Standing Seam Roof Flashing Details

This detail shows a method of detailing a valley condition on a standing seam roof.

Standing seam roof flashing details.

Let s take a look at the three most common types of standing seam metal roof flashing details. Then fillet with one part polyurethane. Standing seam metal roof flashing details are installed at the intersections and terminations of the metal roofing system to seal the roof and prevent water from entering the roofing system. The continuous locking strip is soldered to the valley flashing.

Locate round penetrations centrally in the panel seal with butyl tape beneath base. The standing seams are laid flat 8 from the vertical wall folded 3 4 and secured with copper cleats spaced 12 o c. Install additional sections of hip ridge flashings with minimum 4 inch end laps and tube sealant at laps. There are a couple of key types of flashing or trim that are used to seal each part of the metal roofing system.

Rivet hip ridge flashing to top flange of zees at 18 inches on center both sides. Whenever possible begin trim installation at the downwind end of the roof farthest away from the source of prevailing winds to allow flashing laps to face away from wind driven rain. Sidewall details for standing seam sidewall option 1 using counter flashing panel goes down first then the z channel and then the sidewall flashing then the counter flashing and finally the tube sealant. Refer to the details in this book for the proper location of fasteners and sealants.

Clipless one piece positive locking standing seam panel that provides a timeless roof appearance. Standing seam consists of sheet metal roofing panels joined side by side and attached to the roofing deck with concealed fasteners. Use hip ridge flashing to locate correct position of zee closures. Apply a row of tube sealant along back face of zee closure adjacent to panel legs.

The copper roofing laps the valley flashing a minimum of 6 and is folded and locked into a continuous copper locking strip. Colonial seam continuous standing seam metal roof panel with an integral seam. The most common flashing for standing seam roofing is the ridge cap which is used at the peak of a roof where two opposing roof slopes join and attaches to the roof with z flashing. Fasten with appropriate substrate fastener at minimum 4 fasteners per zee or 3 inches on center.

Detail of pipe flashing through a standing seam metal roof click on image to see larger version use unitized epdm rubber pipe flashings black preferred with stainless steel draw band. The connecting point where the two separate metal panels meet forms a vertically pointed rib or a seam that is one inch to inch and a half high. The flashings and trims shown in this book are standard parts. Install zee closures onto panels at both sides.