For a low slope residential roof there are two main options.
Low slope roof optionscheap.
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.
It s constructed of a durable reinforcing mat of non woven glass fibers that have been coated and permeated to a thickness of approximately 2 0 mm.
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.
2 where the roof is not visible consider upgrading to a single ply roofing intended for low slope roofs.
Residential low slope roofing can generally be divided up into two broad categories.
1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many.
The panels are typically 12 to 24 inches wide and run parallel to the slope of the roof.
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.
Standing seam panels are installed over standard plywood roof decking and an approved underlayment such as ice and water shield.
Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically from steep slope to low slope on the same structure.
On low slope roofs you ll have less leak risk with a properly installed low slope roof membrane such as epdm or even modified bitumen.
Standing seam roofing is commonly available in galvanized steel galvalume and copper materials.
An ssr has side joints between the roof panels that are arranged in a vertical position above the roof line.
There are some metal roofs with extra tall standing seams that may be installable as low as 2 12.
These panels generally come with a painted mill finish or a clear acrylic finish.