Metal Roof Slope Transition

A roof pitch transition is a line in the roof plane that changes pitch.

Metal roof slope transition.

Pitch transitions are a common roof detail. 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. Minimum metal roof slope depends on the roof profile building design climate and site location. 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.

Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. We see this quite frequently in log home roofs with porches for example. Just simple 3d animated digital instructions on how to install transition trim on a masterrib metal roof. Measure 1 1 2 from bottom edge of transition flashing.

Install bottom roofing panels first. Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems. Retro split storm collar all style medium retro split storm collar flashing. Masterrib is a 36 w.

Low slope metal roofs require less material which reduces the overall load on the building s structure. 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. No sales pitch or other fluff. Repeat step 3 on the opposite end of the roof transition.

See the illustration below. The roof plane goes from one pitch to a lower pitch. This is a fairly common roof detail. We re going to do a pitch transition or change.