How to Prepare for and Handle Roof Damage Caused by Extreme Weather

A building's roof is constantly at the mercy of the elements, from the scorching sun to strong winds to heavy rain, hail or snow. When it comes to commercial roofing in particular, annual and relentless weather events can leave building owners with significant roof damage and even cause leaks that can impact a business, as well as employees and customers.

Pre-Storm Prep

When an extreme storm is on the way, commercial contractors need to be ready. Before a big storm hits, make sure you've established relationships within your local community so that your company is the first one they think of if, and when, they need roof repairs.

Extreme weather events don't care whether a commercial roof is finished or if a roofing project is still underway, so it's important to have the right safety equipment ordered and in place before a storm hits. Items like highly visible personal protective equipment (PPE), weatherproof boots and slip-resistant gloves will ensure that a crew will be safe and prepared to resume work when possible.

In addition, make sure each member of a crew is trained in the latest safety protocols, as well as all the scheduling and communications technology the company uses to manage jobs. Finally, a reliable weather forecasting app that provides free, customized and real-time storm reports can be a roofing contractor's best friend. Not only can it alert a contractor to a major weather event, but it can also be useful in scheduling jobs and crews.

Protecting a Finished Roof

When it comes to protecting a finished roof from storm damage, proactive preparation is key. That means regular inspections to clear any debris, maintain drainage systems, and catch and address any minor problems before they become big ones. Commercial roofing contractors should regularly remind their clients about the importance of routine inspections and even offer free inspections before the storm season begins.

As for when an actual storm is approaching, building owners can minimize potential damages by trimming any nearby trees and securing any items on a rooftop that could become projectiles, such as HVAC systems, solar panels, pipes or air filtration systems.

Protecting a Project That Isn't Complete

If a team is in the middle of a commercial roofing project and a fast-moving storm arises, crews should secure the jobsite, including removing or tying down any equipment and construction materials, and evacuate the jobsite before the weather event rolls in.

Using tarps or plastic sheeting to cover any unfinished or open job portions will help minimize the risk of water damage, as well as keep any debris from flying off the roof. Don't forget to secure any open garbage containers or dumpsters with nets and anchors to keep debris from flying out.

Materials That Withstand Storms

While every commercial roof is subject to roof damage from high winds and heavy rains, some specific materials can be especially beneficial in areas where extreme storms like hurricanes are common.

TPO and EPDM roofing are both single-ply membrane roofing systems that are particularly durable and resistant to both extreme temperatures and extreme storms. They're also lightweight, flexible and easy to install. TPO is a popular choice for flat commercial roofs and can last 10 to 15 years when properly installed.

Built-up roofing (BUR) systems are another popular choice for commercial buildings. Made of alternating layers of bitumen layers (asphalt or coal tar) and reinforcing fabrics, such as fiberglass or organic felts, BUR systems are known for their strength and how long they last. Some BUR systems can last 30 years or more.

After the Storm

There are a few things commercial contractors should do after a storm or major weather event has passed. The priority for a contractor working on a commercial roof should be to help with cleanup and provide the temporary fixes necessary — such as tarps and extra plywood — to prevent further roof storm damage to the building from any subsequent bad weather.

Contractors should thoroughly inspect the roof to identify any building vulnerabilities or potential problems. Take photos or provide aerial drone footage to show the building owner any potential damage.

With photos and footage in hand, talk to the building owner to establish a plan of repair and to go over the existing roof warranty and any insurance payout options. This is where having an insurance specialist on staff can help the process move quickly and smoothly while building a stronger contractor-client relationship.

Mitigating Damage to a Roof

When it comes to protecting a commercial roof, the best defense is a good offense. Proper maintenance, professional installation and quality products all contribute to mitigating roof damage when harsh weather hits, whether it's a finished commercial roof or a roofing project in progress.

Developing a strategy, having the right supplies and equipment on hand, and maintaining communication with a building owner before and after a major weather event can help everyone prepare for any storm and avoid unexpected and costly roof damage.