One of the most vital parts of a chimney is its cap. This component serves one primary purpose, which is protecting the open flue and chimney crown. Without a chimney cap or with a damaged one, your chimney can be exposed to excess rain, ice, and snow, as well as let all manner of pests through. So, when your chimney cap starts to degrade, you need to replace it, but up on top of your roof, it can be difficult to inspect, so let’s discuss how you can tell when your chimney cap needs to be replaced.
You Find Water or Debris in the Firebox
When you find water in your firebox, you know there is likely a problem. Your chimney cap’s biggest job is keeping water and debris from entering the chimney. Once water makes it in, it can cause the masonry to soften, leading to considerable damage with expensive repair bills.
If this happens, you will need to schedule an inspection of your chimney cap, and if it is damaged, repair or replacement will have to be performed quickly. If this wasn’t the cause of the water or debris, an inspection to find where it got in from would be in order.
Your Chimney Cap is Missing
A well-installed chimney cap should be tightly affixed to the chimney crown, but with a powerful enough storm or a poor installation, it is possible for it to loosen and come off. So, if you find your chimney cap missing, you know a fast replacement is in order.
Heavy Rust Buildup
Your chimney cap is a tough component, but it is also exposed to constant acidic soot, intense heat, frigid cold, and, worst of all, constant moisture. This can weaken protective coatings and lead to rust buildup.
As the metal rusts, this can leave it vulnerable both to leaking and a weakened structure that can lead to small animals forcing their way through and becoming stuck in the flue. So, if you notice excessive rust, it is time to replace your chimney cap.
You Notice Downdrafts
Windy days can bring heavy downdrafts, but your chimney flue is designed to keep these from making their way down your chimney. Without a functional chimney flue, a sudden downdraft can blow ash and soot out of your chimney and all over the surrounding room.
If you experience such a downdraft, then a damaged or missing chimney cap is typically the cause. An inspection is in order and likely a replacement as well.
Final Thoughts
A functional chimney cap is critical for a functioning chimney as well as for minimizing repairs and ensuring your chimney’s safety and structure for years to come. This is why if you notice any of these issues with your chimney flue, it is crucial to schedule a professional inspection of your chimney cap as soon as you discover them.
Contact Us
If your chimney crown needs to be inspected, repaired, or replaced, contact North Shore Roofing. Our professional roofers have been serving homeowners for more than thirty years. Call us at (978) 977-3816 and connect with us on Facebook.
