Do You Have the Right Chimney Crown?

Not sure what a chimney crown is or why it's important? Learn why below!

Not sure what a chimney crown is or why it’s important? Learn why below!

In the past, we have had customers come to us to fix what other companies have previously repaired. Not only does this cost them far more money in the long run, but it also typically means their chimney has been further damaged. When it comes to chimney repairs, the lowest bid does not always equal the best service.

What are chimney crowns?

A chimney crown, sometimes known as a chimney wash, is the slab that covers the top of the chimney structure. Chimney crowns are important because they protect both the interior and exterior chimney structure from the elements. An improperly installed or damaged chimney crown can expose the interior of the chimney and fireplace to rain, snow, and other moisture while simultaneously exposing the brick and mortar of the chimney itself.

What to look for in a chimney crown

Although they can be difficult to inspect from the ground, there are several hallmarks of good chimney crowns that homeowners should be aware of. The first is the overhang, or drip ledge. To prevent water from flowing directly onto the masonry of the chimney structure, chimney crowns should have a drip ledge of at least 2 to 2.5 inches on all sides. These overhangs serve as miniature gutters, protecting the brickwork and mortar from direct exposure to rain and snow.

Another detail to look for is the material the chimney crown is made of. While regular masons may be qualified to lay bricks and mortar for a chimney, the same materials should never be used for the chimney crown itself. Because brickwork and mortar are porous materials, they should never be used to construct a chimney crown. If your chimney crown is made of mortar, it will quickly crack and deteriorate due to exposure to the elements. Instead, crowns should always be constructed from solid metal, stone, or concrete slabs.

Chimney crown supporting structures

While not technically part of a chimney crown, chimney flashing is an important structural element that also helps prevent moisture from entering a chimney structure. Even with a properly sized overhang, flashing is an additional layer of protection against the elements. Often made of metals such as aluminum, galvanized steel, or copper, flashing is designed to create a waterproof seal between the chimney and the roof itself.

However, flashing is often improperly installed which may cause the waterproof seal to be broken. Roofers often use too many nail holes, creating tiny crevices from rain and snow to gain access to the brick and mortar underneath. Likewise, over time the flashing may become loose or damaged, especially in areas prone to severe weather.

At Jack Pixley Sweeps, we can do more than just clean and inspect your fireplace. Our masons are specially trained to craft chimney crowns that are constructed with extreme attention to detail. While our services may not always be the least expensive, our chimney crowns are guaranteed to protect your chimney and last for years to come.

Why You Should Be Concerned About Water

Contact us to keep your exposed masonry resilient to water

Contact us to learn more about how to protect your home’s masonry

Proper chimney care is something that’s often neglected by a lot of homeowners. What they don’t realize is the importance and benefits that a properly maintained chimney can bring to your home. In our many years of experience here at Jack Pixley Sweeps, we’ve been asked more times than we can count about the effects water can have on one’s chimney. So here’s a short guide that might be really helpful.

Water is your chimney’s enemy

According to the Chimney Safety Institute of America, water damage is the number one most common cause of majority of the reported chimney damages. Direct contact with water or even minor water penetration can increase the likeliness of damaging one or several of the materials in your chimney (i.e. metal, brick, stone, cast iron etc.).

The following are examples of the damage in your chimney and home’s interior and exterior structures caused by water penetration:

  • Water stains in the ceiling and wall
  • Rusting of the damper assemblies
  • Decaying of the exterior mortar
  • Cracked or damaged flue lining system

Water damage: Classified

There are three significant types of water damage that may occur in your home. Identifying which of the three is important in repairing and preventing the recurrence of the same damage.

Spalling – this type of water damage refers to the chipping, flaking or crumbling of your masonry chimney as a result of water penetration or contact. Your chimney would show flaking on the surface of the bricks and chimney crown. This is usually caused by the freeze/thaw cycle of water wherein the moisture present in the chimney area would freeze when there is a significant drop in temperature, and would begin to thaw again once temperature starts to go up.

Rust or Corrosion – this usually affects the metal parts and materials used for your chimney (such as the chimney flashing and cap). This is the first thing that chimney experts look for during an inspection because this is one of the most common water damage out there.

Mortar Joint Damage – this part of your chimney is highly susceptible to cracking. Because of this, it is also one of the common places to absorb moisture. Moisture content with the ideal environmental conditions can be a breeding ground for molds which would pose a health risk to you and your family.

What are you still waiting for? Now that you know the damages that water may cause, you should give Jack Pixley Sweeps a call and have your home and chimney checked before it’s too late.

 

Common Masonry Repairs

Types of Masonry Restoration

Masonry materials are remarkably durable — it’s why we can go to Europe and see masonry structures that are still standing (sometimes standing strong) after hundreds and hundreds, sometimes thousands of years. It’s also why chimney professionals like Jack Pixley Sweeps have been using bricks, mortar and other masonry materials to build chimneys for hundreds of years too.

The truth is, though, masonry will degrade and sustain damage at some point. That damage can come from many directions, whether it’s a fire or seismic event or the simple but damaging wear-and-tear of rain, snow and other forms of moisture (including the freeze/thaw process, during which moisture makes its way into small imperfections, then expands with freezing temperatures and busts open the masonry from the inside out).

Still, in a lot of cases, masonry can be repaired or restored. And at Jack Pixley Sweeps and Masonry, we’ve been bringing minimally and majorly damaged masonry chimneys back to beauty and function since 1977. If your masonry needs expert attention, we can help.

Some Of The Masonry Restoration Work We Can Do For You

Whether you have a historic home with a historic chimney to match it or a nearly new chimney, Jack Pixley Sweeps and Masonry technicians can take care of the work you need — we blend modern tools, technology and processes with techniques that have carried through from the early days of our trade. Some of what we can do:

Repairing And Restoring Damaged Chimney Crowns

Your masonry chimney crown’s placement — horizontally, at the very top of the chimney, directly open to baking sun and pounding rain and collecting snow — means it has a key job, but takes a beating. Its role of diverting moisture away from your flue can’t be accomplished well when sun and rain make cracks or spalling masonry develop. We can bring your crown back to proper function, whether we’re dealing with small cracks or a major breakdown.

Refacing A Lackluster Or Damaged Fireplace

Over the years, your chimney needs repair and replacement just like other appliances. Here is some more information.

Over the years, your chimney needs repair and replacement just like other appliances. Here is some more information.

If your fireplace is showing its age — with stains or damage — or if you just feel its look isn’t working in your home, we can help. We specialize in fireplace front redos that can bring a freshened look or a totally different aesthetic to your fireplace, while ensuring that it functions as effectively and safely as it should. Talk to us about what you think your fireplace needs!

Rebuilding A Failing Firebox

Since it holds the fire itself, your firebox has to stand up to some serious heat, time and again. And if the masonry begins to weaken — crumbling bricks, cracked masonry — it’s not just an eyesore, but a danger.

If your firebox needs an overhaul, we can remove the damaged brick and replace it with strong, new firebricks and refractory mortar. When we’re finished, you’ll have a beautiful firebox that’s built with care, experience and attention to detail, so you can enjoy your fires with the peace of mind that comes with knowing you brought in experts to handle its rebuild.

Rebuilding Chimneys From The Ground Up

When chimney damage is too extensive to make repairs a safe bet, a teardown and rebuild is necessary. It’s an extensive process, but here’s the particularly good news that comes with hiring Jack Pixley Sweeps and Masonry technicians to handle the job: We use time-tested methods to construct our chimneys in a way that provides a beautiful look and vastly extends their service life. We’ll be glad to tell you more about the way we work and how it’s different — just tell us about your project, and we’ll tell you what we can do for you!

If you need masonry restoration work done, or just have any chimney care questions you’d like help with, give Jack Pixley Sweeps and Masonry a call. We’re always here for our valued clients!