Metal Roof Valley Flashing Detail

Endlap and or a larger flashing to properly drain moisture from the roof.

Metal roof valley flashing detail.

10 roof valley flashing details figure 13b. Punctures in the center of the valley. 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. When installing metal valley flashing there are a few things to keep in mind from cutting metal roofing to sealing the flashing.

Metal valley trim also known as metal valley flashing is beneficial because it drains water away from the structure of your metal building which helps prevent moisture damage. Fold the top over the roof ridge and cut the bottom along the drip edge metal. Stop course line here 2. How to secure metal roof valley by clips cleats or edge trapping roofing nails.

The detail shows a typical open valley flashing for a shingle or slate roof. 12 metal roof detail. Place pre cut valley piece so that cut angle is. Use roof valley cleats at intervals of 24 o c.

Roof mastic applied along sides of valley flashing. The installer fabricates simple clips or valley flashing cleats whose bent edge interlocks with the folded over or hemmed edges of the metal roof valley flashing to secure the valley to the roof deck. Typical saddle flashing detail 36 valley felt left side 36 valley felt right side 1 2 folded back trim w valley metal w valley metal lapped at ridge 2 lap order of applying certi label shakes or shingles at valley. Avoid the following common errors.

Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Due to its adeptness to forged and actualize altered shapes correct is one in every of architecture s excellent usual substances. Failure to extend the entire width of the metal valley flashing beyond the eave of the roof. Roof valley flashing specifications and details.

Roof valley flashing specifications and details metal roof detail. The cant strip can also be constructed as shown in detail 9 5d the shingles or slate must lap the flashing at least 6. Two different cants are illustrated. Closed cut valley fully replaced with new metal valley flashing.

Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water. Fasteners placed in the exposed center area. Not attempt to walk on a metal roof under these conditions. Drip edge metal valley flashing dormer chimney and kick out flashing shed water away from the connections between roofs walls chimneys and other building assemblies this collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs right in the real world.

These items can be fabricated in many different profiles.