How To Seal Ridge On A Low Slope Metal Roof

Sunday august 5 2018.

How to seal ridge on a low slope metal roof.

Amongst many decisions one has to make when designing a metal building determining metal roof minimum slope is one of them. We re going to do a pitch transition or change. Install the roofing panels and seal between the pipe and panel with a caulking rated for use on metal roofs. You should end up with 2 chalk marks one on each side of the ridge and running along its full length.

It is important to consider the slope of the roof when designing installing and maintaining a metal roof system. Roof pitch is the degree of building s roof 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. 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.

Minimum roof pitch for metal building. Can metal roofing be used on a low slope pitch roof. Typically large footprint single story. Low slope metal roofs require less material which reduces the overall load on the building s structure.

Set the piece of ridge cap aside and snap a chalk line between the marks. Following steps a c below place outside closure strips or vented closure along the full length of the ridge on both sides of the roof. Dry fit the roof boot and mark the location of the top of the gasket on the pipe. Because of the shallow height of the undulating ridges of the 5v and corrugated profiles and the use of exposed metal fasteners to screw the metal to the roof deck they are limited to a slope that will shed rain quickly.

Forgetting to consider the slope can be a major source of problems for metal roof systems. Apply a suitable sealant to the underside of the flange of the roof boot and a ring of sealant around the pipe at the height you marked. Metal roof systems can be installed in either a steep slope or low slope application.