If you own or manage a commercial building in Wisconsin, you already know that repairing or replacing roofs is expensive but sometimes necessary. A second major expense is the heating/cooling (energy) bill and again often necessary.
The relation between the two is that many commercial buildings lose money because of their roof (either when replacing the roof or when the heating and cooling escapes right through the roof).
Whether you’re looking to better insulate the building and reduce energy costs or fix your roof, roof restorations are good for quick + seamless repairs, economical restorations back to former glory, and/or noticeable reduction in energy bills when roof spray foam is utilized.
In most cases, commercial roof restorations in Wisconsin are significantly less expensive and less disruptive than tearing off an old roof and installing a new one, while still matching the life expectancy and warranties of new metal or rubber roofs.
Want the summary?
Roof restorations in Wisconsin commonly fall into a range of $3.50 to $9 per square foot, depending on the system used (flat roof restoration, metal roof restoration, or spray foam restoration), the condition of the existing roof, and how much (if any) tear off is required before the restoration begins.
Metal restoration + flat roof restoration systems are typically $3.50 to $5.50 per square foot, while spray foam systems generally cost $6.50 to $9 per square foot.
Why Restoration Costs Less
Commercial roof restoration is usually less expensive than roof replacement because it avoids the biggest cost drivers: full tear-off, disposal, new materials, and labor.
In a roof restoration, the existing roof can stay in place, which saves labor & materials and reduces project time. That means fewer dumpster loads, less mess to clean up, less materials, less labor time (+ lower number of workers), and less interruption for the building’s occupants.
Price Ranges + What Affects the Price
Here is a practical way to think about restoration pricing versus replacement pricing:
- Metal roof restoration (coatings): $3.50-$5.50/sq. Ft.
- Flat roof restoration (fabric + coatings): $$3.50-$5.50/ sq. ft.
- Spray foam restoration (spray foam + coatings): $6.50-$9/sq. ft.
- Metal roof replacement: $10-$18/sq. ft.
- Rubber roof replacement: $6-$12/sq. ft.
Those are wide ranges, but your roof is unique and will be more or less expensive depending on various factors such as:
- Roof Penetrations: The more HVAC units, pipes, drains, or skylights, the more expensive the roof because they require custom flashing and sealing, which increases labor time.
- Material colors: White rubber roofs can cost $1-$2/sq. ft. more compared to black rubber roofs. Copper metal roofs can be twice as expensive as steel.
- Accessibility: High-rise buildings or properties with tight alleyways that require cranes or specialized safety equipment have higher labor premiums.
Restoration Vs Replacement
Restoration is usually the better value when the existing roof is still structurally sound and the main issues are leaks, wear, aging seams, or declining performance.
Replacement is more appropriate when the roof is structurally beyond saving.
A restoration project can also be attractive when you want to improve insulation and reduce energy loss. Spray foam systems can add insulation value along with waterproofing and increase structural strength.
The smartest option is not always the cheapest one upfront, but the one that gives the best value for your building and your budget.
People might dismiss roof restorations because they are a cheaper option, and we all know that the cheapest option is junk…right?
Well, not necessarily. Let’s evaluate the different roofs on their lifespan, warranty, disruption, and replacement cost.
Lifespan
How long does the roof actually last before leaking?
- Restorations: 20-25 years
- Rubber roofs: 20-30 years
- Metal roofs: 30-50 years
Warranties
At what point does the company you paid to install the roof disappear?
There’s a few different kind of warranties – material breakdown warranties, coating warranties, watertight warranties, and so on, but here’s the gist:
- Restorations: 15-20 years
- Rubber roofs: 20 years
- Metal roofs: 20-30 years
20 year warranties are the most typical warranties offered for roofs (like the unspoken industry standard for roof warranties).
However, watch out for hidden warranty fees when picking a roof type and a contractor. Some companies offer a quote for the roof, but there are extra fees tacked on to get the warranty(ies).
Disruption
- Most Disruptive: Metal Roof Installation
- High noise levels: screw drivers, metal clanging
- Staging area for 30-foot metal panels and cranes that will take up space in parking lot
- Safety/annoyance: can cause minor vibrations that shake dust from ceiling
- Moderately Disruptive: Rubber Roof Installation
A rubber roof installation is less noisy than metal, but it still introduces significant staging and minor chemical inconveniences.
- Moderate noise levels: foot traffic, tear-off, and drills
- Fumes + odors: If the contractor uses the fully adhered method (gluing the rubber down), the industrial solvents and bonding adhesives emit very strong chemical odors
- Staging area for large rubber rolls, insulation boards, and heavy dumpsters for old debris
- Least Disruptive: Spray-On Roof Restoration
- Low noise levels: the loudest part is pressure-washing; there is no drilling, hammering, or tearing off materials (typically).
- Staging area: only need space for a truck (not a semi) or two and the trailer(s) (+ a dumpster if tear-off is necessary).
- Mess: Spraying can result in overspraying on windy days which can leave tiny paint spots on vehicles if they are not moved.
Replacement Cost
When the roof needs to be replaced, how much will it cost to get another 20 years out of it and renew my warranty?
- Restorations – just re-coat and good to go: $3.50-$5.50/sq. ft.
- Rubber roofs – tear-off + new materials: $6-$12/sq. ft.
- Metal roofs – tear-off + new materials: $10-$18/sq. Ft.
Example Budget Scenarios
Here are the number crunches on an example 10,000 sq. ft. roof:
- Metal/Flat roof restoration: $35,000-$55,000.
- Spray foam restoration: $65,000-$90,000.
- Metal roof replacement: $100,000-$180,000.
- Rubber roof replacement: $60,000 to $120,000.
Those are broad estimates, but they show why restoration is a good option for repairing a failing roof without breaking the budget.
What You Should Ask First
Before asking “How much will it cost?”, ask “Can my roof be restored?”
A good roof contractor will inspect the roof, identify problem areas, explain what repairs are needed first, and give you a clear written estimate.
You should also ask what warranty is included, how long the system is expected to last, and whether the price includes prep work, repairs, and cleanup.
It is also worth asking the contractor for references, how the roof handles winter and summer weather, how long the project will take, and what kind of business disruption to expect.
Final Thoughts
Commercial roof restoration is often a cost-effective middle ground between patching leaks and paying for a full replacement.
It balances price with proven performance and protection while not disrupting business operations.
Need a restoration estimate for your commercial roof in Wisconsin, Minnesota, or Iowa? Schedule a no-obligation roof inspection with SR Commercial Roofing and to get a clear, honest assessment of your roof’s condition and a quote with viable restoration options. Call (608) 844-4933 to get started.
