Pros and Cons of Constructed Roofs vs. EDPM Rubber Membrane Roofs
There are several types of flat roof systems to choose from for your home or building. Many options are suitable for new construction homes and roof replacement needs, making it more difficult for you to decide which style is best for your property. Two of the most common options on the flat roof market are Built Roof Systems (BUR) Y EDPM Rubber Membrane Roof Systems. Read on to learn more about both systems by comparing the pros and cons of each.
Constructed ceilings (BUR)
Constructed Roofs (BUR) are a common choice for flat roof systems. These systems are built in layers, starting with several sheets of impermeable layers, followed by a layer of hot tar and gravel (hot bitumen or asphalt-based), and then weighted down by a layer of smooth river rock. These top layers function as an effective reflective coating for greater energy efficiency, while the hot asphalt mix provides durability and functions as a fire retardant.
Although traditionally made from hot tar and gravel or tar paper, industry innovations continue to increase and more advanced materials are being used for BURs, such as fiberglass membranes. The total cost of purchasing and installing BUR varies from customer to customer, as it depends on a wide variety of factors. Some of the most influential factors include the total surface area and the quality of the material. On average, BUR systems generally cost between $ 5 and $ 7 per installed square foot.
PROS:
Economical compared to alternative flat roof options
Visually attractive for windows and balconies facing a roof
Reflective coating improves energy efficiency and reduces heat gain
CONS:
Requires more frequent routine maintenance compared to alternative systems
Materials are heavy and increase installation time
It can be a tedious installation; Improper installation can clog gutters
EDPM Rubber Membrane Roofing
EDPM rubber membrane roofs (“EPDM” stands for “Ethylene Propylene Diene Monomer”) are another common flat roof option that works great for large, flat roofs. This material is a true flexible rubber that can be installed in various ways. More traditional installation methods include using fasteners to mechanically anchor it, ballast it with stone, or use adhesive. They come in wide rolls that must be unwound with the utmost precision and care to avoid air bubbles and other structural defects.
EDPM roofing systems provide a wide range of benefits, including increased durability, UV resistance, and much more. Homeowners also admire the ease of installation and fewer routine maintenance needs, as well as its resistance to natural wear and tear such as scuffs and scratches. In terms of cost, the total amount will vary based on the unique factors and circumstances of your property. On average, you can expect EDPM rubber roofing to cost between $ 4.00 and $ 7.00 per installed square foot.
PROS:
Low maintenance and easy water leak repair
Resistant to water leaks and surface imperfections such as scratches and tears
Can last up to 20 years or more with good care
Provides a clean and uniform appearance
CONS:
Absorbs a large amount of heat, making a reflective top layer necessary
Reflective white top coat is an additional cost to purchase and install
Excess heat absorption can increase energy costs by 30% or more