application for certainteed s patriot asphalt shingle.
It is important to remember that a closed valley conceals the valley lining and allows the planes of the roof to blend together.
Open valleys on the other hand leave the metal exposed which may be more pleasing to the eye especially if copper is used as the valley lining.
But the stakes are higher for valleys than they are for gutters in a previous video we covered how to flash.