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.
Residential low slope metal roof.
Low slope metal roofs provide years of low cost low maintenance performance.
A low slope roof is one whose slope is less than 3 12.
Self adhesive flashing membrane under the shingles prevents leakage on low slope roofs.
It is a planks on rafters roof that was originally tar and gravel.
There are several benefits of a low slope roof.
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.
They have simpler geometry that is often much less expensive to construct and low slope roofs require fewer materials than a steep slope which reduce material costs.
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.
Their attractive durable granule finish comes in a variety of colors to match a home s distinctive design needs.
Low slope metal roofs have been a preferred roof covering for commercial institutional and industrial buildings for years because of their ability to protect against the elements to allow water to drain away from the roof surface and to keep building contents and occupants dry and comfortable.
Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.
Minimum metal roof slope depends on the roof profile building design climate and site location.
The roof 50 squares has some complexity because of a 45 degree house section and a chimney.
They can be used alone or in combination with roof fast base sheets.
The panels have been designed for application over a wide variety of substrates on roof slopes as low as 1 2 12 pitch.
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 roofs have simple geometries and are easier and less expensive to install that medium to steep slope roofs.
Low slope 1 5 per 12 residential roof.
Flintlastic sa products feature easy and clean application and also have granulated surfaces with colors that coordinate with certainteed shingles providing the homeowner with a complete and coordinated solution for roof designs that transition from steep to low slope.
Then apply standard asphalt shingles over the membrane.
These self adhesive sheets have a special release film on the back for easy installation.
Most structural metal panel roof systems are designed to resist the passage of water at laps and other joints as sealant or anti capillary designs can be used in the seams.
Low slope metal roofs require less material which reduces the overall load on the building s structure.
We have a prairie style house in east tennessee mixed humid climate zone 4a built in the 1950s with a low slope roof pitch of 1 5 per 12.
It is important to note structural metal panel roof systems can be used for steep slope roof assemblies too.
For the smaller residential low slope roofing applications such as garage and porch transitions certainteed offers an excellent solution in our flintlastic sa self adhering sbs modified bitumen roofing system.