Minimum Pitch For Standing Seam Copper Roof

Table 8 1c outlines the recommendations regarding flat seam construction.

Minimum pitch for standing seam copper roof.

A 5 degree roof pitch. In country with heavy snow and tough winter days the metal roof minimum slope is recommended to be 1 12. A 3 degree roof pitch means just over 50mm in every metre so over 3 metres you only have 150mm to play with. Roof pitch multiplier table.

Run in degrees and as percentage the minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Sig zinc and copper recommend that the minimum pitch for a standing seam zinc roof is five degrees with an absolute minimum of 3 degrees. Many modern building designs now incorporate the double lock standing seam system. Seams can also be mitred into cladding pans for a seamless design.

Minimum 3 degree pitch required for roofing. Complete list of roofing types. Modified bitumen roofing requires a minimum roof pitch of 1 4 12 or greater. The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.

We recommend 5 degrees however due to site conditions and execution. Standing seam roofing is composed of preformed or field formed pans usually between 14 to 18 inches wide when finished. Depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered. They are based on either standing or batten seam roofing.

The minimum recommendations are therefore the same as the base standing or batten seam roof. Mansard roofs are usually steep but they often have changes in their slope. The recommended dimensions should be specified from the table below. In retrofit projects a sub framing system is attached to the existing flat roof surface to provide a minimum 12 roof pitch.

There are some opinions that standing seam metal roof minimum slope is 12 but it increases the possibility of leaking on the few first days of snow arrival. A standing seam design assures adequate draining from rain and snow effectively eliminating ponding leaks and related problems typically associated with built up roofs. Roof slope equivalents as rise. Degrees to pitch rise in run table.

Standing seam roof systems must have a minimum roof slope of 1 4 12. Thermoset and thermoplastic single ply roofing requires a minimum roof pitch of 1 4 12 or greater.