Minimum slope requirements depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered.
Lowest pitch standing seam metal roof.
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.
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.
The traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 3 12 pitch three inches of vertical rise for every foot of horizontal run.
The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.
Anything above that will require you to put out higher cost because they are already considered as higher pitch.
Metal roof panels with lap sealant.
The minimum pitch is typically 3 12 meaning the roof should rise 3 inches for every 12 inches of horizontal foot.
The panels have been designed for application over a wide variety of substrates on roof slopes as low as 1 2 12 pitch.
In 12 0 25 in 12 1 19 metal.
And profiles like standing seam which utilize a concealed connection to the roof deck require only a one and a half inch minimum pitch.
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.
These panels generally come with a painted mill finish or a clear acrylic finish.
That means there is at least 3 of vertical rise to the roof slope for every 12 it goes back horizontally.
Stone coated steel metal roof shingles interlocking 3 in 12.
Metal roof tiles metal roof shingles interlocking 3 in 12.
Most residential metal roofs require at least a 3 12 roof pitch and have no maximum roof pitch.
Basically low slope standing seam metal roof is the kind of rooftop used on low slope pitches.
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.
However there are many mechanically seamed standing seams that are very appropriate for lower pitch roofs usually down to about 1 4 12 most flat seam products will have soldered seams to make them watertight even on a flat roof.
Manufacturers specify a minimum pitch for each of the profiles they offer and sometimes they can be installed at a lower pitch if special underlayment or installation procedures are followed.
That is a 14 degree angle.
Sunday august 5 2018.
Metal roof panels non soldered no lap sealant.
