Flashing, Leak Repair & Tuckpointing / Repointing
Chimney Genie is experienced in all phases of roofing and is well versed on repairing or preventing leaks around the chimney areas. As a roof ages the seams around skylights, and chimney areas become worn and porous.
With new flashing or sealing agents we can prolong the life of these important seams. Our goal at Chimney Genie is to provide unparalleled service for all chimney related areas of your home. Many times leaks can from that allow moisture to enter the attic or interior walls. This will eventually cause significant damage to both the wood and the brick work of the chimney.
Please call us at the earliest sign of a problem. Many times these issues can be repaired quickly and inexpensively.
Water is actually more of a threat to a chimney than fire. While chimney fires are certainly a concern, water damage accounts for the majority of structural problems with masonry chimneys. Water will cause problems however it enters a flue as the moisture combines with sulphates deposited inside the flue as a result of combustion to form weak acids. These acids attack the lime in the parging and the mortar joints, as well as the brickwork itself. They also form hygroscopic salts (salts which attract moisture). Eventually water and regular wear and tear will cause the mortar between the bricks to start to deteriorate. This is a serious concern for the integrity of the structure as missing or damaged mortar will allow water to get behind the bricks and cause structural damage.
A process called tuckpointing is the best solution for crumbling mortar joints. The problem is taken care of by removing the damaged mortar and replacing it with fresh mortar with special tools designed for the job that will hold all of the pieces of the chimney together. During this process damaged bricks are also removed and replaced. Tuckpointing will not only repair the damage that has recently occurred, but it will also prevent further damage to the surrounding bricks. This process will also prevent the water that caused the damage from leaking into your home and causing more damage to the interior of the structure
Another common problem with too much moisture is spalling. Spalling is the technical word for the face of the brick breaking off from the chimney walls. You may notice brick pieces on the ground along the chimney or if the damage is near the bottom, you may be able to see the damage up close. Spalling is also caused by water damage. In this case, water seeps into the pores of the brick and when they inevitably freeze and thaw during the winter time, this cycle causes the surface of the brick to break away and will ruin the effectiveness of the brickwork.
The most common fix for spalling is “waterproofing” the exterior of the structure. This water repellent treatment is made specifically for chimneys… Because natural brick is a porous material that absorbs water and brings it to the interior of the chimney. To prevent water from passing through chimneys, the treatment is made from a special formula that is “vapor permeable”. This means that water from the interior can pass out to the exterior of the structure, but moisture from the outside cannot enter. This way the material is still allowed to breathe, it just will not allow in water that will cause problems. Inside moisture is allowed to escape but no new water from the exterior may enter.