Cracking and shifting of walkways is a common occurrence and can be caused by tree roots, moisture, freezing, settlement, or incorrect installation. When slabs displace vertically upward, they present a tripping hazard. When walks settle, water can accumulate which can freeze in the winter causing icing and hazardous conditions. When cracks develop, sealing or patching is required to prevent water penetration and accelerated deterioration.
Repairing cracks and holes in concrete prevents water damage and improves safety. These cracks can allow water to travel into areas where it isn’t invited. Concrete is also quite porous and acts like a sponge. When temperatures drop and concrete is wet, it can freeze, causing cracking and spalling or chipping. You can minimize this damage by periodically sealing the concrete with acrylic or silicone-based concrete and masonry sealer.
A liquid concrete sealer prevents water absorption by filling the pores of the concrete. Generally clear, a concrete sealer lasts for six months to a year depending upon the quality of the material, surface preparation, and the climate.
Inexpensive “water seals” don’t offer the level of protection that some of the more pricey products do. Moreover, poor-quality sealers need to be applied more frequently and can end up costing more money in the long run. Concrete sealers can be applied with a brush, roller, or by using a pump garden sprayer. Before you begin, the concrete should be clean. Rock salt used to melt snow is another primary source of deterioration of concrete. A sealer can also help protect the concrete from salt damage. After the snow melts, rinse the area with hot water to remove the majority of salt deposits.
Asphalt
Blacktop driveways don’t remain smooth and black forever. The forces of New Jersey weather do their best to break down the surface. Unless your driveway is adequately maintained, cracks and potholes will appear. Grass can take over the edges and work its way through developing cracks.
Excessive heat, freezing grounds, ultraviolet rays, and substances such as salt, oil, gas, and grease all take their toll. Without protection, that beautiful black driveway eventually can become a lumpy, crumbling mess. If you are willing to put forth a little effort, you can prevent these problems by sealing and coating your driveway every two to three years.
