Minimum slope for standing seam metal roof

17

Jul

Minimum slope for standing seam metal roof

The text will explain what is considered the minimum slope for standing seam metal roof. Let’s first define the terms. Basically, low slope standing seam metal roof is the kind of rooftop used on low slope pitches. When we say “standing seam” what is essentially meant is that the structure is made of overlapping interlocked panels that are arranged and secured vertically. On low pitches they can be installed manually, or otherwise mechanical standing seam can be used to guarantee the connection will not come apart at the seams.

Mechanical Standing Seam Profile

Slope specifications

Speaking about standing seam metal roof slope, it is a general and a self-evident knowledge that the steeper it is, the faster it is for snow, rain or drain to come down the roof. Standing seam manufactures allow applications of metal coverings on slopes of ¼ :12 or even more. You can often see such examples of use over metal decks.

Issues to consider

There are however certain safety measures to be made when dealing with low slope standing seam metal roof:

With low slope you want to consider the roof load. Low slope meta l roof is one of the lightest among other roofing projects. On the one hand it makes the installation simple but mind the ponding or accumulation of winter precipitation.
Repeating cases of standing water in five to ten years can result in rust. That is why it Roof Experts use metal with special Zinc coating (275 g/sq.m. or G-90) over metal surfaces. Sometimes our installers also cover the panels with metal plates or with manufacturer-approved waterproofing materials.
I t is very important to secure water tightness at seams. That is why Roof Experts use snap lock system with the special sealant.

Other than that, standing seam metal roof with low slope properly installed and sealed will not cause any problems. It boasts long service life, almost zero maintenance, low operating cost and high weather resistance. With such system you can rest assured that everyone in the house will stay safe, dry and comfortable, rain or shine.