Short answer: A commercial roof should enter winter with working drainage, known defects addressed and a plan for responding to leaks or concerning snow accumulation. Have qualified professionals inspect the roof system and review its condition, access and maintenance needs before freezing weather limits the work.
What should be checked before cold weather?
- Drains, scuppers and downspouts: look for blockages, loose components and drainage history.
- Membrane seams and surface condition: investigate splits, punctures, deterioration and previous repairs.
- Flashings and penetrations: inspect around walls, curbs, pipes and rooftop equipment.
- Interior records: map recurring stains or leaks to the areas above.
- Roof access and equipment: plan safe access and coordinate with building operations.
These checks belong in a qualified inspection. A roof can contain concealed moisture or damage that is not obvious to someone making a casual walk-through.
How do you plan for snow and ice?
Assign responsibility before a storm: who checks conditions, who receives leak reports and who decides when a qualified assessment is needed? Keep contact information accessible and record previous trouble spots.
Snow loading depends on depth, density, drifting, roof geometry and building capacity. Do not rely on a single universal snow-depth rule. New deformation, unusual structural sounds or other distress requires keeping people clear and seeking urgent assistance.
When might a coating be considered?
A coating may be appropriate for some existing roofs, but suitability depends on the substrate, moisture, damage and chosen system. It is not a shortcut around wet insulation, incompatible materials or unresolved drainage problems.
Ask for the product requirements, preparation, weather conditions and curing plan in writing. If conditions are outside the product’s limits, delaying that work or choosing another appropriate approach may be necessary.
What records help your roofing contractor?
Bring the roof’s known age, drawings if available, maintenance history, previous repair scopes and dated leak photographs. List changes to rooftop equipment or building use that may affect the roof.
A useful report should explain what was observed, which areas were accessible, the recommended priority of repairs and what will remain under monitoring. That gives the facility team a plan it can use during a busy winter.
A homeowner example
Illustrative scenario, not a customer case study.
Imagine a small commercial building where staff report water only when snow melts near a rooftop unit. Instead of treating each report as a separate ceiling problem, the facility manager collects the dates and locations and shares the pattern with a roofer. The example shows how a simple log can make an assessment more focused.
Frequently asked questions
Should maintenance staff clear roof snow themselves?
Do not assume the task is routine maintenance. Roof access, fall hazards, concealed openings and the removal method need qualified planning.
Does every aging membrane qualify for a coating?
No. Condition, moisture, compatibility and the proposed coating system must be assessed first.
Is this checklist for residential shingles?
This guide focuses on commercial roofs and facility planning. Use the linked homeowner checklist for residential winter observations.
Set a practical winter plan for your building
Ask Greenawalt Roofing about an assessment for your commercial roof and the repairs or maintenance that need priority. Request a free estimate.
