no chimney cap, protect your chimney from water, chimney flue care

April showers bring May flowers, right? Well, they can also bring leaky chimneys! If you don’t have a chimney cap, you’re in for a wet time. You’ll start seeing symptoms of leaks during spring and summer, and even chimneys that’ve never had problems before can leak.

Your Chimney Without A Chimney Cap

Chimneys are complex structures and are always exposed to the weather. They aren’t designed to go without chimney caps, but not everyone knows this. Because chimneys are always exposed, rain water, leaves, feathers, and all sorts of things can fall into them and build up or cause damage.

The entrance of rain into your chimney may not sound very dramatic to you. But when the masonry and other components in your chimney degrade and lose stability, or lose fire proofness, it becomes dramatic. Wetness can cause spalling and crumbling brickwork, and things like leaves that fall into your chimney are a fire hazard.

Why Get a Chimney Cap?

The top reason is to prevent damage to your home. To prevent water coming in, part of a chimney cap acts like an umbrella, and a screen section prevents the debris from falling in or sparks from floating out.

Don’t worry about a chimney cap affecting your draft. If your chimney cap has sufficient clearance and you keep it clean, it will either not affect your chimney draft or improve it. When wind blows, the convex shape of the cap creates a slight vacuum at the top of the flue so your chimney should draw better with the cap in place. Some chimney caps are even specifically designed to improve chimney draft!

If you see water coming in, it could also be due to:

Flashing

If your chimney flashing starts to wear down, water can get in. Flashing is a tight strip inside your chimney that seals the seam between your roof and chimney to prevent water coming in. If the flashing is damaged or loses its seal due to age or wear and tear, water will get through the gaps. This can in turn water damage to the roof, chimney, ceilings and walls.  Metal flashings are preferred over mastic flashings.

Incorrect Chimney Cap

Water can get in if the chimney cap doesn’t fit well. Without a chimney cap that fits, the fireplace and flue are completely exposed to water from the rain. An ill-fitting cap is barely better than no cap at all.

Masonry Damage

Because your chimney is directly exposed to rain, the masonry components will deteriorate over time. Water can cause bricks to spall and crack (letting in water), in addition to making your chimney look unkempt.

You may know your chimney is leaking because you see visible water in the flue or fireplace. But because of the complexity and size of many chimney systems, leaks can easily go undetected for a while. You might not even know there’s water damage until significant damage has already been done.

To prevent chimney leaks, it’s best if you call in a professional for annual chimney sweepings and inspections. We’ll be able to detect any damage so that you can get it fixed before the chimney starts to leak!

routine chimney care, fireplace care, routine maintenance, firebox

 

Do you know how to care for your chimney? If you’re wondering what I mean by that, you probably don’t. Which is why you need to learn basic chimney care! As your go-to heating option in the colder months, you’ll want to make sure it’s ready to warm up your home when the weather starts to get chilly. The truth is, not many people think about their chimney much, which is why problems arise when they want to use it. To avoid these problems, here are some basic tips on home chimney care:

 

1.     Always Leave Some Ash

Although you’ll want to clean the firebox monthly when it’s in use, a clean firebox retains about an inch of ash. This allows your fires to stay strong and retain heat easier.

 

2.     Hire A Chimney Sweep

For safety, you’ll want to call a chimney sweep to not only clean it, but also provide an inspection of the fireplace and chimney. They’ll look for any damage or evidence of creosote, which is a tar-like buildup. Do this at least once a year before you begin using the fireplace again.

 

3.     Clear The Area

As part of basic fire safety, you’ll want to keep the fireplace area clear for the entire fire burning season. Not just while a fire is burning. Any furniture should be at least 36” away from the fireplace to avoid any sparks igniting it, which can be a fire hazard. No flammable decor or plants near the fire.

 

4.     Ensure There’s A Chimney Cap

You’ll want to make sure that your chimney has a cap to prevent any birds from building nests inside or any animals from climbing it. Most importantly, it keeps the flue and fireplace dry, which prevents the breakdown of the materials your chimney is made of.

 

5.     Make Sure That The Damper Is Closed

The damper is the hinged flap that’s above the fireplace and it controls how much air passes through the chimney. You’ll want to leave it open when a fire is on, but close it when it’s out to prevent any heat loss inside your home.

 

Most of us know the beauty of fires through the ones we see in our fireplaces. As we’ve seen wild fires burn throughout California, many of us have been reminded of the real dangers of fire.  The fire within a fireplace gives your warmth and comfort, and the chimney carries the gases from the fireplace and out from its top, providing you with safety in your home.

 

However, many chimneys have underlying problems that can lead to fires inside the chimney. Some of them are visible as they come out the top but many of them are hidden. Sometimes a slow-burning fire is hidden somewhere inside the chimney, without enough fuel to make it grow noticable. Even though they may not be visible, these fires are very hot and can damage the chimney’s infrastructure.

 

chimney fire danger

 Warning Signs

There are generally three signs of a possible chimney fire even when you may not see it. First, you might hear a loud sound. Second, you might see an unusually high amount of thick smoke. Lastly, you will notice a very strong, hot smell.

 

Fuel

A key fuel for these fires is creosote. What is that? It is basically the build-up that covers the inner lining of your chimney. When using a fireplace, certain products are created as a result of fire. Chimneys are designed to take them out through the top. As they go to the top, the cooler temperature hitting these items causes condensation which creates a flaky residue on the inner lining which is highly flammable. This is creosote.

When the quantity of the creosote gets large enough, it can fuel a chimney fire. The main causes for such a build up is a restricted air supply, unseasoned wood, or cooler than normal chimney temperature. These are all preventable with regular chimney inspections and cleaning.

 

Why does it matter?

The high temperature of these chimney fires can damage the interior lining of the chimney, melt mortar, crack tiles, or even destroy prefabricated chimneys. Get your chimney inspected and cleaned each year. If you have questions or want to have your Bay Area home inspected, please contact Sal at the Irish Sweep.