How to Prevent Water Damage to Masonry Chimney

» Posted by on Mar 7, 2019 in Chimney Cleaners | 0 comments

Believe it or not, water causes more problems to your masonry chimney compared to fire. Just imagine. All the bricks as well as other materials which consist you house are secured by the eave and roof, all of those, except the chimney. As a matter of fact, your chimney basically sticks up above your roof, continuously exposed to all damaging elements such as freeze or thaw, snow and rain cycles. This is the reason why professional chimney cleaners Providence are needed for the regular maintenance of your chimney. 

 Masonry Chimney

Your masonry chimney is made up of several different metal and masonry materials such as cast iron, steel, tile, mortar and brick. All of these will suffer a quick deterioration which could be a result of a prolonged exposure to water. 

Masonry materials deteriorate fast when exposed to the thaw or freeze process in which water that has entered or made contact to the materials periodically expands and freezes, causing extreme stress. In addition to that, water in your chimney causes rust in cast iron and steel, destroying or just weakening the metal parts. 

Penetration of water or moisture can definitely cause exterior and interior damage to your masonry chimney and home which includes: 

  • Cracked fuel liner systems 
  • Decayed mortar 
  • Deteriorated central heating system 
  • Ruined wall coverings and rotten adjacent wood 
  • Rusted damper assemblies 
  • Deteriorated masonry or metal firebox assemblies 
  • Spalled and broken brickwork 

How to Prevent Water Damage to Your Home’s Chimney 

The following are some of the steps on how to prevent water damage to your home’s chimney:  

  1. Install Chimney Cap

Chimney caps are most likely to be the cheapest preventive measure which an owner can do in order to prevent water or moisture from penetrating your house that could eventually lead to chimney damage. Chimney caps are also called rain covers. Your chimney has one or more huge openings, called the chimney flue/s at the top which gather rain water and then funnel it directly to your chimney interior. A strong and well-patterned cap not just keeps the water out but also, it will prevent animals like birds from entering or nesting in your chimney. 

Furthermore, a chimney functions as a spark arrestor which prevents sparks from hitting on your roof or other combustible materials. 

  1. Repair or Even Replace a Broken Chimney Crown

Your chimney crown, or sometimes called the chimney wash, is one of the top elements of your masonry chimney. It seals and covers the top of your chimney from the liners of the chimney flue to the edge of your chimney. Most masonry chimneys are created with insufficient crown constructed from the usual mortar mix, similar mixture used in laying down of chimney bricks. Mortar isn’t designed as well as will not withstand several years of exposure to extreme conditions without deteriorating, chipping or cracking; any situations which allow water and moisture to enter the chimney. Aside from that, most mortar and sand crowns crack always at the time after the installation due to shrinkage. An appropriate chimney crown should be made of a cement-based cast and mixture. 

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