If you know, you know, winters in Michigan are as tough as they come. With below-freezing temperatures, heavy snow, and constant freeze-thaw cycles, commercial roofs are put to the ultimate test this time of year.
Before the cold, wind, and snow set in, business and building owners have one critical job: making sure their roof can handle what’s coming.
How do you prepare your commercial roof for winter in Michigan?
Prepare your commercial roof for winter by scheduling a professional inspection, completing any needed repairs, clearing debris, ensuring your drainage system works properly, checking insulation, and setting up a snow-and-ice removal plan. These steps help prevent leaks, ice dams, and structural stress during Michigan’s harsh winter weather.
Preparing your building’s roof before winter sets in is one of the most effective ways to prevent leaks, structural issues, and emergency repairs.
Here’s your guide to preparing your roof for winter and protecting your investment.
Why Winter Preparation Matters for Commercial Roofs
The challenges of Michigan’s winter season are unavoidable, so it’s crucial to prepare your commercial roof in advance. Not all roofs are the same, but under heavy snowfall, high winds, ice formation, and rapid temperature swings, all roofs are susceptible to increased wear and tear and reduced efficiency, potentially revealing hidden problems.
Common Risks:
● Cracked or brittle roofing materials
● Ice dams at edges, valleys, or drainage points
● Stress on seams, fasteners, and flashing
● Moisture intrusion from melting snow
● Added weight due to heavy snow pack
Additionally, flat or low-sloped commercial roofs require a bit more attention, as they pose additional risks. Due to the roofs’ structural shape, they don’t shed snow naturally and experience significant stress from standing snow, ponding meltwater, and ice. These types of roofs must be monitored more frequently throughout the season.
Schedule A Professional Roof Inspection
A comprehensive inspection is the best first step toward winter readiness. Ideally, this should happen in late fall before temperatures drop too low for certain repairs or adhesives to cure properly.
Your roofing contractor will assess:
● Membrane, shingle, or metal panel condition
● Flashing integrity around vents, chimneys, and HVAC units
● Gutter, downspout, and drainage performance
● Loose fasteners or exposed nails
● Sealant deterioration
● Signs of rust, punctures, cracks, or uplift
For flat roofs, they will also check for:
● Ponding areas
● Drains and scuppers
● Surface blisters or low spots
Catching issues early prevents winter from turning minor defects into major repairs.
Handle Repairs Now
Cold weather makes roof repairs harder, more expensive, and sometimes impossible. That’s why addressing issues now is critical.
Common pre-winter repairs include:
● Replacing damaged shingles or roofing panels
● Resealing seams on membrane roofs
● Reinforcing or replacing failing flashing
● Securing loose fasteners
● Repairing punctures or cracks
● Correcting drainage issues
Even small vulnerabilities can allow water to enter and freeze, causing the problem to multiply. A few simple fixes today can save your roof from much bigger headaches in January or February.
Clean the Roof Surface and Remove Debris
Leaves, branches, dirt, and debris trap moisture, block drainage, and contribute to freeze-thaw damage. Before winter arrives, make sure the entire roof surface is clear.
Your cleanup should include:
● Removing organic debris from the roof
● Clearing gutters, scuppers, drains, and downspouts
● Removing obstructions around HVAC units and penetrations
● Checking that water flows freely off the roof
Flat roofs mainly rely on open drainage paths. Standing water that freezes repeatedly creates unnecessary strain and deterioration.
Inspect and Prepare the Drainage System
Whether your roof is flat or pitched, drainage plays a significant role in winter performance. Snowmelt must be removed from the roof efficiently to prevent ice buildup, leaks, and structural stress.
Inspect drainage systems for:
● Clogs or slow water flow
● Corroded or loose components
● Downspout obstructions
● Misaligned gutters
● Damage from previous storms
For flat roofs, ensure all internal drains are open and screened to prevent debris from entering the system.
Plan a Snow and Ice Management Strategy
Snow and ice removal should always be part of your winter preparation, especially for large commercial buildings.
Your plan should cover:
● When snow should be removed (based on depth or weight load)
● Who is responsible for performing the work
● Safe access points for maintenance crews
● What tools or methods should be avoided (such as metal shovels or harsh ice melt)
● Emergency procedures during heavy storms
Flat roofs are more susceptible to overloading, so they often require snow removal sooner than steep-sloped roofs.
Related Questions
What types of commercial roofs need winter preparation?
All commercial roofs, metal, shingle, membrane, built-up, and flat, require winter prep. Flat roofs need extra attention because they hold snow longer and rely heavily on proper drainage to prevent ponding and ice formation.
Can minor roofing issues wait until spring to be repaired?
Not in Michigan. Cracks, loose flashing, or minor punctures can quickly worsen when water seeps in and freezes. Fixing issues before winter saves significant time and money.
How often should commercial roofs be checked during winter?
After major storms or heavy snowfall, quick visual checks help catch drainage issues, ice buildup, or developing damage before they turn into larger problems.
Winter-Proof Your Building with Metro Detroit Roofing Experts
Michigan winters demand proactive roof care, regardless of the roofing system your commercial building uses. By preparing early, making necessary repairs, and creating a winter maintenance plan, you reduce the risk of leaks, ice buildup, structural stress, and unexpected downtime.
If you haven’t scheduled your pre-winter roof inspection yet, now is the ideal time to get started, before temperatures drop and the weather becomes unpredictable.
MacDermott Roofing provides expert commercial roofing services for all types of roof systems. For over 50 years, we’ve helped building owners keep their properties efficient, protected, and performing at their best. Call today!