Pitched Roof Detail With Metal Roof

Metal roof slope is expressed by a ratio indicating the roof pitch which notes the vertical rise of the roof in inches for every 12 inches the roof runs horizontally in other words dividing the vertical rise and its horizontal span.

Pitched roof detail with metal roof. The profile refers to the shape the metal sheets take when they bend to form panels. Profile in the context of metal roofing means the shape that the sheet of metal is bent into to form the panels. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Minimum pitch for metal roof for the most part the minimum pitch for metal roof installations depends on what kind of material you are installing and the method in which the material is being fastened.

The pitch is measured in inches of vertical rise per foot of horizontal run and the 5v crimp profile shown above requires a minimum slope of three in twelve or 3 12 3 inches vertically per 12 inches horizontally. Pitch is the amount of angle or slope the roof has. The minimum pitch however that can be used with many roofing materials such as asphalt shingles or corrugated metal is 3 in 12 3 12 pitch. Certain standing seam metals such as copper zinc and aluminum are not suitable for flat or very low pitched roofs.

The key here is that the water remains channelized which maintains equal loading of the purlins. In retrofit projects a sub framing system is attached to the existing flat roof surface to provide a minimum 12 roof pitch. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage. What is a monopitch roof.

For longer slopes and lower roof pitches contact fabral for other suitable profiles. Moreover low slope metal roofs are not prone to the degradation experienced by organic materials enabling these roofs to better resist the elements. This in turn results in a longer life span and a very low annual. The metal roof company can advise on the correct gutter size for the style of roof her e.

In such instances manufacturers should be consulted. Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage. The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.