A roof does more for your home than you would think, but over time, exposure to rain, sunlight, and temperature changes can take a toll, leading to leaks, cracks, and other issues. That’s where roof sealants come in — acting as a protective layer to ensure your roof stays strong and functional for years to come.
In this blog post, we’ll guide you through everything you need to know about roof sealants, including the different types, how to choose the right one, and our top product recommendations. With our professional expertise, you’ll be equipped to make the best decision for your roof.
Why Do You Need Roof Sealant?
Roof sealants are specially formulated coatings designed to protect your roof from damage caused by water, sunlight, and other environmental factors. Whether you have a residential or commercial roof, a quality sealant can make all the difference.
Here’s what a quality roof sealant can do for your roof:
- Waterproofing: Prevents leaks by sealing small cracks and gaps
- UV Protection: Shields your roof from harmful ultraviolet rays, reducing wear and tear
- Extended Lifespan: Enhances the durability of your roof, saving you money on premature repairs or replacements
- Weather Resistance: Protects against harsh weather conditions like heavy rain, snow, and strong winds
Common roof problems like leaks, blistering, and cracks can be effectively addressed with the right sealant. Investing in one is not just about fixing current issues — it’s also about preventing future damage.
Are Roof Sealants The Same as Roof Coatings?
When we listed the qualities that roof sealants provide, you might have noticed that they seem quite similar to roof coatings. While the primary function of both is to protect your roof, there are quite a few differences. Sealants are used for specific areas, to fill gaps in the roof. On the other hand, roof coatings can typically be used on the entire surface of the roof as an extra protective layer. They aren’t typically involved in repairs either, while sealants are.
Best Types of Roof Sealants
Different roofing materials require different solutions. Here’s an overview of the main types of roof sealants and their best applications:
Acrylic Sealants
Acrylic sealants are water-based and create a reflective and durable barrier. They are widely used on sloped roofs to improve energy efficiency.
Best For: Sloped roofs (asphalt shingles, tiles)
Pros: Affordable, reflective, and easy to apply
Cons: Not ideal for standing water or flat roofs
Silicone Sealants
Silicone sealants are known for their waterproofing and UV-resistant properties. They excel in extreme weather and remain flexible over time, making them perfect for flat roofs.
Best For: Flat roofs with ponding water
Pros: Durable, waterproof, and resistant to UV damage
Cons: Can be pricier and difficult to apply
Polyurethane Sealants
Polyurethane sealants offer strong adhesion and flexibility. These sealants are especially effective for metal or concrete roofs in regions with fluctuating temperatures.
Best For: Metal or concrete roofs
Pros: Highly durable, flexible, and resistant to weather damage
Cons: Less UV-resistant than silicone
Rubber (EPDM) Sealants
Rubber sealants are highly effective for waterproofing flat or low-pitched roofs. They are a long-lasting solution commonly used for large commercial spaces.
Best For: Flat and low-pitched roofs
Pros: Long-lasting and highly waterproof
Cons: Requires proper preparation for effective adhesion
The Best Roof Sealant Products In 2025!
While there are great options among all the different types of sealant, here are some of our picks for sealant, depending on the type of roof you have.
Best Overall
Liquid Rubber Waterproof Sealant

Liquid Rubber is an industry leader in both roof sealants and coatings, and overall, this water-based roof sealant offers robust waterproofing without the harsh chemicals typically found in conventional sealants. Free from VOCs and strong odors, it can be safely applied indoors and outdoors without requiring you to use specialized breathing equipment.
It’s favored for its impressive flexibility, featuring over 1000% elongation that helps prevent adhesion failures. UV-stable and suitable for flat, metal, and sloped roofs, it requires 3 to 4 heavy coats to achieve a proper thickness for protection.
Best Roof Sealant For Asphalt Shingle Roofs
Liquid Rubber Sealing Tape

Asphalt shingles are one of the most common roofing materials, and when patching cracks and gaps, you can use multiple types of sealants. One convenient option is Liquid Rubber Sealing tape.
Not only does this sealant work for asphalt shingles, it’s compatible with many different types of roofing materials. It effectively creates instant, reliable bonds across diverse roofing materials, including EPDM, metal, tiles, aluminum, wood, and concrete surfaces. The application process is straightforward — simply clean the surface, peel the backing, and press firmly to activate the immediate bonding process.
Best Roof Sealant For Metal Roofs
Henry 289 White Roofing Sealant

Metal roofs are growing in popularity, especially since they require less maintenance than other roofing options. However, when it does, ensure that you have a roof sealant specially designed for metal roofs. One of the best metal roof sealants is the Henry® 289 White Roof Sealant.
This product delivers exceptional performance with a thick, water-based formula that bonds firmly to metal surfaces, making it ideal for sealing metal roof seams, fasteners, and flashings. The sealant’s versatility shines in metal roof applications around AC units, vents, and other rooftop penetrations where leaks commonly occur.
Best Roof Sealant For Flat Roofs
Liquid Rubber Waterproofing and Protective Coating
Though our focus has been primarily on roof sealants for this blog post, Rubberseal’s premium coating is a proactive choice for flat roofing systems. This option combines waterproofing with insulating properties, making it especially effective for flat roof applications where standing water is a concern.
The coating is also Energy Star-rated and offers exceptional protection against UV exposure and aging while maintaining flexibility for long-term durability. With its low VOC formulation, it also provides an environmentally conscious solution for roof protection.
Conclusion
Choosing the right roof sealant is a critical decision that can protect your roof, extend its lifespan, and save you money in the long run. By understanding your roof’s needs and considering the products and tips outlined here, you’ll be well-equipped to make an informed choice.If you want to ensure that your roof is up to standard, look no further than the team of Prestige Roofing LLC. We will thoroughly inspect your roof and inform you about the steps to be taken further. Contact us today at (920) 791-0414 for expert guidance and services tailored to your roof’s unique needs!