Metal Roof Overlap

Paint or prime cut edges to prevent rust.

Metal roof overlap.

Once the first sheet is in place you need to install the remainder of the lowest row of corrugated metal roofing. Mcelroy metal has develop several methods to recover an existing metal roof using the symmetrical 238t standing seam roof system. The sheets should overlap by at least four inches add a bead of caulk where they overlap and at the other end of the building ensure there s an overhang of two inches. Secure the sheets into place with screws.

How to overlap corrugated metal roofing. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Install the roofing screws vertically along each rib in the panel. A basic rule of thumb for installing metal roofing is that the piece of roofing higher up on the slope should always overlap the one below it.

Available systems include a patented frame less metal over metal recover option that provides a low cost retrofit solution over existing exposed fastened panels with ribs up to 1 5 tall. As a first line of defense against water damage it is important that the metal roof overlap be implemented correctly. Because of this you should start at the lowest part of the slope and work upward. Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges.

Most panels come up to 32 feet 9 8 m in length. Continue installing the metal panels making sure that the edges overlap at least 1 in 2 5 cm or as required with the adjacent panel. Angle grinder 1 x research source the fastest option. Wear hearing and eye protection.

Installing corrugated metal roofing will require you to lap the m. This helps to prevent water infiltration. Install metal panels or shingles align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. The installation of metal roofing involves placing large metal panels on the roof.

Do this until the entire roof is covered. Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run. Some panels have pre drilled holes. If yours do not.