Most Common Roofing Options for Flat Roofs
A roofing project may seem easy, but it can actually become overwhelming. There is a wide array of options for roofing systems and here is where people get confused when choosing what is best for them. According to the roof type, the roofing system is then decided. There are two major types of roofs widely used by contractors – flat roofs and sloped roofs. You have to decide which material would be best for your roof type. Here, we will discuss the options available for flat roofs. You should always consult a roofing contractor to install or repair your flat roof, however, read this blog to get a clear basic idea about the concept.
Spray Polyurethane Foam Roofing
This is an environmentally-friendly option for large commercial, manufacturing and industrial buildings. The liquid is sprayed, then expands as a foam to create a solid roofing material. It can last up to 50 years and can withstand any harsh weather if installed properly. It can cost $4.00 to $7.00 a sq-ft, though the cost of repairing a flat roof may vary depending on the contractor.
This is a time-tested roofing option, which is made with sheets of synthetic rubber. The material is fixed to the insulation using fasteners or adhesives and creates a water and air-tight layer.
You can choose from polyisocyanurate, expanded polystyrene or extruded polystyrene to create the single-ply membrane roofing. Popular for commercial purposes, it costs between $3.50 to $7.50 a sq-ft for EPDM or TPO costs between $3.50 and $6.50.
Metal roofing is among the oldest options on the market. Most metal roofs are made of corrugated galvanized steel and other materials including tin and aluminum. This is a light material and can be installed on top of the existing roof. After installation, a coating of water resistance, UV protection and rust protection are placed.
It costs around $5.00 to $10.00 per square foot. It can vary depending on the style, type and metal panels you pick.
For over 100 years, built-up roofing systems have been used on United States buildings. This roof option requires directly placing layers of supporting fabrics, tar or asphalt onto the rooftop. How many layers are ultimately installed are up to you. The top layer is often made of gravel.
The cost may vary around $5.50 to $8.50 per square foot.
Visit us at Preferred Roofing, not just for expert installation of new roofs, but also repairs on any type of flat roof without any hassle. Visit us for a consultation to choose the right options for your building purposes.