Low Slope Corrugated Roof

There are two main reasons why corrugated roof sheeting and low pitches do not mix.

Low slope corrugated roof.

In most occasions a pitch of three in twelve is preferred but this should also take into consideration the manufacturer s recommendations as well the unique condition of the corrugated metal roof. These panels generally come with a painted mill finish or a clear acrylic finish. Low slope metal roofs require less material which reduces the overall load on the building s structure. Structural metal panel roof systems can be used for low slope roofs because of their hydrostatic or water barrier characteristics.

The membrane will outlast the shingles and seal around all nail penetrations. For a low slope residential roof there are two main options. Because of the shallow height of the undulating ridges of the 5v and corrugated profiles and the use of exposed metal fasteners to screw the metal to the roof deck they are limited to a slope that will shed rain quickly. During heavy rain the valleys of the corrugations fill up to the height of the crest or even above that.

Low slope structural roofing generally used on roof pitches ranging from 12 to 3 12 consists of interlocking panels commonly called standing seam roofing that run vertically along the roof surface. Corrugated roofing is an amazing choice for conventional pitched roof despite having the severe limitation about the pitch. Sl 1 1 5 sl 1 75 ml 1 1 5 ml 2 ns 1 1 5 exposed fastener panels. But the taller profiles like standing seam and pbr shown below can be installed on roofs with as low as 1 4 or 1 2 in 12 pitch.

Flat coil stock. The corrugated metal roof minimum slope is 5 degrees. 1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many equivalent products. Low slope metal accessories.

Made of several layers of bitumen surfaces built up roofing is finished by applying an aggregate layer or coating as the top layer. Low slope metal roofs have simple geometries and are easier and less expensive to install that medium to steep slope roofs. This top layer normally is tar over which the gravel is laid. There is only one category of metal roof systems used in low slope applications structural metal panel.

Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. Then apply standard asphalt shingles over the membrane. At the upstream end of the corrugated iron roof sheeting the valleys are turned up to prevent.