Minimum Slope For Standing Seam Copper Roof

A standing seam design assures adequate draining from rain and snow effectively eliminating ponding leaks and related problems typically associated with built up roofs.

Minimum slope for standing seam copper roof. Copper standing seam roofing panel. Depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered. Mbma recommends a minimum slope of 1 2 in 12 2 4 degrees for through fastener metal roof systems and 1 4 in 12 1 2 de grees for standing seam metal roof systems. The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.

Copper roofs are light weight and strong lasting up to 50 years or even more with regular repairs and maintenance. This means for every 12 horizontal units the roof must rise a minimum of one half vertical unit. You can often see such examples of use over metal decks. The minimum recommendations are therefore the same as the base standing or batten seam roof.

The recommended dimensions should be specified from the table below. An upscale copper standing seam roof or roofing accent will look amazing and will differentiate your home from the others on the block. Standing seam manufactures allow applications of metal coverings on slopes of 12 or even more. Mansard roofs are usually steep but they often have changes in their slope.

Standing seam roofing is composed of preformed or field formed pans usually between 14 to 18 inches wide when finished. The associa tion also stresses deflection of purlins and rafters under dead and live loads. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.

These pans run parallel to the slope of the roof and are joined to adjacent pans with double locked standing seams. In retrofit projects a sub framing system is attached to the existing flat roof surface to provide a minimum 12 roof pitch. The metal is highly resistant to fire hail and mildew. Table 8 1c outlines the recommendations regarding flat seam construction.

Through fastener metal roof systems and standing seam metal roof systems. Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12 4 slope. They are based on either standing or batten seam roofing.