Replacing a commercial roof can be costly, time-consuming and disruptive. It’s why the smarter move might be to restore—not replace. Here’s how to find out if it’s the right solution for you.
Commercial roofs represent one of the most important parts of the building envelope for facilities everywhere, helping to reliably keep out the elements and protect interior operations through long-term waterproofing performance.
And that’s why for building owners and operators, keeping the roof in good condition is a major priority. But full tear-offs and replacements are not the only option for building owners and roofing contractors when repairs are needed, nor are they always the most effective.
Instead, commercial roof restoration has become an increasingly viable alternative for any roof type, and can be highly profitable for roofing professionals. Using high-quality materials and the proper techniques, restoration can help ensure commercial roofs regain and maintain top-level performance at a fraction of the cost for a full replacement.
So, how to tell if a roof is a good candidate for restoration? Read on to find out:
What Is Roof Restoration?
First, it’s worth defining what roof restoration really means. A good roof restoration process generally looks like this:
Step 1: Remove any debris and clean the roof to prepare for the rest of the project.
Step 2: Depending on the condition of the roof, a primer is applied to ensure good adhesion for patching, stain blocking, and rust inhibition.
Step 3: A high-performance patch system is applied to seal the roof and ensure all parts of the system are watertight and deliver reliable waterproofing protection.
Step 4: Protective coatings can be applied to ensure long-lasting performance.
All the while, regular activity inside the building can continue uninterrupted.
Compared to a full tear-off and reroof, restoration does not require specialized equipment to perform, nor does it leave your building interior exposed to the elements for prolonged periods. The process is also much faster—helping building owners save costs and helping roofing contractors move onto their next job more quickly.
Now, let’s determine if your roof is a good candidate. Here are five considerations to make:
#1: Your Roof Is Less than 10 Years Old
Commercial roofs can generally be expected to provide a 20- to 30-year average lifespan. That figure heavily depends on the roofing materials, installation quality, maintenance, and local weather conditions—but in any case, building owners view an investment in a new roof system as one that should pay off for several decades.
But roof damage can occur at any time and, following inspection, may not merit full replacement—and that’s great news if the roof has been installed recently. Materials across the roof’s entirety should still be close to like-new condition, making targeted restoration efforts highly effective.
#2: Damage to Your Roof Is Localized
Roof damage typically isn’t uniform across the entirety of a commercial roof. Weather patterns, severe storms, foot traffic, and other threats may occur in localized zones where restoration efforts can be more targeted.
For example, the roof area where commercial HVAC equipment is located may see more regular wear and tear than other areas. This is because such equipment requires regular inspection and maintenance. Extra foot traffic, the dropping of an errant tool by a technician, and more can weaken seams and flashing in such areas, but not others.
The bottom line: If the majority of the roof is still performing, targeted repair plus restoration can solve issues without wasting functional material.
#3: Your Roof Is Less than 25% Water Damaged
Some circumstances, of course, will necessitate full replacement. In the case of water damage, for example, a good rule of thumb to remember is that roofs that have been 20%-25% (or more) water damaged will likely need to be replaced in their entirety, per many local and national building codes.
For example, the Florida Building Code requires the entirety of the roof to be replaced if more than 25% of the system has experienced significant water damage. This rule aims to ensure structural integrity and compliance with wind resistance standards, often triggered after storm-related damage.
#4: The Roof Structure Remains Sound
A commercial roof is made of many different components, and if the roof is not structurally compromised, restoration might be the right strategy.
For example, if the underlying roof system—including the deck, insulation, and framing—remains in good condition, restoration should remain an attractive option. Restoration is highly effective for surface-level issues, including minor leaks, seam failures, and aging membranes, and these problems can be addressed without removing the entire roof.
#5: Your Building’s Long-Term Plans
When considering restoration, it’s worth evaluating the anticipated service life of the entire building.
Restoration techniques can significantly extend the life of a commercial roof, but not quite to the same degree as a full tear-off and replacement, and this should be weighed when making a decision. For example: Restoration is the sensible option for a retail store that sits in the path of a proposed freeway expansion. A major museum in a popular cultural district with significant roof damage? That’s another story requiring a long-term solution.
Consider also potential expansion plans for the building. It is generally more economical to reroof a structure in conjunction with an expansion rather than split the project across multiple years. Localized restoration and repair might be advantageous if expansion plans are not on the horizon.
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Ultimately, commercial roof restoration can be a highly effective and cost-effective option to elevate roofs to their full potential. With a better understanding of when restoration is appropriate, you can make the best decisions for your business.
Interested in learning more? APOC professionals maintain deep experience in roof restoration practices, and they can help deploy the most effective products and techniques to restore performance and deliver long-term waterproofing protection. Learn more about roof restoration or sign up for our training programs today:
Learn About Expert Roof Restoration Training from APOC