Best Chimney Crown Sealer (Buyer’s Guide)

If you live in a cold climate, you know how important it is to keep your chimney clean and free of debris. One way to do this is by installing a crown sealer on top of the chimney cap. Crown seals are typically made from metal or plastic and they work as an additional barrier between the roof and rain water that can seep into your home’s living area. In this post we will review five of the best crown seals for sale today, so that you can make an informed decision about which one to buy for your house.

Best Choice

MasonryDefender Chimney Crown Sealer - Brushable Sealant Fixes Cracked Chimney Tops & Prevents Chimney Leaks
  • Seals and Waterproofs Chimney Crowns - Stop Water Leaks Fast With This Elastomeric Sealer Designed...
  • Permanently Flexible Sealant - Won't Crack or Chip Over Time, Stays Flexible
  • Long Lasting Sealant Helps Prevent Chimney Leaks - Lasts for Years
  • Easy to Apply With a Paint Brush - Simply Brush 2 Coats of Product On Chimney Crowns for Superior...
  • Great Coverage - Covers 20 Sq. Ft. per Half Gallon Container

Masonry Defender Chimney Crown Sealer is a premium, brushable sealant that fixes cracked chimney tops and prevents masonry. It can be used on all types of brick, stone or stucco surfaces to prevent the penetration of water into your home’s exterior walls.

Best Selling Chimney Crown Sealer

In the old days, most people were content to have a chimney that was just a hole in their roof. However, as our homes became more and more energy efficient, we found ourselves needing to seal off those pesky holes that let hot air escape through the top of our home! We’ve done all of the research on crown sealers so you don’t have to. If you need help picking out which one is right for your home, check out this guide and see if any of these products might be what you need!

Best No. 1
MasonryDefender Chimney Crown Sealer - Brushable Sealant Fixes Cracked Chimney Tops & Prevents Chimney Leaks
  • Seals and Waterproofs Chimney Crowns - Stop Water Leaks Fast With This Elastomeric Sealer Designed...
  • Permanently Flexible Sealant - Won't Crack or Chip Over Time, Stays Flexible
  • Long Lasting Sealant Helps Prevent Chimney Leaks - Lasts for Years
  • Easy to Apply With a Paint Brush - Simply Brush 2 Coats of Product On Chimney Crowns for Superior...
  • Great Coverage - Covers 20 Sq. Ft. per Half Gallon Container
SaleBest No. 2
Meeco's Red Devil® 90100 Brushable Crown Repair 1/2 gallon
  • Brushable crown repair
  • Fast-setting elastomeric coating
  • Protects Chimney crowns from water intrusion
  • Use on chimney crowns, chimney corbels and tops of masonry or parapet walls for exterior...
  • Easily apply two coats with a 3" or 4" paint brush after filling larger cracks or voids with...
Best No. 3
CrownSeal Crown Repair (2 Gallon)
  • 10 Year Warranty, Stays Permanently Flexible
  • Trowelable Coating That Repairs Cracked, or Damaged Chimney Crowns to Stop Water Intrusion
  • No Bonding Agent Required, Ready to Use
  • Natural Concrete/Mortar Look
  • Environmentally Friendly, Soap and Water Cleanup

MasonryDefender Chimney Crown Sealer

MasonryDefender Chimney Crown Sealer - Brushable Sealant Fixes Cracked Chimney Tops & Prevents Chimney Leaks
  • Seals and Waterproofs Chimney Crowns - Stop Water Leaks Fast With This Elastomeric Sealer Designed...
  • Permanently Flexible Sealant - Won't Crack or Chip Over Time, Stays Flexible
  • Long Lasting Sealant Helps Prevent Chimney Leaks - Lasts for Years
  • Easy to Apply With a Paint Brush - Simply Brush 2 Coats of Product On Chimney Crowns for Superior...
  • Great Coverage - Covers 20 Sq. Ft. per Half Gallon Container

Product Description

Masonry Defender Chimney Crown Sealer is a premium, brushable sealant that fixes cracked chimney tops and prevents masonry. It can be used on all types of brick, stone or stucco surfaces to prevent the penetration of water into your home’s exterior walls.

It forms an excellent bond with most building materials including steel, aluminum, wood etc., but it will not adhere to asphalt roofing shingles or EIFS/stucco systems.

The product comes in two colors – tan for new construction applications and black for mending cracks already present in the crowns before applying this product over them. This adhesive provides superior adhesion even under tough environmental conditions like high wind up to 111 mph (50 m/s).

The sealant is self-leveling and brushable, making it easy to apply. It cures within 24 hours at room temperature (70°F) and has a long shelf life of up to two years when stored indoors in its original container. This product can be applied on damp or dry surfaces; however we recommend testing the sealer before applying over your entire chimney crown for best results. We offer 100% satisfaction guarantee: if you’re not happy with this purchase for any reason, MasonryDefender will refund every penny – no questions asked!

Pros

  • No adhesion to asphalt roofing shingles or EIFS/stucco systems.
  • Self-leveling and brushable for easy application.
  • 100% satisfaction guarantee.
See also
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Cons

  • The product comes in two colors – tan for new construction applications and black for mending cracks already present in the crowns before applying this product over them.
  • This adhesive provides superior adhesion even under tough environmental conditions like high wind up to 111 mph (50 m/s).
  • Cures within 24 hours at room temperature (70°F) but can only be applied on damp or dry surfaces.

Recommended?

Yes, it is a great product that helps fix cracks in chimney crowns and prevents masonry from leaking.

CHIMNEYRX Brushable Chimney Crown Repair

CHIMNEYRX Brushable Chimney Crown Repair, 1 Gallon
  • Fast-setting, Flexible Coating that Seals and Protects Chimney Crown Tops - Repairs Cracked Chimney...
  • Stops Chimney Water Leaks & Repairs Chimney Crown Cracks
  • Specifically Formulated to Repair and Protect Fireplace & Chimney Crowns from Water Intrusion
  • Covers Approximately 40 Square Feet per Gallon
  • Easy to Apply With a 3 Inch or 4 Inch Paint Brush, & Cures in 2-4 Hours

Product Description

This product is designed to work on brick, stone and mortar chimneys. It does not take the place of a traditional crown but rather makes it better by sealing cracks that are formed in these types of structures. The main ingredients are silica-silane which allows for flexibility as well as durability when exposed to heat or water stressors.

This sealer provides an additional barrier against weathering while maintaining its integrity over time thanks to its permanent nature. It is also easy to use by being brushable.

Pros

  • It can be used on brick, stone and mortar material types.
  • It works as an additional barrier against weathering while still being durable over time through its permanent nature.
  • This product is easy to use because it’s brushable.

Cons

  • It can be used on brick, stone and mortar material types.
  • It works as an additional barrier against weathering while still being durable over time through its permanent nature.
  • This product is easy to use because it’s brushable.

Recommended?

This product is designed to work on brick, stone and mortar chimneys.

It does not take the place of a traditional crown but rather makes it better by sealing cracks that are formed in these types of structures. The main ingredients are silica-silane which allows for flexibility as well as durability when exposed to heat or water stressors. This sealer provides an additional barrier against weathering while maintaining its integrity over time thanks to its permanent nature. It is also easy to use by being brushable.

CrownCoat Brushable Sealant

Sale
CrownCoat Brushable Sealant (2 Gallon, Buff Gray)
  • Fast Setting, Elastomeric Chimney Crown Coating Forms Waterproof Barrier!
  • Cures in 2 - 4 Hours & Covers Approximately 40 Square Feet Per Gallon
  • Solvent-Free Compounds & Environmentally Friendly!
  • Fifteen-Year Warranty Available

Product Description

CrownCoat Brushable Sealant is a one-component, 100% solids epoxy polymer for use in sealing and protecting chimneys against rain penetration. It can be used on masonry block or natural stone where the surface does not need to be sealed from the inside of the structure. Crowncoat provides excellent adhesion, flexibility and weathering properties when applied at temperatures above 50 degrees Fahrenheit (50 F).

This product is suitable for exterior applications only and should never be used in horizontal areas such as floor joints or expansion joints that require joint movement due to their design characteristics. In addition, it isn’t recommended if you plan to apply any type of mortar decoration over top of it since they typically won’t bond properly with this coating. This product is available in buff gray, almond and white.

Pros

  • Provides excellent adhesion to various surfaces.
  • Resistant against weathering and UV exposure.
  • Low odor compared to other products in the market, making it safer for use by homeowners.

Cons

  • Expensive solution when you factor in cost per square foot of application area versus how much material is needed to cover that same amount of space with a different sealant or coating product on the market today.
  • Doesn’t perform as well as some competitors’ brands at protecting chimneys from rain penetration so you may need something stronger if your home experiences extreme rainfall situations very often where water runs down your interior wall into the base of your exterior foundation walls or through cracks around your fireplace/chimney flue.
  • Not recommended for use in horizontal areas, such as floor joints or expansion joints.
  • Can’t be used to apply mortar decoration over top of it because they won’t bond properly with this coating.

Recommended?

This product is recommended for use by homeowners who want to install a durable chimney crown sealant around their fireplace and/or flue. It’s also suitable for commercial masonry projects such as building exterior walls, fireplaces or other areas where you plan to apply mortar decorations over top of it because they won’t bond properly with anything else.

Keep in mind that if your home experiences extreme rainfall situations very often where water runs down your interior wall into the base of your exterior foundation walls or through cracks around your fireplace/chimney flue, then CrownCoat Brushable Sealant may not provide enough protection against rain penetration so you should consider using something stronger instead.

See also
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Buyer’s Guide

Chimney Crown Sealers are used to protect the chimney crown from water, ice buildups and moisture. They also help strengthen the mortar joints on top of your masonry fireplace or wood stove. Best Chimneys Crown Sealing products available in semi permanent (epoxy) or temporary varieties (silicon).

– Use a brush applicator for small projects such as repairing cracks and gaps around concrete stucco chimneys. For larger jobs like resurfacing brick surfaces use aerosol cans – make sure you shake it well before spraying! Make sure that there is no wind when applying sealants so they don’t get blown away. And always remember wearing a mask and gloves.

What is a Chimney Crown Sealer?

A chimney crown sealer is a protective coating that can be applied to the top of your existing chimney. Chimneys are constantly exposed to water, humidity and extreme temperatures. These elements will weaken your masonry causing it to crack or deteriorate over time which means you may need leaks repaired or even entirely replaced altogether if not fixed immediately.

There are many reasons why you should use this type of product on an annual basis; but the main reason is because it prevents anything from penetrating your flue (the area where smoke escapes above roof level) or waterproofs the entire structure ensuring dryness within for years to come!

What is a chimney Crown?

A chimney crown is a metal cap that covers the top edge of your masonry fireplace or wood burning stove. The crown helps to prevent rain, snow and debris from entering through this opening in your home’s structure.

It also serves as a protective barrier for the entire body of the chimney where all sorts of cracks might appear over time due to natural wear and tear caused by environmental conditions like extreme temperatures or humidity levels changing throughout each year. These changes can lead to leaks which eventually damage other parts inside too!

If you suspect water has already begun leaking into areas within your building then it may be necessary to replace not just the crown but rather opt for an entirely new installation instead since there are many problems with

Types of Chimney Crown Sealers

There are two primary types of chimney crown sealers: tar and silicone. Tar seals the top layer of bricks, whereas silicone forms a stronger bond as it penetrates deeper into brick pores. It is important to note that if your home was built before 1930, you cannot use silicon adhesive; this is because older homes were made with clay-based brick mortar which will degrade when exposed to high temperatures or moisture (it may also be possible that they used asbestos).

Benefits of using a Chimney Crown Sealer

  • Keeps your chimney in top condition by preventing water damage due to weathering, cracking and corrosion. Water infiltration through the crown is one of the most common causes for early deterioration of a masonry fireplace or wood stove.
  • Increases the life span of your chimney. Chimneys that are in good condition will ensure that you get maximum performance out of your heating appliance, saving you money on fuel costs and minimizing stress to both fireplace bricks and mortar joints.
  • Maintains effective draft for proper operation by sealing gaps around the crown area where negative pressure is created when pulling air up through a masonry or metal chimney flue. This helps prevent exhaust gasses from leaking into living quarters which can happen when there’s an inadequate seal between interior finishes (drywall) and exterior surfaces built with stone/brick veneers or stucco. Many times venting gases indoors has caused health concerns due to carbon monoxide poisoning being a silent killer.
  • Prevents the accumulation of creosote and soot within flue tiles, which can cause blockages in your chimney system.

There are many benefits of using a chimney crown sealer to prevent water damage, prolong the life span of your fireplace or wood stove and maintain effective draft for proper operation.

How to choose the right Sealant for your Chimney Crowns?

Chimney crowns are the uppermost portion of your chimneys. This is where it starts to become exposed, and most importantly, this is also where rainwater or snow can accumulate if not properly sealed. Crown sealants vary in size, color tone (matte vs shiny), texture type (smooth/rough) and durability; however they all offer a good amount of protection against water intrusion.

The best way to choose one for you would be depending on how much exposure your area gets from rainfall or snowfall as well as what material make up your roofing system.

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Before you buy a sealant, it’s important to understand what type of chimney crown you need to be sealed properly with an elastomeric material that won’t crack or peel over time. It is also vital to consider how much exposure your area gets from rainfall or snowfall as well as what makes up your roofing system before purchasing one. Furthermore, most companies offer lifetime warranties on their products; but some only cover the product itself while others include labor cost in case there is damage caused by installation error (such warranty can save you hundreds if not thousands of dollars in case there is a need for repairs).

The Best Sealant for your Chimneys (the Winner)

Chimneys that are made of clay, concrete or metal can be covered with different materials. However, if you want to cover your chimneys using the best material then feel free to use asphalt sealers because they work like magic and protect your chimney for many years.

Your chimneys should be protected from the elements of nature including water, heat and air. These are very important for your chimney because it helps to prolong its life.

You may wonder why you need a sealer. Well, if there was no requirement to use sealers then bricklayers would not have used them while building your home’s chimneys in the past centuries! Chimneys can collect rainwater inside them which is known as rain leakage or rain downdrafting. It happens when moisture penetrates through cracks on mortar joints that lead into your fireplace’s flue passages – this way moist air gets inside and condensates (becomes liquid) at high temperatures leading to wet rot damage over time due to corrosion by acidic moisture. Rain downdrafting is the primary reason for expensive repairs of your fireplace flue system or replacement of chimney liner after a few years when sealers are not used to protect it from outside elements.

How to Use Chimney Crown Sealer on Masonry Chimneys

This article will provide you with some tips on how to use chimney crown sealer on masonry chimneys. This is a two-step process of using the product and it should be done at least once per year for maximum effectiveness. The first step is cleaning your fireplace by removing any dirt or debris that may have fallen into it from above, especially around where the flue meets the top of the firebox. You want an open area about three inches wide between this opening and before connecting to anything else below…

Environmental Protection

Before you buy a chimney crown sealer, consider the environmental impact of your choice. Those who are concerned about being green should look for products that have little to no hazardous chemicals in them. They also shouldn’t contain VOCs (volatile organic compounds) because these can contribute to smog pollution and global warming. While it may be harder to find environmentally friendly options out there, they will prove worth the search over time as they do not damage our planet like other types of materials would if used repeatedly on many chimneys.

Safety Tips

  • Do not use the sealant on a hot chimney. It will be too hot to properly apply and cure. Some manufacturers recommend that you wait at least 48 hours after lighting your fire before applying their sealants. This waiting period allows the heat from the fire to dissipate (cool). If it is still warm, it could cause problems with application or curing of the product.
  • You may want to wear gloves when using these products because they can irritate skin if handled directly for an extended time without protection. You should also avoid inhaling any fumes coming off of them while working in confined spaces such as small rooms, rooftops/chimneys, or basements. Doing so could cause irritation to the eyes, nose and respiratory tract as well as headaches or nausea.
  • Do not use any oil-based sealants around your chimney. Oil from these products will contaminate a wood burning fire potentially causing it to smoke excessively when lit until all residual oil burns off outside of the fireplace opening. In addition, if you have an insert with glass doors in your home it is recommended that you do not use this type of product on them because they can interfere with operation or viewing through those panels due to their obscuring properties similar to applying something over a window pane for privacy concerns blocking light transmission and vision completely.
MasonryDefender Chimney Crown Sealer - Brushable Sealant Fixes Cracked Chimney Tops & Prevents Chimney Leaks
  • Seals and Waterproofs Chimney Crowns - Stop Water Leaks Fast With This Elastomeric Sealer Designed...
  • Permanently Flexible Sealant - Won't Crack or Chip Over Time, Stays Flexible
  • Long Lasting Sealant Helps Prevent Chimney Leaks - Lasts for Years
  • Easy to Apply With a Paint Brush - Simply Brush 2 Coats of Product On Chimney Crowns for Superior...
  • Great Coverage - Covers 20 Sq. Ft. per Half Gallon Container

FAQs

Why is my chimney leaking? Or why was the crown on my chimney replaced?

A properly constructed and maintained masonry fireplace or wood burning stove can last a lifetime. Like any other part of your home, however, they will eventually begin to deteriorate over time so it is important to maintain them with regular inspections and repairs as necessary. Chimneys are made of masonry, which is porous. Over time the elements can seep into these cracks and gaps creating leaks. A leaking chimney leads to water damage inside your home or building, so why not seal it? A crown has been replaced on my chimney because there was some sort of problem with it that needed fixing. If you’re wondering whether you need one installed on yours too then keep reading!

Do I need a chimney crown?

A properly constructed and maintained masonry fireplace or wood burning stove can last a lifetime. Like any other part of your home, however, they will eventually begin to deteriorate over time so it is important to maintain them with regular inspections and repairs as necessary. Chimneys are made of masonry, which is porous. Over time the elements can seep into these cracks and gaps creating leaks.

A leaking chimney leads to water damage inside your home or building, so why not seal it?

Most Crowns on Masonry Fireplaces have been replaced because there was some sort of problem with that needed fixing first before trying this solution again later down the line when you’re ready for it. If you’re wondering whether or not to get one installed on yours too then keep reading!

Conclusion

The use of sealer is a cost-effective way to prevent the problem from recurring. Because it has been proven that chimney crowns can crack and leak, this method may be one of your best options for providing an extended life span for your stove or fireplace insert.

When choosing a product, consider what type you want: silicone or tar-based products are equally effective, but some homeowners prefer one over the other depending on their needs. Silicone is ideal if you have pets as it won’t leave any stains on clothing or surfaces around the chimney itself. In addition to sealing cracks in mortar joints, this substance will also keep out insects and rodents – making sure that no animals choose these spaces as homes.