Structural metal panel roof systems can be used for low slope roofs because of their hydrostatic or water barrier characteristics.
Low pitch metal roof options.
A minimum pitch of 3 in 12 or even 4 in 12 will normally be required.
Made of several layers of bitumen surfaces built up roofing is finished by applying an aggregate layer or coating as the top layer.
Suitable materials for pitched roofs pitched roofs begin with with slopes greater than 3 in 12.
Self adhesive flashing membrane under the shingles prevents leakage on low slope roofs.
Built up roofing is the most popular roofing material used on low sloped roofs.
What are low slope metal roofs.
For a low slope residential roof there are two main options.
Then apply standard asphalt shingles over the membrane.
This coating helps reduce the instances of rust increasing the life span of the roof.
Keep in mind that neither metal shingles not corrugated metal panels are suitable options for low slope or nearly flat roofs.
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.
Metal roofs aren t waterproof in and of themselves but they can be treated with a coating that makes them so.
Low slope metal roofs provide years of low cost low maintenance performance.
Their fasteners are either concealed or screwed at the top of a ridge which makes them less likely to leak.
1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many equivalent products.
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.
There is only one category of metal roof systems used in low slope applications structural metal panel.
Low pitch options there are considerably more materials that are available for low pitched roofs but careful planning and observation have to take place before plans can be executed.
It is important to note structural metal panel roof systems can be used for steep slope roof assemblies too.
These panels are best installed on the horizontal beams of the roof.
For commercial buildings one of the other popular low pitch roof options is coated metal.
This top layer normally is tar over which the gravel is laid.
Homeowners are recommended to install supporting seam panes to help firmly fasten the panels.