Why Minnesota Weather Makes This Decision So Important
If you manage a commercial building or multifamily property in the Twin Cities, you already know what Minnesota weather does to a roof. One hail storm in June. A polar vortex in January. Ice dams forming along every eave by February. By the time spring arrives, your exterior has taken a beating that most property owners in warmer states never deal with.
Choosing the wrong roofing contractor does not just mean a bad repair. It means missed damage, failed inspections, denied insurance claims, and tenants calling about leaks. The stakes are real.
This guide is written specifically for commercial property managers and multifamily building owners in the Minneapolis-St. Paul metro. We will walk you through what to look for, what to avoid, and how modern inspection technology is changing what a good contractor can actually deliver.
What Commercial Exterior Damage Really Costs
A small roof leak on a 20-unit apartment building is not a small problem. Water intrusion damages insulation, drywall, flooring, and electrical systems. Mold follows within 24 to 48 hours in the right conditions. One ignored repair can turn into a five-figure remediation job.
According to the National Roofing Contractors Association, commercial roof failures cost U.S. building owners over $3 billion annually in preventable damage. Most of that damage starts small and gets missed during routine visual inspections.
For multifamily properties, the cost is not just structural. Tenant turnover increases when units are damp, cold, or showing visible water damage. That vacancy cost adds up fast.
Minnesota's Climate Problem: The Numbers Behind the Damage
Minnesota is one of the most demanding climates in North America for building exteriors. Here is what your roof and siding are dealing with every year:
40 to 60 freeze-thaw cycles per year in the Twin Cities. Every time moisture in roofing materials freezes and expands, then thaws and contracts, it weakens seams, flashing, and membrane adhesion.
Temperature swings of 100+ degrees Fahrenheit between summer highs (above 95°F) and winter lows (below -30°F with wind chill). Few building materials handle that range without degradation over time.
Average annual snowfall in Minneapolis: 54 inches. Snow load stress on flat commercial roofs is a real structural concern, especially on older buildings.
20 to 30 hail days per year, with the Twin Cities sitting in a corridor that sees significant storm activity from May through September.
Ice dams are a particular problem for multifamily buildings. When heat escapes through a poorly insulated roof, it melts snow near the ridge. That water runs down and refreezes at the cold eaves, backing up under shingles and into the building envelope. A single ice dam season can cause thousands of dollars in interior damage.
Any roofing contractor you hire in Minneapolis-St. Paul needs to understand these conditions specifically — not just general roofing principles.
How AI and Drones Change the Inspection Game
Traditional roof inspections involve a person walking the roof with a clipboard. That works for obvious damage. It misses a lot.
Our team at Hoyt Exteriors uses AI-powered drone inspections and thermal imaging to give commercial and multifamily property owners a complete picture of what is actually happening on their roofs and building envelopes.
What Drone Inspections Catch That Visual Inspections Miss
Drones capture high-resolution imagery of every square foot of a roof surface, including areas that are difficult or unsafe to access on foot. Combined with AI analysis, we can identify granule loss patterns, membrane lifting, flashing gaps, and ponding water zones with a level of detail that a standard walkthrough cannot match.
Why Thermal Imaging Matters for Minnesota Buildings
Thermal imaging detects heat loss and moisture intrusion beneath the surface. In Minnesota's climate, this is especially valuable. A roof can look intact from above while hiding wet insulation underneath, which dramatically reduces R-value and drives up heating costs. Thermal imaging shows us exactly where moisture has entered the building envelope, so repairs target the actual problem — not just the visible symptom.
For commercial property managers dealing with energy costs and tenant comfort complaints, this kind of data is directly useful. You get a report you can act on, not just a verbal assessment.
What to Expect from a Commercial Exterior Project with Hoyt Exteriors
We are a two-generation family business based in the Minneapolis-St. Paul suburbs. We work on commercial buildings, multifamily properties, and residential homes. Our services cover roofing, siding, decks, windows, gutters, and insulation.
Multifamily Exterior Restoration
Multifamily buildings present specific challenges. You are coordinating work around occupied units, managing HOA or ownership group expectations, and often dealing with deferred maintenance across multiple systems at once.
Our team approaches multifamily projects with a phased plan that minimizes disruption to tenants. We document existing conditions before work begins, which protects you in insurance and warranty discussions. We also coordinate directly with insurance adjusters when storm damage is involved, which saves property managers significant time.
The Project Process
- Drone and thermal inspection to document existing conditions
- Written scope of work with itemized pricing before anything starts
- Scheduling that works around your tenants and operations
- Material selection guidance based on your building type, budget, and Minnesota climate performance data
- Post-project documentation for your records and insurance file
We do not subcontract our core work. The crew that shows up is our crew.
Key Things to Look for When Hiring a Roofing Contractor
Whether you are hiring us or evaluating other contractors, here is what matters:
Minnesota Licensing and Insurance
Minnesota requires roofing contractors to be licensed through the Department of Labor and Industry. Ask for the license number and verify it. Also confirm they carry general liability insurance and workers' compensation. If a worker is injured on your property and the contractor lacks workers' comp, you may be liable.
Local Experience with Commercial and Multifamily Work
General roofing experience is not the same as commercial roofing experience. Flat roofs, TPO membranes, EPDM systems, and large-scale siding projects require different skills and equipment than residential shingle work. Ask for references from similar property types.
Storm Damage and Insurance Claim Experience
In Minnesota, a significant portion of roofing work involves storm damage claims. A contractor who understands the insurance process, documents damage properly, and communicates with adjusters saves you time and helps you get the full value of your claim.
Written Warranties
Get manufacturer warranties on materials and a separate workmanship warranty from the contractor. Understand what each covers and for how long. A contractor who hesitates to put warranty terms in writing is a contractor to avoid.
Red Flags to Avoid
- Door-to-door solicitation after a storm. Storm chasers follow severe weather events and pressure homeowners and property managers into quick decisions. Legitimate local contractors do not need to knock on your door the day after a hail storm.
- Requests for large upfront payments. A deposit is normal. Paying 50% or more before work starts is not.
- No physical address or local presence. If a contractor cannot show you a local office or verifiable local references, they may not be around when warranty issues arise.
- Verbal-only estimates. Everything should be in writing before work begins.
- Pressure to sign immediately. Any contractor who tells you the price is only good today is using a sales tactic, not giving you honest advice.
Frequently Asked Questions
Ready to Schedule an Inspection?
Minnesota weather does not wait, and neither should your roof assessment. If you manage a commercial building or multifamily property in the Minneapolis-St. Paul area, our team at Hoyt Exteriors is ready to help you understand exactly what your building needs.