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Choosing the Best Chimney Cap to Prevent Water Leaks

One of your best defenses against water penetration and animal invasions of your chimney, a chimney cap sits on top of your chimney’s opening. With several different types of chimney caps available, how do you know which cap is the right fit for the flue of your chimney? At Weststar Chimney Sweeps, we are experienced with fitting all types of chimney caps, even customized caps, and we know the importance of proper installation. We would like to tell you a bit about the different kinds of chimney caps and what you should know about selecting the right kind for your chimney to prevent damaging water leaks.

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The main thing to consider when deciding which chimney cap is right for your chimney is the shape of your flue. Chimney caps come in different shapes to fit each type of flue. These shapes include:

ROUND FLUES

Whether you have a clay, masonry, or metal flue, you can find a round chimney cap that can either attach the the outside of the flue or slip inside the flue. Round chimney caps are made from an assortment of materials including copper, stainless steel, and galvanized steel. Some round flue liners require chimney caps that must be inserted inside the chimney flue, such as round flexible flue liners and round solid pack flue liners.

SQUARE AND RECTANGULAR FLUES

The most commonly shaped flue, square and rectangular chimney caps can be attached to the flue, or, if you have a chimney crown, there are chimney caps in these sizes that can attach to the crown. Made from the same metals as the round chimney caps, the Chimney Safety Institute of America (CSIA) recommends you choose a chimney cap constructed from a sturdy, durable, and rust- and corrosion-resistant material to ensure a long-lasting cap. For chimney caps that attach to a chimney crown, you will need to choose from top mounted chimney caps.

OVAL FLUES

Unless you have a custom-shaped oval chimney cap made for you by our technicians at Weststar Chimney Sweeps, you will need to look at rectangular shaped chimney caps that will cover the exterior of your flue.. When you look inside this type of cap, you can see how the corner tabs or interior ledges will accommodate oval flues.

There are other considerations other than preventing water leaks to think about when choosing a chimney cap. These include:

MESH SPARK ARRESTOR

To prevent animals from entering your chimney to take up a new residence and to keep sparks from flying out of your chimney and possibly starting a fire, your chimney cap should be equipped with wire mesh sides. Be sure the mesh openings are between ¾ to ½ inches in size to keep animals out, to contain large pieces of hot debris and ashes, and to allow toxic gases to escape.

COMBINATION OF A CHIMNEY CAP AND DAMPER

You can now find top sealing chimney caps that do double duty as a protective cap and as a damper. Perfect for new home constructions and for older chimneys in need of numerous repairs, the damper is located on the cap. When it is sealed closed, the air loss from your home is reduced by 90%. When the damper is opened, the wire mesh on the chimney cap protects your chimney from invading animals and prevents stray sparks from exiting.

Want to know more about the different types of chimney caps? Contact Weststar Chimney Sweeps today to talk to our expert staff about your many options.

The Three Levels of Chimney Inspections

Three Levels of Chimney Inspection - San Diego CA - Weststar Chimney SweepsTo become Chimney Safety Institute of America (CSIA)-certified chimney sweeps, our chimney technicians at Weststar Chimney Sweeps must pass an examination on the National Fire Prevention Association (NFPA) standard code 211, the standard for chimneys, fireplaces, vents, and solid fuel burning appliances. In this code, the NFPA developed three different levels of chimney inspections that all chimney sweep certified by the CSIA must strictly follow. Since the CSIA recommends an annual chimney sweeping and inspection, the organization also strongly suggests you should ask for the appropriate level of inspection for your chimney and venting system. To inform you of what each level involves to help you know which level to request, we would like to share with you an explanation of what happens during each chimney inspection level.

LEVEL 1

The simplest of the three levels of chimney inspection, ask for a Level 1 if your appliance or venting system have not changed and you are planning on using it as you normally have in the past. In this level of inspection, Weststar Chimney Sweeps will inspect all readily accessible parts of your chimney’s exterior and interior and all accessible parts of your chimney’s connection to the appliance. Checking for the soundness of structure and proper installation, our chimney inspectors will also verify your chimney is free from blockages and combustible creosote deposits.

LEVEL 2

Required when any change is made to your system, a Level 2 inspection examines changes in fuel type, changes to the size and shape of your flue, and changes to the heating appliance, such as when you have a fireplace insert installed. You must also request a Level 2 if you are selling or transferring your home and after building fires, chimney fires, earthquakes and tremors, and any weather-related event. Including everything performed in a Level 1 inspection, a Level 2 also examines the accessible parts to your chimney’s exterior and interior, including attics, crawl spaces, and basements. This level of inspection also addresses clearance from combustibles.

LEVEL 3 

If a Level 1 or 2 inspection reveals a hidden hazard that cannot be evaluated without special tools to access concealed areas of your chimney or flue, Weststar Chimney Sweeps will recommend a Level 3 inspection, which is the most detailed of the three levels of inspection. When necessary, certain parts of the chimney must be removed for the evaluation to be complete. Parts that may be removed include the chimney crown or an interior wall of the chimney. This is only required when access is needed to areas that are subject to the inspection. Also, during a Level 1 or 2 inspection, if our chimney inspectors feel a serious hazard is present within your chimney or venting system, a Level 3 inspection may be required to examine the entire chimney or venting system.

Have questions about the three levels of chimney inspection? Contact Weststar Chimney Sweeps to find out more about each level.

By Mike O'Mara on November 25th, 2014 | Tagged with: Tags: , , , | Leave a Comment