There are a couple of key types of flashing or trim that are used to seal each part of the metal roofing system.
Standing seam metal roof flashing details.
Standing seam panels offer sleek lines that create a modern look.
The copper roofing laps the valley flashing a minimum of 6 and is folded and locked into a continuous copper locking strip.
At the gable edge use a gable or sidewall flashing.
The panels can be roll formed at the job site or at your local roofing materials supply warehouse.
Double lock seam symmetrical seam one piece snap lock interlock and two piece snap lock interlock.
Thermal expansion contraction of steel panels metal flashing and trim should be installed with sealed end laps that allow for expansion and contraction.
This manner allows for expansion and contraction to be controlled uniformly at one end of the roof.
Mbci manufactures quality standing seam metal roofing panels that are lightweight and last up to 60 years.
The standing seams are laid flat 8 from the vertical wall folded 3 4 and secured with copper cleats spaced 12 o c.
Copper locking strips of the same weight as the flashing are soldered to the pans between seams at least 6 from the wall and engage the base flashing in a 3 4 lock.
Then fillet with one part polyurethane.
Panel endwall flashing counter flashing butyl tape or tube sealant.
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.
This detail shows a method of detailing a valley condition on a standing seam roof.
Panels should be installed with a fixed end and a free end.
Endwall details for standing seam endwall option 1 using counter flashing panel goes down first then the z channel and then the endwall flashing then the counter flashing and finally the tube sealant.
Other flashings include gable trim which runs up the sloped ends of the roof and drip edge or eave trim.
The continuous locking strip is soldered to the valley flashing.
Locate round penetrations centrally in the panel seal with butyl tape beneath base.
This will keep weather out prevent lifting in high winds and provide a neat finished appearance.
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.
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.
Let s take a look at the three most common types of standing seam metal roof flashing.
To provide a drip edge allow an overhang of 1 to 2 inches at the eave.
A typical standing seam panel can be approximately 12 16 and 19 inches wide.
The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.
