Low Slope Corrugated Roof

Flat coil stock.

Low slope corrugated roof.

Then apply standard asphalt shingles over the membrane. Made of several layers of bitumen surfaces built up roofing is finished by applying an aggregate layer or coating as the top layer. 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. The corrugated metal roof minimum slope is 5 degrees.

During heavy rain the valleys of the corrugations fill up to the height of the crest or even above that. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. Built up roofing is the most popular roofing material used on low sloped roofs. It is the recommended slope as there is no guarantee if you opt for flatter pitch than this.

There are two main reasons why corrugated roof sheeting and low pitches do not mix. Low slope metal roofs require less material which reduces the overall load on the building s structure. Sl 1 1 5 sl 1 75 ml 1 1 5 ml 2 ns 1 1 5 exposed fastener panels. 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. At the upstream end of the corrugated iron roof sheeting the valleys are turned up to prevent. The membrane will outlast the shingles and seal around all nail penetrations. There is only one category of metal roof systems used in low slope applications structural metal panel.

Just like other metal roofs the minimum pitch for a corrugated metal roof largely depends on the profile of the roof. Structural metal panel roof systems can be used for low slope roofs because of their hydrostatic or water barrier characteristics. Low slope metal accessories. 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.

These panels generally come with a painted mill finish or a clear acrylic finish. 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.