As the Midwest transitions from crisp fall days to freezing nights, your roof quietly takes on a bigger workload. Snow, ice, and rapid temperature swings can turn small maintenance issues into costly problems almost overnight.
At Jewett Roofing, we see it every year—buildings that make it through the heat of summer without issue suddenly develop leaks, ponding, or drainage failures once winter arrives. The good news? A little preventive care now can make all the difference.
Here’s our essential winter maintenance checklist to help you prepare your commercial roof before the first snow hits.
1. Schedule a Professional Roof Inspection
Before temperatures drop below freezing, have your roof inspected by a qualified commercial roofing team. A thorough inspection identifies small issues—like loose seams, cracked flashing, or clogged drains—before they become emergencies in the middle of winter.
Our inspections at Jewett Roofing focus on:
Membrane condition and seam integrity
Flashings and terminations around HVAC units, skylights, and vents
Roof deck and insulation signs of movement or moisture
Drainage systems, scuppers, and gutter flow
Finding problems early means they can be repaired while weather still allows safe, effective work.
2. Clear Debris and Clean Drains
Leaves, twigs, and debris are more than a nuisance—they can block water flow and lead to ponding or ice buildup once temperatures drop. Flat and low-slope roofs rely on free-flowing drains and scuppers to shed water efficiently.
Before winter:
Clear gutters and downspouts completely.
Check for debris around rooftop units or behind parapet walls.
Make sure strainers and drain domes are secure and unobstructed.
Proper drainage now prevents freeze-thaw damage later.
3. Inspect for Ponding or Sagging Areas
Even small dips in a roof surface can collect water. Once frozen, that water expands and can tear membranes, compromise seams, or add unnecessary weight.
Look for:
Persistent puddles or stained areas after rain
Sagging insulation or roof deck movement
Early signs of water infiltration inside the building
If ponding is detected, it’s best to have it evaluated by a professional roofer before snow accumulation adds further stress.
4. Check Flashings, Seals, and Penetrations
Flashing and sealants around HVAC units, skylights, vents, and parapet walls are common weak points when temperatures fluctuate. As materials expand and contract, gaps can form—creating direct paths for moisture.
During your pre-winter check:
Examine all flashing details for cracks or separation.
Confirm caulking or sealants remain flexible and intact.
Ensure penetrations are properly terminated and watertight.
This step alone can prevent many of the leaks that show up after the first hard freeze.
5. Review Your Snow and Ice Removal Plan
If your building is in a region that sees heavy snowfall, make sure you have a plan in place for safe and effective removal.
Important considerations include:
Who is responsible: Identify a trained contractor or team—not untrained staff—to handle removal safely.
Access points: Make sure there’s safe ladder or roof access and clear walkways.
Equipment: Avoid sharp shovels or mechanical tools that can damage membranes. Use plastic-edge tools and non-abrasive methods instead.
Regular monitoring during winter helps prevent overloading and potential structural strain.
6. Consider Energy Efficiency and Preventive Upgrades
A winter-ready roof isn’t just about protection—it’s also about performance. If your facility struggles with heat loss or snow melt patterns, an energy audit or upgrade may be worthwhile.
Consider:
Improving insulation beneath the roof deck
Installing a reflective or insulated membrane like Duro-Last
Checking for air leaks that contribute to ice dam formation
Proactive improvements can lower energy costs and extend the life of your roof system.
Partner with Jewett Roofing Before the Freeze
The most reliable roofs are the ones that get attention before winter begins. Jewett Roofing’s maintenance programs are designed to help property owners stay ahead of the weather—offering detailed inspections, documented reports, and prompt repairs when needed.
From Duro-Last installations to seasonal maintenance, our team helps commercial and industrial buildings across Missouri and Illinois stay dry, safe, and efficient year-round.
Winter weather can be unpredictable, but your roof’s performance doesn’t have to be. A few preventive steps today can save thousands in emergency repairs and downtime later.
Before the first snow flies, schedule your winter maintenance inspection with Jewett Roofing—and rest easy knowing your roof is ready for whatever the season brings.
