When considering exterior maintenance and care that will not only help improve curb appeal but protect a commercial building long run, roof maintenance and care should be high on the list. 

Unfortunately, it’s often overlooked. And many property managers are unable to clean their roofs due to a variety of factors.

Roofing professionals understand the importance of simple cleaning to reduce damaging substances such as dirt, pollutants, and organic debris. Although metal roofs are well-known for being easy to maintain, very long-lasting, and durable due to unique finishes, the Metal Roofing Alliance (MRA) recommends regular roof cleaning to ensure maximum performance. 

Follow these easy tips to clean a metal roof and keep it looking like new while keeping yourself and the building owner safe and happy.

  1. Think safety first. Safety is always the most crucial step for any roof maintenance, no matter what the material. If walking on the roof is needed, follow the appropriate safety protocol. Be especially careful in the rain, wind, ice, and snow.
  2. Prep the roof. Empty all gutters and downspouts, and remove any large rooftop debris such as branches. Repair any gutter issues and trim vegetation away from the roof. Talk this over with the building’s owner before you begin in case they have concerns about how much their plants/trees are cut.
  3. Use the right cleaning solution. If water alone isn’t enough to remove ordinary dirt and grime, mix 1/4 cup detergent (such as laundry detergents, car wash soap, or mild dish soap) per gallon of water. Do not overuse cleaning agents. Review the manufacturer’s instructions to help protect and maintain roof warranties.
  4. But go deeper if needed. If mold or mildew is severe, use a mixture with bleach or trisodium phosphate. Be sure to wear safety gear such as goggles, masks and gloves when working with TSP.
  5. Be gentle. Apply the solution to the roof using a washcloth, sponge, a soft bristle brush, or a non-abrasive pad. Try to use the lightest touch that will effectively do the job. Never use steel wool, wire brushes, high-pressure power washers, scouring powders, paint removers, or thinners on a metal roof.
  6. Wait for it. Let the solution stand for five to ten minutes before thoroughly rinsing the surface with plain water.

It’s essential to pay attention to proper maintenance methods and avoid mistakes that could cause damage. To clean a metal roof, follow guidance from leading MRA members and always be sure to double-check the metal roofing manufacturer’s specific recommendations.

Metal roofs are one of the easiest types of roofing to clean and care for, making them a great choice for building owners.  Help your customers give them a little care, and a metal roof will stay beautiful and useful for many decades.