Protecting the roof from storms

3 minutes to read

Did you know that strong winds can blow the roof off your house? Low-energy areas are more likely to experience hurricanes and tornadoes, but property damage from hurricanes can occur in any area, although it is rare. These seasons can bring strong winds and rain that can damage your roof, disrupt your business, and affect your bottom line.

We have developed the best ways to protect your home from hurricane damage.

Design and construction of the roof

It’s important to choose the right roof design and construction that works for your projects to be stable, stable, and resistant to damage in hurricane conditions.

The slope of the roof refers to the slope and side of the roof. Commercial buildings often have flat, pitched, or sloped roofs, residential and office buildings typically have flat roofs, and residential buildings are often seen with sloped roofs.

Here are some roofing options:

  • Build-Up Roofing (BUR) membrane:
    These are made of layers of asphalt roofing and bitumen that are laid so that several plies are joined together to form a membrane.
  • Metal roofing:
    A metal roof is a metal roof made of metal pieces or tiles. Metal roofing is a popular type of commercial roofing because of the variety of metal materials available.
  • Modified bitumen (MB) roofing.:
    MB is made of bitumen and is designed for buildings with flat or low pitched roofs. They are made of resin combined with polymer-based rubber or plastic, then reinforced with fiberglass to create a strong but flexible waterproof membrane.
  • Thermoset roof membrane:
    Thermoset roofing membrane is a very durable rubber material that is widely used in low-rise buildings.
  • A green roof:
    A green roof may be the most versatile type of commercial roof available. Green roofs are plants grown on top of a waterproofing system that is placed on top of a flat or slightly sloping roof.

How do hurricanes blow roofs off?

When high winds pass through your roof, it creates a very low humidity. The pressure around your roof is lower than the atmospheric pressure below it. Likewise, when air waves enter your home through an open window or door, they create pressure inside that causes the air to rise. This drag causes the canopy to rise and blow away in the wind. The compressed air inside your home is combined with the strong force of the wind that pulls it outside to lift your roof. This is known as Bernoulli’s principle.

Ways to prevent roof damage

  1. Make sure the roof is installed according to code.
    This is especially important with older roofs because the previous owner may not have hired a reliable, licensed contractor.
  2. Seal your roof.
    Make sure the edges of the roof are sealed with roofing cement to prevent strong winds from penetrating the floor. Also, make sure that the decking is also sealed.
  3. Install windbreaks.
    When installing a new roof, make sure the sheathing is airtight. Roof insulation is a second form of protection against hurricanes.
  4. Store your roof coverings.
    Inspect the roof regularly for cracks, wear, curls, or missing roofs, as well as signs of water damage under the roof. This will help reduce the risk of your roof cracking due to component damage. Replace the roof as it approaches the lifespan of its roofing material.
  5. Keep the support frame for your roof.
    Inspect the structure regularly for frayed, frayed, or rotting cables and roofing. Also always check the support frame.
  6. Add the roof pieces / hurricane.
    Roof trusses/hurricanes are metal brackets that attach your roof to the roof of your home to protect the roof from blowing off in severe weather. There are different strengths of protection for these units, so choose your strength based on the severity of the wind in your area. The local wind risk can be calculated using Government of Canada Wind Load Calculator for a sharp roof and assembly on a leafy roof.
  7. Build your roof down.
    For small commercial buildings, if a hurricane is predicted to hit your building, keep your roof strong by holding your roof down with a string system. Cables are attached at the ends of your building to the concrete blocks on the floor.

What to do after a tornado or hurricane

After a storm, it can be difficult to assess the severity of your roof damage, especially if you’re just looking down. Look and write as much as you can from a distance. Your roof may have small, loose shingles, asphalt surfaces, and closed shingles or other roofing materials. Falling objects or debris from trees that have fallen on power lines can also damage your roof.

Hire a licensed and professional roofer to inspect your roof, preferably from an elevated position. If possible, remove debris from your roof and yard. Inspect the interior of your home for leaks, wall deformation, and other damage.

Make sure you are protected

Despite your best efforts, sometimes things can still happen. That’s why having the right insurance can be helpful. To learn more about how a comprehensive policy can help protect you, your employees, and your policy, visit our Commercial Property Insurance page.


These blogs are provided for informational purposes only and are not a substitute for professional advice. We make no representations or warranties as to the accuracy or completeness of the information and shall not be liable for any loss arising from reliance on the information. Terms, conditions and discounts apply to the publication. See the schedule for more information.