Metal Roof Valley Flashing Detail

In comparison to a closed valley an open valley adds another layer of lining into the valley.

Metal roof valley flashing detail.

If a sheet must be bent a gentle 90 degree bend is the maximum recom mended. This valley flashing material can be manufactured from any metal that will resist the effects of weather. Always be aware of your position on the roof relative to any roof openings roof edges co workers and penetrations. 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.

Bending and bowing aluminum and steel roofing and siding sheets are rollformed from hardened tempered metal for maximum strength. I have my valley custom made with water trough to help with leaking b. With a clean valley you can lay down some peel and stick roofing membrane. 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.

We can also match any profile. Special pricing available for large quantities. Valley flashings are custom fabricated to any measurements and angles and usually measure 10 in length but can also be bent in 12 lengths. What is an open valley roof.

How to secure metal roof valley by clips cleats or edge trapping roofing nails. Wear soft soled shoes to improve traction and to minimize damage to the paint finish. After the self adhering underlayment is installed across the valley a pre bent metal valley lining is installed. Use roof valley cleats at intervals of 24 o c.

Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Longer slopes and lower roof pitches contact fabral for other suitable profiles. Metal roofing panels are slippery when wet dusty frosty or oily do not attempt to walk on a metal roof under these conditions. Riverside provides roof valley flashing for general contractors roofers and do it yourself home owners.

Metal should not be re bent once it has been formed. Fold the top over the roof ridge and cut the bottom along the drip edge metal.