A typical metal roof overhang may be 2 to 4 inches or even less.
Standing seam shed roof with overhang.
Repairing a metal roof seam with turbo poly seal is simple and it is a do it yourself p.
It s important to understand the life cycle where a steel roof with an aluminum zinc alloy coating can easily last up to 100 years.
Non structural mechanically seamed single locked or double locked roof panel.
The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.
When considering the cost of standing seam versus other roof systems understand the implications of exposed screws maintenance.
Standing seam roofing is composed of preformed or field formed pans usually between 14 to 18 inches wide when finished.
Mechanical field seamed panel system.
The recommended dimensions should be specified from the table below.
Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.
Non structural single locked or double locked roof panel.
This was a quick overview of the most common standing seam metal roof installation techniques and details.
Standing seam systems can be used for either metal roofing which is the most common or metal walls.
A standing seam metal roof usually costs more than other types of metal roofing.
The main idea to remember for standing seam systems is that the fastener is hidden whether the panel is attached to the roof deck using a clip or is directly fastened to the decking material under the vertical leg using a fastener flange.
When framing a roof whether metal shingled or shaked it must be square.
The profile refers to the shape the metal sheets take when they bend to.
When covering the roof with plywood or metal sheets it s necessary to fit the materials to the rafters exactly.
These pans run parallel to the slope of the roof and are joined to adjacent pans with double locked standing seams.
Depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered.
Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.