Metal Roofing Valleys

When cutting your metal roofing to fit valleys it s important to use the proper tools.

Metal roofing valleys.

Open valley shingle installation an open valley relies on metal flashing for protection. Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water. It s bendable for various pitches. Hemmed for safety and ease of installation.

18 w x 10 white l valley flashing. To read pdf files you need the adobe acrobat reader 6 0 or higher. How to seal metal roof valley. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris.

These items can be fabricated in many different profiles. This will reduce the installed cost of the project especially if there is a significant number of valleys in the roof system being installed. Contractors may be able to reduce the cost of materials on roofing projects by eliminating the metal being installed in the valleys. Engineered for commercial and residential use.

With a clean valley you can lay down some peel and stick roofing membrane. That flashing is left exposed so the roof has visible lines of metal running down the valley. Preformed valley flashing is used to channel water down the roof into the gutters in the roof valley area. W valley is designed to channel water off two intersecting roof slopes and into the gutter system.

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. For example in metal roofing systems valleys are commonly fabricated with hems but can also be fabricated without them in which case they could still be used for metal roofing or any other type of roofing. Some homeowners do not like the look of open valleys while others feel the metal accentuates the roof s shape particularly if copper or painted flashing is used. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

Fold the top over the roof ridge and cut the bottom along the drip edge metal. Valleys are a very important part of a well designed roofing system. Avoid using anything that will melt the galvalume coating such as a chop saw torch or abrasive blade.