Metal Roof Pitch Change Detail

The roofing contractor used a continuous sheet apparently cutting the standing seam and tucking in seam below the cut the flatter section into the seam above the cut the steeper section.

Metal roof pitch change detail.

Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage. Then install your shingles. We need to do something where that change happens so the panels can go down and water can come off hit the lower slope and come off the roof.

We see this quite frequently in log home roofs with porches for example. At one end of the house the roof pitch changes from about 6 12 to about 3 12. Roof pitch the metal roofing panels shown in this manual require a min imum slope of 2 ʺ per foot to ensure proper drainage. The profile refers to the shape the metal sheets take when they bend to form panels.

For longer slopes and lower roof pitches contact fabral for other suitable profiles. Roofing detail for change in pitch troy before you install the shingles install a bituthene underlayment ice water shield winterguard are two brand names over the entire 3 12 pitch and extend it up the 6 12 pitch at least 18. Standing metal seam detail at change of pitch. Be sure to specify both upper and lower pitches when ordering.

The roof plane goes from one pitch to a lower pitch. See the illustration below. Metal roof slope is expressed by a ratio indicating the roof pitch which notes the vertical rise of the roof in inches for every 12 inches the roof runs horizontally in other words dividing the vertical rise and its horizontal span. The panels on the upper slope are attached in the same way as valleys.

We re going to do a pitch transition or change. You ll have a steeper part of your roof turning into a lower slope so there s a steeper pitch up top and a lower pitch on the bottom. Pitch transitions are a common roof detail. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage.

On the lower side the transition flashing extends over the panels and is attached to z flashing with trim screws. Transition flashing is required when a roof makes a change from a steeper pitch to a lesser pitch. I am having a standing seam metal roof installed on my existing home. A roof pitch transition is a line in the roof plane that changes pitch.