Roof Valley Tar

Built up roofs or burs also called a tar and gravel roof is a well established and popular style of flat roof that is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat which combine to make a long lasting sturdy roofing system.

Roof valley tar. Woven closed cut and open. Essentially there are three main ways to shingle a roof valley. The valleys on many older houses comprise layers of roofing paper which can deteriorate over time. A roof valley is formed where two roof slopes meet.

The reason why the roof valley is such a sensitive area has to do with all the rainwater and or melting snow that accumulates and flows through the valley on its way into the gutters. Then i run a r. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Water collects in a valley to flow off the roof.

This is how i paper my vallies. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks. Clear any debris in the roof valley and surrounding area. I swear it is the fastest way out there.

Move to the highest end of the valley and work your way down cleaning shingles from both sides of the valley whether they re damaged or not. Stop nailing 6 inches from the center. Roof valleys are troughs that discard runoff water where two sections of sloped roof meet. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary.