When Should You Choose a Commercial Flat Roof Tear-Off?

Introduction
While installing a new roof over an old one may seem quicker, it isn’t always the right decision. In many cases, you’ll need to completely tear off old roofing to give your new roof a cleaner foundation and to allow it to perform better over time. It also helps address hidden issues that could otherwise compromise your building’s structure.
Can’t decide between roofing overlay vs tear off? Read on as we discuss what a roof tear off and why you should leave the job to a trusted commercial roofing company like ours.
What is a commercial flat roof tear-off?
When you request a full tear-off, your commercial roofing contractor will remove all existing layers of your roof before installing a new system. This includes taking off everything, from the membrane and insulation to any cover boards and the structural deck.
By clearing everything away, your roofers in Waco can start fresh rather than building over worn or damaged materials. They can thoroughly inspect your roof deck and underlying components to fix any hidden moisture or structural concerns before installing the new roofing system.
When is a tear-off necessary?
You may need to tear off your commercial roofing if underlying damage or structural issues would compromise the performance of the new roofing system. Here are some instances that make a full removal necessary:
Significant roof damage
Covering your old roof with another layer can trap problems instead of fixing them, especially if it has widespread deterioration or compromised insulation. Removing the old system allows repairs to happen at the source.
Moisture in the roof system
When water gets trapped in the insulation or under the membrane, it can lead to mold and deck damage. Plus, it can decrease your building’s energy performance. With a tear-off, you can remove the saturated materials and replace them with a dry, stable base.
Building code or warranty requirements
Some local codes limit how many roofing layers you can add to your commercial building. In addition, roofing manufacturers may also require you to completely tear off your old roof so your new system can qualify for full warranty coverage.
Long-term building plans
You’ll likely be using your building for many years to come, so it’s best to invest in a stronger foundation for its roof. Tearing off your flat roof ensures that your new roofing system will last and have fewer issues over time. Plus, it will reduce your building’s maintenance requirements.
Roof overlay vs. full tear-off: advantages, disadvantages & costs
While comparing a roofing overlay vs tear off, it helps to examine the condition of your roof, as well as your performance goals and budget. That way, you can weigh the pros and cons of each and pick the right solution that can lead to more savings and peace of mind for your property.
- Better inspection & repairs
With a full tear-off, your contractor can easily find and fix any hidden damage. It will give your new roof a better foundation, so it lasts longer and requires fewer repairs. On the other hand, overlays leave existing problems concealed. This makes them more prone to getting worse over time, leading to costly repairs. - Improved roof performance
Installing a new roofing system on a clean deck will allow your roof to drain properly and perform as designed. Overlays can limit how well the new membrane functions, so you may not be able to maximize the benefits of changing your roof. - Energy & insulation upgrades
A tear-off gives you the chance to install new insulation that meets current efficiency standards, so you may be able to improve your property’s energy efficiency and reduce your heating and cooling costs. Overlays usually rely on older insulation, which can affect energy costs. - Enhanced warranties
Roofing manufacturers may give you stronger warranty coverage when you remove the old roof before installing their product. Overlays will also come with a warranty, but expect it to be limited or have shorter terms. - Structural problems
Adding layers increases the weight of your roof, causing unnecessary stress to your structure. Tear-offs reduce this risk by removing the unnecessary load. - Insurance issues
Some insurers prefer or require a tear-off when damage or moisture is present. Overlays may complicate future claims. - Reduced costs
Overlays typically cost less upfront due to lower labor and disposal expenses. You might pay more for a flat roof tear-off at first, but you can easily offset that cost when it reduces your repair and maintenance expenses down the road.
Conclusion
The best way to make a confident decision is with a professional evaluation from our experts. Give Clark Roofing a call at 254-374-4477 to schedule a flat roof assessment with our team and find out whether it’s a good idea to tear off your roofing.
FAQs
How long does a commercial flat roof tear-off take?
Your professional roofing contractor can provide a clear timeline for both the tear-off and the new installation. Commercial flat roof tear-offs take one to three days, depending on roof size and complexity. That said, we usually plan the work carefully to minimize disruptions to your daily operations.
Do I need to close my business during a commercial flat roof tear-off?
In most situations, no. We can schedule the work in phases or during off-hours so your building remains open and functional throughout the process.
Isn’t it more expensive to tear off a commercial flat roof?
A tear-off does cost more upfront than an overlay. However, it often leads to fewer repairs and improved energy efficiency. Plus, it makes your new roof that lasts longer, so you can reduce ownership costs.
What should I look for when choosing a roofing contractor for a commercial roof tear-off?
Make sure you’re working with a professional who’s licensed for commercial roofing work in Texas. Proper licensing confirms they meet our state’s requirements for a commercial roof tear-off. Also, make sure they’re bonded, as this will protect you if they fail to meet their contractual obligations. Insurance, including general liability and workers’ compensation, will also give you added peace of mind in case something goes wrong while they’re working on your property.
What warranties will come with a flat roof tear-off?
Most reputable contractors offer a manufacturer’s warranty covering material defects and a workmanship warranty covering installation-related issues. Before signing, confirm the length of each warranty and what they include. Likewise, find out how they will handle the claims.