Killeen Roofing: Article About Masonry Flashing
While masonry chimneys are not as common as they used to be, many homes in Texas still have these traditional features. A chimney made from bricks and mortar requires specialized maintenance in order to avoid serious problems such as disintegration of the mortar or a roof leak inside of the house. The main source of chimney leak problems is related to the flashing. Local Killeen roofing experts can help homeowners identify problems with the flashing on a chimney and repair it to lessen the risk of a leaky roof.
The leading problem with masonry flashing is rust. Rusting or corrosion takes place when the metal is exposed to pollutants, salts or other roofing materials such as tar. Decades ago, tarring around the flashing used to be commonplace. However, the chemicals in the tar can eat through the metal, causing it to oxidize and flake away. Rust quickly leads to a leaky roof around the chimney.
Another common concern with chimney flashing is improper installation. Putting the flashing on using the incorrect type of fasteners, using nails that are too short or affixing the flashing with nails that are made from an incompatible material are all examples of incorrect installation techniques. Not only could the masonry be damaged due to these issues, but the roof could also develop a leak.
The roofing experts at Tony's Roofing of Killeen can assist you with any questions regarding commercial roofing or residential roofing.
Flashing can also become loose due to different types of damage. An animal such as a squirrel or a bird may damage the flashing in its attempts to create a nesting area within the rooftop. A severe weather event like a hailstorm, wind storm or deluge of rain may also cause masonry flashing to become loose. Once loose, it is only a matter of time before the flashing totally falls off.
Property owners should also be concerned about the flashing at the top of the chimney. This is known as the chimney cap. The function of this cap is to prevent animals from gaining access to the house. It also works to keep rain, ice and snow out of the chimney. In chimneys that have been converted to gas burning fireplaces, the chimney hides the pipe vent flue. When flashing around the cap becomes damaged, toxic gases may make their way back into the living area of the house. Animals or precipitation may enter the fireplace, causing structural problems. Once water can get into the chimney, it can soak its way through the walls and into the plaster or drywall of the living areas.