How To Roof A Valley With Tin

The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.

How to roof a valley with tin.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. How to seal metal roof valley. Valley flashings are custom fabricated to any measurements and angles and usually measure 10 in length but can also be bent in 12 lengths.

In a previous video we covered how to flash roof edges before shingling. W valley flashing protects the critical area of your roof where two slopes come together to form a valley. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. Riverside provides roof valley flashing for general contractors roofers and do it yourself home owners.

Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Different codes may require different materials but iko recommends as a minimum a 28 gauge galvanized metal. We can also match any profile. First clean the debris out of the valley including sawdust nails and whatever else is in there.

Painted terne steel with a lead and tin coating. When properly installed w valley flashing will reliably channel run off water down the roof and into the gutter. No one of this affirmat. Water collects in a valley to flow off the roof.

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. Shingle the other side of the valley the same way. Stop nailing 6 inches from the center.

Best practices for sealing the metal roof valley vary based on the slope of the roof. Special pricing available for large quantities. Many roofers cut the shingles across because they say it s safer. In this video we ll flash the valley.

In this video i show you how i do the valleys on a shingle roof. Be sure to check local building codes to ensure you have the proper width for your application. Roof leaks are also very common in the winter when all the snow accumulating on a roof creates a potential for a roof leak to develop especially if a roof valley on your property is not properly flashed.