Flat roofs create long horizontal planes reminiscent of the broad horizon line seen often in nature.
Industrail flat roof structure.
During some periods in the history of architecture the roof imparts much of the architectural character.
This very popular roof type is also among the best flat roof materials to install.
For additional stability you can also use steel joists that are built into one or both of the walls.
These roofs are generally used on industrial or commercial buildings.
However they do have a slight pitch to allow for water run off and drainage.
A weather tight roof is basic in the preservation of a structure regardless of its age size or design.
As the name suggests flat roofs appear to be completely flat with no pitch.
Flat roof anything under 2 in 12 pitch.
Low slope roof anything from 2 in 12 to 4 in 12 pitch.
If you use rigid polystyrene insulation the blue kind or a foamed in place closed cell type no air space is necessary as it is waterproof.
However they can also be installed on residential houses in both high and low rainfall areas.
A flat roof s design is both efficient and economical.
This flat roof system is still used in some residential applications because of its affordability and fire resistance.
Modern architecture has traditionally been characterized by flat roofs.
This will give additional stability to the roof structure.
Flat roofs are nothing new nor are some of the proven materials that cover these often expansive roofs such as those found on factories warehouses big and small box stores apartment buildings large public structures and schools universities.
Your business s roof pitch is calculated by the number of inches the roof rises vertically for every 12 inches that the roof extends horizontally.
Metal is an extremely durable material and is immune to cracks that affect single ply roofs.
However metal roofs can be susceptible to leaks around the seams and roof edges.
Insulation and membrane position a vented air space is mandatory when using batt insulation in a flat roof.
However metal roofing has the longest lifespan lasting between 20 and 30 years.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
B uilt up roofing bur most often used in commercial and industrial applications this flat roof system contains layers of waterproof membrane such as a treated fiberglass basemat tar and gravel to seal the flat roof surface.
Flat roofs are a familiar sight throughout north america.
If your roof rises 8 inches for every 12 inches of horizontal run your roof has a 8 in 12 pitch.
Any typical mall warehouse apartment building or school usually features a flat roof.