Making sure your roof is secure isn’t always the easiest task. Though there are many different ways to make sure that you are completely safe from leaks, it’s always important to ensure that you’re investing in a quality product before you make the leap. This is why finding the best roof sealant is an important task. However, the market for roof sealants is very large and subsequently intimidating, so much that it can feel difficult to know exactly where to start.
It doesn’t have to be this way, though. That’s why I’m here to show you some of the market’s top roof sealants and also give you a Buyer’s Guide with more details on how roof sealants work. Through this Buyer’s Guide, we hope that you’re able to learn enough about roof sealants and know which products stand out among the rest!
Before we go into this Buyer’s Guide, we believe it’s important to mention that using roof sealant is a serious matter and should only be done or learned alongside somebody who is experienced with the subject! When in doubt, always get a professional’s input to make sure you’re using the best coating for your roof.
Best Roof Sealant in December, 2019
|PRODUCT||TYPE||SIZE||SQ FT PER GAL||USED FOR|
| HENRY HE587372 |
|Acrylic||5 Gallon||100||All-Around Product|
|Dicor RP-CRC-1 Rubber |
|Liquid Rubber||Liquid Rubber||1 Gallon||50-100||Metal|
|Primesource GCESRC2||Silicone||2 Gallon||50||All-Around Product|
|Deck Flex Elastomeric||Silicone||5 Gallon||50-75||Flat Roofs|
|Deck Flex All-Purpose||Acrylic||5 Gallon||up to 400||Shingles|
|Liquid Rubber Tape||Sealant Tape||4" x 50' Roll||-||Leaks|
|Henry HE687406 Enviro||Acrylic||5 Gallon||100||White Roof|
|GacoRoof GR1600-1||Silicone||1 Gallon||100||Ponding Water|
|Rubberseal Liquid Rubber||Liquid Rubber||1 Gallon||60||All-Around Product|
|EternaBond RSW-6-50 Tape||Sealant Tape||6" x 50' Roll||-||Repair|
1. HENRY HE587372 Roof Coating – Best All-Around Product
What is so efficient about this product is how much you get with your purchase. For example, the product comes with 5 gallons of roof coating that is able to last you a total of 500 sq. ft.
2. Dicor RP-CRC-1 Rubber Roof Acrylic Coating – Best RV Roof Sealant
There’s no way around it—this is a truly wonderful product that deserves all the hype it gets. It’s made for RVs and excels at that, making it easy to keep your RV roof sealed for long periods of time.
The only negative thing I have to say about this product is that it only comes with 1 gallon. Depending on the size of the roof you’re trying to protect, it might not be enough, but for most jobs it can get the job done.
However, the quality of this product negates the small amount that you get. Not only does it dry entirely within just a few days max (it should be noted, though, that it still works before this period), it can also protect your roof against UV rays easily.
3. Liquid Rubber Color Waterproof Sealant/Coating – Best Sealant for Metal Roofs
Liquid Rubber is known for their high-quality, affordable products, making this a great option for an affordable product that allows you to “test” out any products you might have questions about.
4. Primesource Building Products GCESRC2 Roof Coating – Best Silicone Roof Coating
If you happen to live in a house or an RV that has a very flat roof in an area where it rains a lot, this is the roof sealant for you. It’s a remarkable silicone-based product that is easy to apply and use, and is able to sustain any type of roof. It dries extremely quickly, and can be used just 2 hours after it has been applied. This doesn’t mean that it dries entirely after just 2 hours, but the fact that it can protect your roof from rain that quickly shows how effective a product it is. It is specifically helpful for flat roofs because it can take on a good deal of pooled water.
5. Deck Flex Elastomeric Roof Coating – Best Roof Coating for Flat Roofs
If you are somebody who wants to purchase a large quantity of roof sealant and have it last you a long time, this is the product for you. Not only does it come with 5 gallons of sealant, but this Deck Flex product is incredibly versatile. It is able to work just as well on RVs as it can on asphalt, metal, or built-up roofing (BUR), making it a truly flexible option.
One of my only gripes with this product is that it was advertised as being “easy to apply,” but it actually took some time and repeated coatings to effectively work.
6. Deck Flex All-Purpose Clear Protective Sealer – Best Roof Sealant for Shingles
Though it might seem like an insignificant factor, having a product that isn’t bright white is a very important thing in the world of roof sealants. This is because there are a variety of different surfaces that don’t look so good with a white coating, such as wooden floors and pool areas. Despite these not technically being roofs, they still fall into the category of roof sealant because of how useful the same technology is for preventing leaks.
7. Liquid Rubber Seam Tape – Best Roof Sealant for Leaks
Sealant tape can almost be argued to be an entirely different product, having a significantly different application process than typical formula-based sealants. However, this doesn’t mean it isn’t any less effective.
This is a great product for preventing leaks on a variety of different surfaces, and it’s suitable for flat roofs, trailers, mobile homes, gutters, foundations, ponds, basements, and RV roofs.
8. Henry Company HE687406 Enviro Premium White Roof Coating – Elastomeric Roof Coating
In terms of products that give you a lot for how much you pay, this Henry Company HE687406 is a great option. It is very similar to the aforementioned Deck Flex products in terms of how many surfaces it can work on. It is similarly very flexible, but differs in the sense that it isn’t as long-lasting. For example, the Henry Company product was not able to sustain as well as the Deck Flex one under heavy hail on a roof.
9. GacoRoof GR1600-1 White Silicone Roof Coating – Best Roof Coating for Ponding Water
This is one of those products that isn’t as cost-effective as other products on this list (i.e., only one gallon for a moderate price), but it is incredibly efficient if you need a silicone product that works well specifically with slanted and flat roofs.
The only thing is that it is pretty pricey considering the fact that you only get one gallon.
However, if you need something to use on specifically flat or slanted roofs, this is the best product available. It handles ponding water really well and can take on a good deal of weight, making it the most worthwhile product of its kind to invest in.
10. Rubberseal Liquid Rubber Waterproofing and Protective Coating – Best Rubber Roof Coating
When it comes to the most popular roof sealants, typically the colors are restricted to white or similar colors. This is why I believe it’s important to have a product on this list that is grey, as sometimes it helps to be able to match the color of your sealant to the surface you’re applying it to. If you’re also looking for a specifically rubber roof coating, this is the best product of its kind. The only downside of this product is that it comes with only one gallon, but that’s really it!
11. EternaBond RSW-6-50 RoofSeal Sealant Tape – Best Roof Sealant for Flashing
Similar to the formula-based sealants, it’s important to have a color that matches the specific surface you’re adhering it to. In many ways, this product is similar to the Liquid Rubber Sealant Tape I reviewed earlier in this guide (flexible and strong), but it has the added benefit of being more fit for sunny environments. If you have more issues with roof flashing during the brighter months, this is the perfect product to use when dealing with that.
There are 5 different types of common roof sealants that you should be aware of, each with their own benefits and disadvantages.
Acrylic Roof Coatings
This type of roof sealant is the one you’ll come across most frequently. It is available in both water-based and solvent products with the overall quality depending on the specific product you use. Despite the range in quality, acrylic roof coatings are typically good for various types of weather, whether it be rain or shine. The coating is specifically engineered to deflect ultraviolet (UV) rays, meaning that it stays strong over time.
Polyurethane Roof Coatings
Polyurethane roof coatings only come in solvent formulas, but still come in two different types (aromatic or aliphatic). The difference between the two is that aromatic coatings aren’t as able to handle UV rays, making them not as suitable for hotter weather conditions. This type of roof coating is unique because it can take on a lot of friction and damage, meaning that you should definitely consider using it for roofs that people walk on or ones that are in areas susceptible to hail and other harsh weather conditions.
Silicone Roof Coatings
If you’ve ever used a roof sealant while living in a town or city that gets a lot of rain, chances are you’ve used a silicone roof coating. This is because these types of coatings work best against extreme wetness. They also happen to be very useful for deflecting UV rays. If you live in an area that is both hot and rainy, you’ll want to use a silicone roof coating. They also make it much easier for your house to stay cooler during the summer months due to the UV reflecting power. The only downside to these coatings is that they are typically very expensive, making the price prohibitive for some.
Rubber Roof Coatings
These types of coatings are usually considered quite expensive when compared to other products on the market, but they are effective for making sure that your roof is entirely durable and safe from inclement weather. Because they are made of rubber, they have a certain amount of flexibility that allows them to be durable and not as easily damaged. If you use rubber roof coatings, it’s unlikely that you’ll have to replace your roof anytime soon. Not only do they protect your roof from UV rays, but they can also be very effective against infrared radiation.
Sealant tape is definitely one of the easier roof sealants to apply, as all you have to do is apply it to the spot you need to cover up. Where it works well, it is incredibly efficient and useful. However, this doesn’t mean that it is efficient everywhere you need to put it. For example, sealant tape often has trouble adhering effectively to wood and similar types of surfaces. That being said, it is typically cheaper than other products, making it worth looking into if you need to fix something minor.
Frequently Asked Questions (FAQs)
In this section, I’ll be taking a look at some of the most popular questions surrounding roof sealant so you can be well informed when looking for the right product.
What is roof sealant used for?
Roof sealant is used primarily for avoiding leaks in your roof. Roof sealant can also be very useful for any type of leaks that happen in your house.
Do you really need a roof sealant?
Not necessarily. While nobody needs to own roof sealant, it is incredibly useful if you want to have a house that is truly protected from inclement weather. Because a roof leak can cause a lot of damage in the long run if not identified properly to begin with, it’s important to have the tools to stop it before it becomes out of control.
How do you use roof sealant?
Roof sealant is an incredibly simple product to use—all you have to do is clean the surface, wait for the surface to dry off sufficiently, and then gently put on the roof sealant.
I’ve never used roof sealant before. Should I be trying this alone?
Using roof sealant can be a very serious thing to mess up, as you can seriously affect your roof by applying it incorrectly. To make sure that you’re putting it on properly, we recommend consulting a professional so you can learn to do it correctly.
Which roof sealant product is the best?
Out of all of the products reviewed for this article, it’s clear that the HENRY HE587372 Roof Coating 5 Gal is the best roof sealant product currently available. This is a truly sustainable and durable roof sealant that makes it very easy to not worry about your roof being safe or not. It’s also notoriously effective against UV rays while also being very suitable for harsh weather conditions such as rain and sleet.
What is the sign of a bad roof sealant?
A roof sealant that takes a lot of time to install is one that you shouldn’t invest in. You can typically tell these types of sealants from the competition in the sense that they usually rely on some type of additional product to keep their value strong. For example, roof sealants that require primer are also very likely to not be high-quality products.
Is it possible to remove RV roof sealant?
It usually is, but this depends on the specific type of sealant you used. Because it can vary from product to product, you’ll want to confirm by reading the instruction manual to whichever sealant you used.
When making sure your roof is secure and safe from leaks, it’s important to get a roof sealant that will give you protection while also being convenient and affordable to use. No matter which product fits your personal preference, you truly can’t go wrong with any of the roof sealants we have reviewed in this article. At the end of the day, all of the 11 products reviewed are some of the highest-quality roof sealants available.
The reason why we included so many products in this Buyer’s Guide is because there is a large enough variety that it ultimately depends on your personal preference. We hope this guide has been helpful for teaching you a bit about roof sealants so the next time you’re in the market for one, you know just where to go!