Does Rubber Roof Coating Stop Leaks? Your Ultimate Guide

Does Rubber Roof Coating Stop Leaks? Your Ultimate Guide

Posted by Armor Garage LLC on Jun 23rd 2025

Maintaining the integrity of your roof is one of the most critical aspects of protecting your home, commercial property, or RV. Leaks can cause extensive damage, leading to costly repairs if left unaddressed. This is where rubber roof coatings come into play. But do rubber roof coatings stop leaks? Can it truly provide a long-lasting solution to water infiltration? This comprehensive guide explores the effectiveness of a rubber roof coating, the benefits it offers, and why ArmorGarage epoxy based coatings provide the best results.

What Is ArmorGarage Tar & Rubber Roof Coating?

The Tar & Rubber Roof coating is a specialized protective layer applied to roofs with materials such as EPDM (ethylene propylene diene monomer), PPO and any type of tar based roof materials such as Torch Down, built up roofs and etc. They can be flat or pitched type roofs. This coating creates a seamless, weather-resistant barrier that protects the roof from extreme weather, water damage, hail damage and harmful UV rays. It is particularly popular for flat roofs, RV roofs, pitched roofs, and other surfaces that require additional protection from environmental wear and tear. We also carry specialized coatings for roofs with Ponding Water and Metal roofs that have a great deal of expansion and contraction. We don't sell a one roof coating fits all product.


ArmorGarage roof coatings are industrial grade rubber epoxy copolymers that will 100% stop any roof leaks when properly applied helping to reduce maintenance costs and downtime in the long run from repeated patching. Apply our coating once and you have a 15 year guaranteed product that can be recoated unlike silicone coatings.

How Does Rubber Roof Coating Stop Leaks?

To understand how our roof coating works to stop leaks, it’s essential to examine its key properties:

Seamless Application

One of the primary reasons our rubber epoxy roof coatings are so effective is their ability to create a uniform, continuous monolithic layer. With the lowest permability ratings it forms a single solid layer of epoxy rubber that is impenetrable by water. If you apply our seam mastic to any seams or flashings that need repair and apply two full coats over your entire roof it's simply impossible for water to leak through. And our coatings have the lowest permeability ratings which means they start out with the tighest chemical structure combined with our 99.9% memory retension means the microscopic pores of the coating won't stretch open allowing moisture to penetrate. Its why sometimes you patch and coat your roof with other products and then all of a sudden your roof is leaking again and you can't seem to see from where or why its leaking. It's because the pores of stretched open from expansion and are not fully closing back up and given enough rain on the roof, the moisture is penetrating right through the coating itself. So you look all you want but you'll never find an actual leak.

That's why ArmorGarage roof coatings are superior and the number one choice for property owners. Our roof coatings are unequaled. 

Flexibility and Durability

 ArmorGarage rubber roof coatings are engineered to expand and contract with the roof's natural movements due to temperature fluctuations. This flexibility prevents cracks, fissures and open pores that can lead to leaks.

Waterproof Barrier

The primary purpose of roof coatings is to provide a waterproof membrane. Whether it’s a sudden downpour or prolonged humidity, our coatings prevents water/moisture from penetrating the roof surface. We subject all our roof coatings to extreme weather testing to ensure that no matter the weather conditions our coatings will keep your roof water tight. They even protect your roof from hail, see the testemonial from an homeowner who had a 100 year old historical metal roof saved during a hail storm that took out 80% of the roofs in his area. ArmorGarge metal roof coating saved his roof with only slight cosmetic damage that was taken care of with a single pail of the coating.

There's a reason why Beale Air Force Base chose us to replace the silicone roof coating they were using.

Filling Existing Gaps

ArmorGarage rubber epoxy coatings can effectively seal small cracks, holes, or worn areas, halting existing leaks and preventing new ones from forming. Unlike roofing cement or other temporary fixes, our coatings offer a more durable and lasting solution.

Fixing and patching or should we say trying to fix, can lead to making things worse. You patch and patch and the leaks keep reappearing and you get to the point where you have multiple layers of multiple products that are all useless. It can get to the point where they all have to come off which can be difficult to do. 

It's counter intuitive but when your roof begins to leak it's alway far cheaper in the long run to simply apply one of our roof coatings and be done with your roof for the next 15-20 years. At which time you can simply roll on one single coat to bring the roof back to brand new which can't be done with silicone coatings.

Applications for Rubber Roof Coatings

ArmorGarage roof coatings are versatile and can be applied across various roof types, making them a go-to solution for property owners. Some of the most common applications include:

Flat Roofs

Flat roofs are notoriously prone to pooling water, which can lead to leaks. We offer both a standard flat roof coating and one for ponding water. If your ponding area is small you can apply the standard coating to everywhere it's not holding water and then apply the ponding roof coating to those areas that need it.

Metal Roofs

Over time, metal roofs can develop rust, split seams from expansion and contraction. Our Metal roof coating protects metal surfaces, has 500% elongation factor and is heat reflective. Read how our metal roof coating dramatically lowered the living space temperature for two of our customers. Even though they were residential users the same applies to commercial buildings, it doesn't matter the size of the roof, the coating works the same!

RV Roofs

RVs frequently endure harsh environments, from intense sun exposure to heavy rain. Our roof coatings, reduce the heat transfer keeping you cooler while ensuring long-term durability against leaks and weather damage.

EPDM Roofing

Popular in commercial properties, EPDM roofs benefit greatly from the application of ArmorGarage Tar & Rubber roof coating. Our coating actually outperfoms original your roof's original EPDM material.

Sloped Roofs

Though less susceptible to pooling water, sloped roofs  still benefit from the added protection rubber coatings offer against leaks and UV degradation. ArmorGarage roof coatings are viscous enough to be applied to pitched roofs without worrying about the coating running and dripping off the roof.

Benefits of Application

Our roof coatings are simple to apply and can be done by anyone with no prior experience needed. We offer expert evaluation of your current roof's condition and will recommed how to prep the roof and apply the coating. If you prefer to have a handyman or painter apply it we can have a 5 minute conversation to guide him through the porocess. It's really very straight forward. 

Proper Surface Preparation

First you want to clean the roof of all dirt and debris and make sure it's 100% dry. Next you want to remove any previous peeling coating(s) and roof cement patches that are cracking and or aligatoring. Then apply our roof mastic to any seams, screws or flashings that need to be sealed. Now your roof is ready for two coats of one of our roof coatings

Correct Application Techniques

Different roof types require different application methods. Small flat or pitched roof s can be done simply by roller and brush. Larger roofs can be sprayed with a good commercial sprayer such as a Graco 795 or 1016. Metal roofs are usualy spayed unless on the smaller scale where it's just easier to do with a roller and brush.

Choosing the Right Coating Type

Selecting the right product for your roof is critical. An ArmorGarage Rep can help you with selecting the right product and guide you as to prep the roof and apply the coating to ensure your project's success. It's a very easy and straight forward process once you know what to do.

Contact us for product info and to get a quote today.

Long-Lasting Results

After you've done your roof you may be interested in upgrading your floor see the following article before you purchase any epoxy floor coating. 

Read more: How Do I Know Which Type of Epoxy Flooring Is Best For My Floor?

Why Epoxy Rubber Roof Coatings Are a Cost-Effective Solution

Roof replacement can be expensive, especially for larger commercial buildings or specialty roofs. Epoxy Rubber roof coatings offer a more cost-effective alternative by restoring and preserving your existing roof. Here are several financial benefits of opting for an ArmorGarage rubber based epoxy roof coating:

Reduced Maintenance Costs

By sealing leaks and cracks, rubber coatings minimize the need for frequent repairs. They form a durable, weather-resistant barrier against rain, UV rays, and wind. This protective layer helps reduce the wear and tear that typically leads to recurring issues. Most times the constant patching leads to many different products layered ontop of each other that can be incompatible with each other causing serious issues.

Extended Roof Lifespan

A properly applied roof coating can add many years to the lifespan of your roof, eliminating the need for a complete replacement. The coating acts as a shield against temperature extremes and environmental degradation. With proper maintenance, it preserves the integrity of your roofing system for decades.

Energy Savings

ArmorGarage roof coatings have reflective properties that reduce heat absorption. This leads to better energy efficiency and lower cooling costs. By keeping indoor temperatures stable, they lessen the strain on HVAC systems. Over time, this can lead to significant savings on utility bills.

Avoiding Unexpected Repairs

Leaks can cause structural damage, which often goes unnoticed until costly repairs are necessary. Our roof coatings save you from dealing with these hidden expenses. They create a watertight surface that prevents moisture intrusion. This proactive solution helps you avoid major disruptions and emergency repair costs.

Wrapping Up

ArmorGarage rubber epoxy roof coatings offer a proven, effective solution for stopping leaks, minimizing maintenance, and boosting energy efficiency. By forming a 100% seamless, weather-tight barrier, they ensure lasting protection against watere infiltration and harsh environmental elements and be recoated when and if needed for a decade or more of leak free service.

At Armor Garage, we specialize in epoxy based rubber roof coating systems designed for maximum performance and longevity. Whether you're aiming to extend your roof’s service life or avoid unexpected repair costs, our coatings provide the reliable protection your structure needs. See our shingle roof coating for added home protection, and our concrete coating for all your concrete surfaces. For more information or to get started, contact us today!