What Is The Most Common Type of Commercial Roof?

If the roof of your office building is leaking, then you need to start considering repairs for commercial roofs. Repairing your roof can include changing your old roof and replacing it with more durable and reliable material. There are several new roofing systems available today. Given below are some of the most common commercial roofing systems:

Metal Roof

Metal roof is one of the most common types of commercial roofs because of the variety of metal materials available. Some of these materials also come with integrated solar systems or snow removal systems. Common metal commercial roofing materials include:

  • Aluminum, tin, and zinc
  • Corrugated galvanized steel
  • Copper
  • Tile sheets
  • Coated or stainless steel
  • Lead

Metal roofs last for 40-60 years and are cost-effective. They look attractive, are sustainable, and have strong fire resistance. However, the metal can be susceptible to corrosion. Your roof will require protective surface layers to control the damage from sunlight exposure, pollution, moisture, and other elements.

Built-Up Roofing Membrane

Built-Up Roofs, commonly known as “BUR,” are the standard gravel and tar roof. They are built with several layers. The number of layers may vary depending on your budget and the durability you require. BUR has a lifespan of more than 20 years. They are easy to repair and are some of the oldest and most flexible commercial roofing options. Built-Up Roofing is ideal for areas that have large foot traffic. However, the strength of the roof will depend on its stable understructure. The roof is UV-resistant and can be coated to reflect heat. The only disadvantage of a BUR is that it can get difficult to identify a leak in the roof as it ages.

Spray-On Roofing

Spray-On Roofing is made using Spray Polyurethane Foam or SPF. This foam starts as a liquid and instantly expands into a foam, hardening into a solid layer when sprayed. Spray-On roofing is eco-friendly and is commonly applied on an existing roof. The spray foam adds a layer of insulation and waterproofs the roof. It can be used in any weather conditions and can last up to 50 years if installed and maintained well. The disadvantage of spray-on roofing is that its installation window depends on favorable weather conditions. The roof also needs to be inspected once or twice a year for any damage.

Green Roof

Green roofs are extremely versatile. They can last between 30 and 50 years. They have a tough waterproof membrane that is covered by green plants completely. These roofs help improve air quality and also provide a green space for people to relax. The primary advantage of green roofs is their sustainability. They also protect your roof from the elements and improve the aesthetic appeal of your building. The only disadvantage of green roofs is that they need to be monitored regularly and require constant maintenance.

Thermoset EPDM Membrane

The EPDM (Ethylene Propylene Diene Terpolymer) is a roll-based, synthetic rubber roofing membrane. It is also called thermoset roofing. The thermoset roofing system provides strong resistance to pollution and harsh sunlight. It is easy to install, lasts long, and is versatile. It typically comes in white and black rolls and is known for its durability. The disadvantage of this roofing system, however, is that it is not aesthetically appealing and can easily get damaged by falling debris or by many people walking on it.

Thermoplastic PVC and TPO Roof Membranes

TPO or thermoplastic polyolefin and PVC or Poly Vinyl Chloride are resistant to adverse conditions like UV light, oils and fats, and bacterial growth. Commercial roofs made from these membranes are heat reflective and lightweight. They don’t get damaged easily. They also have strong air-welded seams, can tolerate harsh winds and high temperatures, and are fire-resistant. But, you can often get sold cheap and poorly made products. Because of TPO’s popularity, many small-scale manufacturers have tried to create low-quality products. You must ensure you are working with reliable roofing contractors like Ram Roofing and Solar. They offer commercial roof repair and replacement and will provide you with high-quality service.

Modified Bitumen Roofing

Modified Bitumen roofs are installed in layers, similar to BUR membranes. The reinforced roof fabrics act as carriers for the bitumen. These roofs are usually fastened as two-ply systems. They are attached to the roofing deck for high protection and stability. These types of roofs are ideal for buildings that expect high activity on the roof. They offer great tensile strength and require annual maintenance.

Christopher Stern

Christopher Stern is a Washington-based reporter. Chris spent many years covering tech policy as a business reporter for renowned publications. He has extensive experience covering Congress, the Federal Communications Commission, and the Federal Trade Commissions. He is a graduate of Middlebury College. Email:[email protected]

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