Exterior cracks in home concrete walls may be easily repairable or dangerous, depending whether or not the crack is spreading. Hairline cracks can be repaired, but if the crack is spreading, then professional help is needed.
If you suspect a crack larger than a hairline is spreading, then professional help is called for. Put a piece of tape over the crack, and if it tears, the crack is spreading.
Hairline cracks are not serious if they are not spreading. These can be repaired with an injection of urethane or epoxy.
Spreading cracks can be very serious, leading to more and more damage the longer they are ignored.
Wide cracks that are not spreading can be repaired with sand and epoxy sand filler. If the crack is extremely wide, be sure to contact a professional.
Concrete Block Walls
If your walls are block walls but not poured concrete, then use an epoxy sand filler for repairs.
- Photo Credit Thinkstock Images/Comstock/Getty Images
How to Repair a Cracked Wall
Wall cracks can be caused by construction, accidents and settling of the house. It is unsightly to have a cracked wall and...
How to Repair Cracks in Concrete Block Walls
Concrete blocks are often used in constructing a wide range of structures from homes to commercial properties and outdoor structures. Commonly rectangular,...
How to Repair Exterior Plaster Walls
Exterior grade plaster, also known as stucco, is a cement-based finishing material. Plaster comes in a dry form that when mixed with...
How to Repair a Stair Step Crack in a Block Wall
Concrete blocks are used a lot in construction as foundation walls in basements. These work just fine, except that you cannot always...
What Causes Hairline Cracks in Walls?
Whether cracks occur on the finished surfaces of masonry, wood or metal stud walls, the most common cause is the movement of...
Horizontal Cracking in Brick Mortar
Cracks in the mortar of your brick wall may occur for several reasons. Normal movement of the foundation or expansion and shrinkage...
Hairline Cracks in a Stucco & Dryvit Wall
Stucco and Dryvit walls are relatively low maintenance, offering a durable finish to exterior walls. Both products, though resilient, may sustain hairline...
Exterior Concrete Wall Finishing
Exterior concrete wall finishes vary in type and expense. You can install stone veneer, which comes in an array including man-made stone,...