Coating vs. Replacing Your Commercial Roof: A Simple Decision Guide

Comparison of commercial roof coatings and replacements provided by expert commercial roofing services.

In the commercial roofing industry, the most commonly requested question is whether to replace or coat a commercial roof. Replacing your commercial roof is no easy task. In addition to the cost, the procedure might be annoying and uncomfortable. It has even been known to stop operations in the middle of manufacturing. Rebuilding a roof might not always be required, though. Taking the help of a commercial roofing company Mississauga, could be the ideal option in many circumstances.

What are the Advantages of Roof Coating?

A material for roof coating is put to a roof’s surface to shield it from bad weather and environmental deterioration. There are several types of roof coatings, each with its own advantages, ranging from high-solid silicone emulsions to acrylic-based polymer emulsions. These adaptable coatings not only prolong the life of the roof but also serve as reflecting paving, which lowers energy expenses, and helps with waterproofing. Furthermore, roof coatings by a roofing contractor might aid in preventing debris from amassing on the surface. Additionally, they can provide an extra shield of protection against harsh weather conditions like wind and heavy rain.

When to Coat vs. Replace Your Commercial Roof: Which is Better?

If specific requirements are met, our specialists advise covering a roof rather than replacing it. When it comes to roof coatings, the most frequent error made by any roofing contractor is to disregard these recommendations in their decision-making process.

  • Is the Surface Sufficiently Smooth for Coating?

A smooth or semi-smooth surface is necessary for the correct application of coatings. The building is not a good choice for a coating if it has a ballasted roof, which is composed of river rocks, or a tar and gravel roof. Since the coating did not completely seal around all of the surface undulations of the roof, there will probably be holes from where it did not work as intended.

  • Is It Dry Enough to Apply a Coat?

There is usually some kind of porous commercial roofing material between the roof deck and the roof surface on business roofs. They are frequently found as perlite, fiberboards, fanfolds, or polyisocyanurate boards. These materials get wet from moisture saturation caused by roof leaks. Over time, moisture would probably seep back through the roof surface if a coating were to be put over a saturated roof. This would result in penetrations in the coating, rendering it useless for preventing water intrusion into the structure.

  • Will the coating system continue to be attached to the current roof?

Even if a commercial roof occasionally satisfies the first two requirements, it shouldn’t be used. This is due to circumstances on some roofs where the current roof will eventually fail, making a silicone coating applied on top equally liable to fail. This may happen if a roof has already been coated with a less successful substance that failed to adhere to the roof. This simply indicates that the roof’s coating will flake off. It’s also true that some roofs are installed so badly that you can’t rely on them to stay on the building. A sound roof must be covered with roof coatings in order to work at the exact levels.

What are the Benefits of Roof Replacement?

When a roof is completely replaced, all old components are taken out and replaced with brand-new ones that are specifically matched to the climate and structure. The best materials typically have the longest warranties. They have a 20-year lifespan if properly cared for. Getting an impermeable barrier between you, your property, and the weather is the main advantage of replacing your commercial roof. Additionally, adding more layers provides additional insulation against heat or cold, thus reducing energy expenses.

In addition, a new roof adds aesthetic appeal that enhances the building’s individuality and ultimately raises its worth. All things considered, replacing a roof is a great investment for houses and commercial buildings.

Conclusion

Regarding your roof, you want to ensure that you make the best decision for your budget and objectives. A roof coating can significantly improve your home or building’s energy efficiency while extending your roof’s life.

When it comes to replacing a flat roof, property owners have two primary options. They can cover the existing roof material or replace the entire roof. It can be difficult to choose the appropriate course of action in certain situations. Nevertheless, one can choose the option that will be best for the property by having a basic understanding of the benefits and drawbacks of each with the help of experts at PWCR, a leading roofing company in Mississauga. Contact us today for more details!

FAQs

Q1: How do I know whether my commercial roof needs a coating or a full replacement?

A1: The decision between coating and replacing depends on the current condition of your roof. If the roof is structurally sound, relatively dry, and has a smooth surface, a coating can be a highly effective and cost-efficient option to extend its life. However, if the roof has significant structural damage, widespread moisture saturation in the insulation layers, or has already experienced multiple coating failures, a full replacement is the more appropriate solution. A professional inspection from a qualified roofing contractor will give you an accurate assessment of which path makes the most sense.

Q2: What are the main benefits of choosing a roof coating over replacing the entire roof?

A2: Roof coatings offer several compelling advantages when the roof is eligible for one. They are considerably less expensive than a full tear-off and replacement, extend the lifespan of the existing roof by protecting it from UV rays and water damage, reduce energy costs through reflective properties, and can often be applied with minimal disruption to business operations. They also contribute to waterproofing and can help prevent debris accumulation on the surface.

Q3: Are there situations where a roof coating should not be applied?

A3: Yes. Coatings are not suitable for all roofs. If the existing roof has a ballasted or tar-and-gravel surface that is not smooth, the coating will not adhere properly and will likely fail. Similarly, if the roof insulation beneath the surface has become saturated with moisture from leaks, applying a coating on top will trap that moisture, leading to future penetrations and failures. In cases where the existing roof is structurally unreliable or has already failed in multiple areas, a coating will not solve the underlying problem.

Q4: What is the typical lifespan of a new commercial roof after a full replacement?

A4: A properly installed commercial roof using high-quality materials can last twenty years or more with adequate care and maintenance. The specific lifespan depends on the materials chosen, local climate conditions, installation quality, and how consistently the roof is inspected and maintained. Premium roofing systems come with manufacturer warranties that can span ten to twenty years or beyond, providing additional protection and peace of mind for property owners.

Q5: Does replacing a commercial roof add value to a commercial property?

A5: Yes, a new commercial roof can meaningfully increase the value and appeal of a commercial property. A new roof improves curb appeal, reduces the risk of water damage and operational disruptions, and may lower energy costs with modern energy-efficient materials. For prospective buyers or tenants, a recently replaced roof signals that the building has been well maintained, which can positively influence leasing decisions and property valuations.

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