Metal Roof Slope Transition

Pitch transitions are a common roof detail.

Metal roof slope transition.

Just simple 3d animated digital instructions on how to install transition trim on a masterrib metal roof. Masterrib is a 36 w. The roof plane goes from one pitch to a lower pitch. After bottom roofing panels have been installed set one piece of transition flashing down where the top portion non hemmed of the transition flashing lies flat on the upper roof.

Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems. No sales pitch or other fluff. Repeat step 3 on the opposite end of the roof transition. The minimum slope for lapped non soldered seam metal roofs without applied lap sealant shall be three units vertical in 12 units horizontal 25 percent slope.

Fits a36 c4 5 4 steel c channel 1 584 in. The minimum slope for lapped non soldered seam metal roofs with applied lap sealant shall be one half unit vertical in 12 units horizontal 4 percent slope. 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. Low slope metal roofs require less material which reduces the overall load on the building s structure.

We re going to do a pitch transition or change. A roof pitch transition is a line in the roof plane that changes pitch. See the illustration below. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.

This is a fairly common roof detail. Install bottom roofing panels first. Retro split storm collar all style medium retro split storm collar flashing. Measure 1 1 2 from bottom edge of transition flashing.