Ways Water Ruins Your Chimney

Water Leak Drip  - Boston MA - Billy Sweet Chimney Sweep

Water should’t be allowed to seep inside your chimney. Many chimney-related problems start with water intrusion.

A lot of what we do for our clients at Billy Sweet Chimney Sweep roots in prevention. We sweep your chimney regularly to prevent excess creosote build-up and potential fire hazards. We install chimney caps to prevent rain and snow from diving right into your flue opening. We apply waterproofing sealant to your masonry to prevent excess moisture intrusion and moisture damage. We inspect your chimney system every year in part to prevent lots of things: draft issues, water or carbon monoxide leaks, even just to prevent small problems from becoming larger, more troubling and more expensive problems.

If it seems like a big part of our preventative efforts are focused on fighting water, you’re right, and there’s good reason for that. Left unchecked, moisture intrusion can cause extensive damage to your chimney system and the exterior and interior building materials around them.

Want a deeper look into how much trouble water can be? Here are three ways water can ruin (or at least significantly damage) your chimney:

“The Freeze/Thaw Cycle”

We all know that water expands when it freezes — you only have to forget you put a glass bottle of soda or beer in the freezer once to brand that messy lesson into your mind. Let’s think about how that can pertain to a chimney. Over years of being exposed to the elements, your masonry can develop some small cracks, whether that’s in your mortar joints or chimney crown, or in your bricks themselves. Moisture can make its way into those small cracks and sit there as the temperature drops. Once it reaches freezing temperatures, that water freezes and expands, straining against the masonry material — and more often than not, the ice wins, causing your masonry to crack, flake and crumble (called spalling). Over time, that can leave you with enough damage to need your whole chimney crown rebuilt, or extensive repairs on your chimney stack.

To avoid extensive spalling and other damage related to the freeze/thaw cycle, Billy Sweet Chimney Sweep technicians aim to repair all cracks and imperfections while they’re still small, whether that means applying a crown coat seal to your chimney crown or tuck pointing your damaged mortar joints. It’s one of the many benefits of keeping up with your annual chimney inspections — we’ll be able to keep on top of issues before they turn into huge hassles.

Corrosion And Rust

We know what happens when metal and moisture collide, too: dark red rust and crumbly corrosion. Since several components in your chimney system are made of metal, rust and corrosion are a concern too. If, say, your chimney cap is missing and moisture is making its way into your flue, it might repeatedly soak your metal throat damper — the part that lets you open and close your flue when you are or aren’t using your fireplace. A rusted throat damper can get stuck, or its plate can corrode and break. Rusted chimney flashing or chase covers can allow moisture to damage the interior of your chimney and your home too.

Chimney inspections are another important part of preventing this kind of damage. But beyond that, we also recommend that clients with galvanized metal components look at replacements made with more durable materials — like stainless steel and copper — which won’t have that kind of vulnerability to rust and corrosion.

Chimney Mold

Mold growth doesn’t really “ruin” your chimney, but it’s absolutely a problem you need to be aware of, since exposure to mold is linked to a variety of health issues, from respiratory problems and allergic reactions and triggering asthma episodes. Mold feeds on moisture, so if a leak develops in your chimney, mold can get a chance to grow and proliferate. Mold remediation is a two-pronged process: We need to get rid of the mold, and we need to repair the leak that was feeding the mold. Billy Sweet technicians are trained in the safe and proper removal of mold, and we can also find and repair any damage that’s leading to leaks. We can also talk with you about some preventative measures that can help you avoid leaks, like chimney waterproofing.

If you have any concerns or questions about water and its relationship with your chimney, we’re always here to help. Give Billy Sweet Chimney Sweep a call!

Dealing With a Foul-Smelling Fireplace

Fireplace smells and chimney odor problems may be attributed to a variety of different things.  Fireplace smells come from creosote deposits—a natural byproduct of burning wood—inside your chimney.  The odors are usually worse in the summer when the humidity is high, on rainy days, and/or when your air conditioner is running.  Our CSIA-certified chimney sweeps can help minimize your fireplace and chimney odors!

Summer is a time when we get a lot of calls about smelly fireplaces. Let us help you get rid of the stink.

Summer is a time when we get a lot of calls about smelly fireplaces. Let us help you get rid of the stink.

The Culprit is Tucked Away Below the Surface

Creosote absorbs into the porous masonry construction inside your chimney, embedding the fireplace smell deep beyond the masonry’s surface.  A chimney sweep will remove the surface buildup of creosote to limit the possibility of a chimney fire; however, the odors that have absorbed into the masonry itself will remain.  So how can you keep the smell out of your house?  The answer to this question should come as no surprise.

Negative Pressure Problems

The real problem is air coming down the chimney, a symptom of overall pressure problems.  Normally, as long as the draft is working correctly and there is no negative airflow in the home, the smells should remain in the chimney.  In the event that negative airflow becomes a problem, the air brings the inner fireplace smells and chimney odors right along with it as it comes down your chimney.  It is likely that your chimney is just the victim of a negative pressure problem.  A quick solution to the negative air pressure is to crack a window at all times to let the pressure change through the window rather than the chimney.

Dampers to the Rescue

For a more permanent approach to keeping the smell that’s exuding from your fireplace and chimney’s masonry in the chimney and away from your nose, you need to limit the amount of air that’s able to come down your chimney in the first place.  Closing your throat damper is a good start, however, the metal-on-metal closure is far from airtight.  A top-sealing damper can help to minimize the airflow and accompanying fireplace smells from coming down your chimney.  In addition to limiting the airflow problems, the top-sealing damper will keep rainwater and moisture out as well.

There’s never a bad time to get a chimney inspection.  The professionals at Billy Sweet Chimney Sweep are available all year round to inspect and clean your chimney.  Don’t allow these smells to become a problem for you.  As soon as you first notice unpleasant odors coming from your fireplace, nip it in the bud.  Our offices are opened from 7am to 5pm on weekdays, and we have a 24-hour live messaging system in place—no matter what day or time, we have a technician on-call to help you with your needs.  Give us a call today!

Watch Out for Chimney Mold

Stop the growth of molds in your chimney by simply preventing water from intruding inside of it. Have your chimney waterproofed.

Stop the growth of molds in your chimney by simply preventing water from intruding inside of it. Have your chimney waterproofed.

What is fuzzy and always found in places where it doesn’t need to be? No, not your family pet, but mold. Mold is extremely dangerous and can grow anywhere. Too often homeowners learn that mold is a problem in their home, and could have been prevented with proper maintenance. However, if it is found in time, it can be removed. To learn more about keeping your chimney mold free, call the experts at Billy Sweet Chimney Sweep. These guys can help with sweeps, inspections, and many other fireplace needs!

What is chimney mold?

The mold found inside of your chimney grows the same as any other type of mold you know of.  Mold can grow in less than two days from a spot of standing water.  If chimney mold is left long enough, it can spread into the foundation of your home.  Because mold comes in a variety of textures and colors, you may not notice it when you see it.  This is why it is important to have a Chimney Safety Institute of America (CSIA) certified professional come do your annual sweep and inspection.

How do you get rid of chimney mold?

Once you find out where the mold has begun to grow, you can begin to remove it. Chimney technicians will start by checking for cracks in the chimney’s structure and where flue precipitation collects. They will also do a controlled water test where they spray water on the chimney in increments so they can see where it absorbs. If your flashing has become damaged, there can also be water leaks. Flashing is the group of metal strips that form layers where the chimney and roof meet. Overtime, this can become loose, but can be repaired by your technician.

Even though you can technically remove a spot of mold less than three square feet by yourself, it is still recommended that you call a technician for safety. If it is not removed properly, it can continue to spread. Also, it can cause severe rashes if it comes into contact with your skin.

How can you prevent mold from growing in my chimney in the future?

You cannot prevent mold from growing completely, but you can reduce the chances by having your unit waterproofed. Your technician can have this done in a day if you only need one coat. However, if you live in a wet area, it is often recommended that you have two. This should be done on a dry day for the sealant to have top performance.

The Bird that Loves Your Chimney

Chimney Swifts

These birds are protected by federal law, don't attempt to remove them yourselves.

These birds are protected by federal law, don’t attempt to remove them yourself.

You may have heard chattering, fluttering, and other noises coming from your chimney and wondered, “Are there birds nesting up there?” Quite possibly, chimney swifts have taken over your chimney as their new home. According to the Driftwood Wildlife Association, chimney swifts are fascinating, adaptable birds who learned to nest and roost in chimneys when their native habitat of large hollow trees in forests of North America were cut down. However, if a family of chimney swifts does nest in your chimney, you should be aware that, according to the Humane Society of the United States, these birds are protected by the Migratory Bird Treaty Act, and removing or destroying nests with eggs or young can result in fines and penalties. Fortunately, the CSIA-certified technicians at Billy Sweet Chimney Sweeps are familiar with the regulations and habits concerning chimney swifts and can work with you on scheduling your annual chimney sweep around the life cycle of the chimney swift as well as fit your chimney with a customized chimney crown to keep the chimney swifts out, if you would rather not share your chimney with these birds.

Protecting These Birds

The Driftwood Wildlife Association formed a special project to promote the conservation of chimney swifts, and they provide valuable information to homeowners through a website, chimneyswifts.org, featuring articles like “Being a Good Chimney Swift Landlord.” With invaluable tips for those who do not mind sharing their chimney with these birds since they do only nest during the summer season, they recommend having your chimney swept in mid-March to have all of the creosote build-up removed, as this makes it impossible for the chimney swifts to build their nests to the walls without danger of falling. The birds make their return from South America after their wintering is over, and as they are migratory, they tend to return to the same nesting area. Like the Humane Society, this article stresses the importance of chimney swifts being protected by federal law and warns against chimney sweep businesses who illegally remove chimney swift nests and eggs. Be wary of companies who advertise “bird removal,” as this is a blatant violation of state and federal laws that protect migratory birds. Instead, choose a company like Billy Sweet Chimney Sweeps, who is active in promoting chimney swift conservation, to perform your annual chimney sweep.

Proper Removal of Their Nests

While the noises of the baby birds chirping for food can be shrill and annoying, they will not last forever. Just keep in mind that this is only temporary, and after that short period, you will rarely know the chimney swifts are there. However, be sure your damper is completely closed to keep them from flying into your house. The nests of these birds are small, cup-shaped constructions of small twigs glued to chimney walls by the birds’ saliva. Too small to be a fire hazard, you will still need to contact Billy Sweet Chimney Sweeps to remove the nest after they leave in the fall. This is needed to remove bird parasites, and since chimney swifts tend to return to the same nest, you do not want them to try to use the old nest as it will be unstable and probably collapse.

If you would like more information about chimney swifts, contact our knowledgeable staff at Billy Sweet Chimney Sweeps. We are happy to answer any questions you may have as well as schedule a chimney sweep for you or a consultation about chimney crown repair.