How To Tell If It’s Time For Masonry Repair

It’s raining, it’s pouring, my bricks are crumbling. Bricks are made from porous materials. While they may seem resilient to even the harshest climates, they are actually more susceptible to water damage than many people realize. During the kiln-drying process, moisture is removed from the clay mixture, making the bricks suitable for building. However, as the chimney ages, exposure to rain, snow, ice, hail, and even summer heat can weaken the masonry, leading to cracks. When water seeps into the bricks, they absorb it like a sponge. As more water accumulates, the interior of the bricks softens, causing them to flake, crumble, or even fall off the chimney.

Signs Your Chimney Needs Masonry Repair

Recognizing the early signs of masonry issues is important in preventing your chimney from deteriorating. Here’s how you can tell if it’s time for masonry repair before your chimney starts to disappear.

Efflorescence

Efflorescence, a white stain on the brick surface, is a clear sign of moisture absorption. While it may seem like a cosmetic issue, it often indicates more serious masonry damagei or moisture intrusion. Conducting a thorough inspection is necessary to identify and repair these issues. Waterproofing the chimney can help prevent further deterioration.

Mortar decay

Mortar, the cement-like material between the layers of bricks, often decays first. If you notice unevenness or gaps in the mortar joints, it may be time for tuckpointing. Tuckpointing is a type of masonry repair that involves removing and replacing the deteriorating mortar with a fresh, durable mortar compound to restore the structure’s strength.

Missing bricks

Chimneys with severe masonry damage may have damaged, loose, or missing bricks that require immediate attention. Spalling, or crumbling bricks, not only allows water to enter but also reduces heating efficiency. Additionally, masonry damage significantly increases the risk of fire and health hazards.

Crown damage

Look up, and you will notice a cement slab with a 3″ to 6″ overhang above the uppermost bricklayer. This is the chimney crown. If you see cracks or pieces of the edge missing, it’s time for masonry repair. Our masons may recommend sealing the cracks or rebuilding the crown depending on the damage.

Common Causes of Masonry Damage in Pennsylvania

Freeze-Thaw Cycle

Pittsburgh experiences a climate where sub-freezing temperatures in winter are common. When the absorbed water in the brickwork freezes, it expands, exerting pressure on the surrounding masonry. This repeated freezing and thawing (expansion and contraction) can lead to the gradual breakdown of the material, causing spalling, where the bricks are flaking, peeling, or crumbling off.

Faulty or damaged flashing

The metal flashing that seals the space between the chimney and the roof is critical for preventing water from leaking into the house. If the flashing is bent, loose, or improperly installed, it can create a pathway for water intrusion.

Humidity

Humidity can also contribute to moisture-related problems. Elevated moisture levels within the chimney can encourage the growth of mold and mildew and, when combined with creosote buildup, can lead to unpleasant odors and even health-related issues.

• Other contributing factors to masonry chimney damage in Pittsburgh include:
• Chimney liner condensation
• Poor original construction or the use of substandard materials
• Lack of regular maintenance
• Animal activity

By addressing these masonry issues through regular inspections, timely repairs, and waterproofing, you can ensure the safety and efficiency of your brick or stone masonry chimney.

Expert Masonry Repair Near Me

Advance Chimney Sweeps is Southwestern Pennsylvania’s most trusted chimney company, offering a range of convenient services including masonry repairs, inspections, leak detection, sweeping, and appliance installations. For all your fireplace, insert, and stove needs, contact Advance Chimney Sweeps today. Our certified professionals serve communities throughout Greater Pittsburgh, including Connellsville, Mars, Moon Township, and Morgantown WV. Visit our website to schedule an appointment today! Ask about our convenient financing options.