How Snow and Ice Impact Different Types of Roofing Materials
Summit Roofing
Winter storms might be rare here in Wilmington, NC, but when snow or freezing rain does hit, it can affect your roof in surprising ways. Some roofing materials are better equipped to handle ice and snow, while others might need extra care to prevent damage.
Here’s a closer look at how different types of roofing materials react to winter weather—and what you can do to protect them.
Asphalt Shingles
Common in Wilmington
Asphalt shingles are one of the most popular roofing materials in Wilmington because they’re affordable and relatively easy to install. They hold up well under most conditions, but snow and ice can bring unique challenges.
Impact of Snow/Ice
When ice gets beneath the shingles—whether from a small crack or improper sealing—it can lead to water damage once the ice melts. Over time, heavy snow and ice accumulation can weaken the shingles, causing them to lose their protective coating and reducing their lifespan.
Preventive Tips
We recommend regular roof inspections, especially after storms or unusually cold weather. Keep an eye out for any cracked or loose shingles, as these can let ice slip underneath and cause issues later on. And if you’re unsure, give us a call—we’re here to help ensure your shingles are properly sealed and ready for the season.
Metal Roofing
Durability Under Snow/Ice
Metal roofs are a fantastic choice for withstanding snow and ice. Snow doesn’t easily accumulate on metal roofs because of their slick surface, meaning snow slides off more readily and reduces the risk of heavy snow loads. Ice also tends to slide off, helping prevent ice dams from forming.
Potential Issues
While the smooth surface of metal roofing helps prevent snow buildup, sliding ice can be a risk for gutters, landscaping, and anything directly below.
When snow and ice do slide off, they can come down with surprising force, potentially damaging anything in their path.
Maintenance Advice
To manage this, we suggest installing snow guards. These small devices are attached to the roof and help control the flow of snow and ice, so it comes off gradually instead of all at once.
Metal roofs are a great, durable option for coastal environments like Wilmington, especially when equipped with these added features.
Clay or Tile Roofing
How It Handles Snow/Ice
While clay and tile roofs bring an attractive, Mediterranean style, they’re typically better suited for warmer climates. In rare freezing weather, snow and ice can lead to problems if the tiles absorb moisture. When water seeps into the tiles and then freezes, it can cause cracks that lead to bigger issues over time.
Local Relevance
In Wilmington, sudden cold snaps and freezing rain can expose clay and tile roofs to unexpected stress. Even one winter storm with freezing temperatures can leave lasting damage if the tiles aren’t maintained.
Preventive Care
Regular maintenance is essential. We recommend sealing your tiles to keep moisture out and inspecting them periodically for any cracks. If you spot any broken or cracked tiles, replacing them right away can help prevent further damage.
Clay and tile roofs add a lot of character but do need a bit more TLC in coastal areas that can experience sudden weather shifts.
Slate Roofing
High Durability but Heavy
Slate is one of the most durable roofing materials available, and it can support the weight of snow.
But slate itself is a heavy material, so the roof structure underneath must be strong enough to support both the slate and any snow that might accumulate during an unexpected winter storm.
Ice-Related Concerns
While slate is tough, it’s not immune to ice dams, especially if there’s inadequate ventilation. When warm air from inside the home rises to the roof, it can cause snow on the roof to melt, which then refreezes at the eaves. This ice damming can trap melting snow and lead to water leaks.
Maintenance Tips
To protect your slate roof, we recommend regular inspections of the flashing and underlayment, which help to keep water from seeping under the slate. Proper attic ventilation is also essential to prevent warm air from causing freeze-thaw cycles on the roof.
Slate roofs are a durable choice, but with the right ventilation, you’ll keep them in top shape even through occasional winter weather.
Wood Shingles/Shakes
Charming but Vulnerable
Wood shingles and shakes add a natural, rustic appeal to any home, but they’re more prone to moisture damage than other materials. When snow or freezing rain hits, water can seep into the wood. If that water refreezes, it can warp or split the wood, reducing the lifespan of the shingles.
Coastal Climate Concerns
Wilmington’s coastal moisture, combined with occasional freezing temperatures, can cause wood shingles to age more quickly than they would in a drier environment. Humidity alone can lead to rot, and winter weather only amplifies this risk.
Protection Tips
Applying a waterproof coating to your wood shingles or shakes can make a huge difference in their durability. Proper ventilation is also essential, as it reduces moisture buildup, helping to prevent rot and warping. Wood shingles require more maintenance, but their unique look can be worth the extra effort for homeowners who love that rustic charm.
Flat Roofing
Snow Accumulation Risk
Flat roofs, often used for commercial buildings, don’t have the natural shedding slope that other roofing styles do. This means that snow can easily accumulate, leading to excess weight on the roof and potentially creating standing water when the snow begins to melt.
Ice Concerns
Ice tends to build up around drains on flat roofs, especially in freezing rain. If these drains are blocked, water has nowhere to go, which can lead to pooling, leaks, and even structural damage over time.
Maintenance Advice
We suggest routine snow removal on flat roofs to keep snow loads manageable and avoid potential damage. Regularly check that drains are clear of debris, so that melted snow and rainwater can drain properly.
For Wilmington business owners, investing in flat roof maintenance before and after winter storms can help you avoid costly repairs down the line.
What Homeowners Can Do to Prevent Winter Roof Damage
No matter what kind of roof you have, there are steps you can take to minimize the impact of snow and ice:
- Regular Inspections: Before and after winter storms, check your roof for any signs of damage, loose shingles, or buildup. Early detection can help prevent bigger problems.
- Gutter Cleaning: Clear gutters and downspouts of any debris before winter hits. Blocked gutters can lead to ice dams, which can cause water to back up and damage your roof.
- Ensure Proper Insulation and Ventilation: A well-insulated and ventilated attic helps keep your roof temperature consistent, reducing the risk of ice dams.
- Call in the Professionals: If you spot damaged shingles, cracked tiles, or any signs of leaks, don’t wait to call for help. Getting a professional inspection and repair now can save you from costly issues in the future.
Prevent Snow and Ice with Summit Roofing
Winter weather might not be top of mind for Wilmington homeowners, but even a little snow or ice can impact your roof if it’s not prepared.
Each roofing material reacts differently to cold and moisture, so knowing how your roof handles winter weather can save you from headaches and costly repairs.
If you’re unsure how well your roof will handle the next winter storm or if you’d like an expert opinion on preparing for colder months, Summit Roofing in Wilmington, NC, is here to help.
Contact us today for inspections, repairs, or advice on choosing the right roofing material for your home. Whether it’s a small fix or a brand-new roof, we’ve got your back.
