Causes of Cracks in Concrete Atlanta Roofing

concrete roof crack in atlanta roofing

Concrete cracks are normal occurrence but often misunderstood by homeowners. In fact, cracking is one of the most common causes of complaints in the construction industry. While most concrete cracks are not dangerous and do not pose a serious structural threat, they are, nevertheless, unsightly. In some extreme cracking cases, they negatively affect the durability and serviceability of the structure.

Recognizing and repairing concrete roof cracks is top priority, especially for people living in Atlanta, where potential damage to structures is a strong probability from earthquakes. There are different types of cracks in concrete Atlanta roofing, and each one has its own causes. Some of these are:

Crazing Cracks. These look like shattered glass or spider webs on the surface of the concrete slab. The cause of this type of crack is the rapid evaporation of water from the top of the concrete slab. While they may not look good, crazing cracks do not affect the structural integrity of the concrete roof slab. However, since the cracks are very fine, they cannot be repaired.

Expansion cracks. Concrete slab, similar to other materials, expands under hot weather. The expanding slab pushes against neighboring materials such as an adjacent slab or wall. If these materials do not give in to the pressure, the slab will crack from force.

Overloading Cracks. Putting too much weight on top of a concrete slab roof could cause cracks. While concrete is very strong and durable, it still has limits on the load it can carry. Too much load placed on top of concrete could crush it. While the weight may not be enough to pulverize the concrete, it could cause cracks to appear. The compressive strength of concrete is greater than its flexural strength, hence it bends under the weight.

Plastic Shrinkage Cracks. The most common cause of cracks is probably plastic shrinkage, which can occur a few hours after the slab is poured. This crack usually happens during hot weather. Having excess water in the mix with concrete is the cause of this crack. Water occupies space in the slab and forms part of its size. When water evaporates during curing, the slab becomes smaller. The shrinking creates stress on the concrete slab, which ultimately cracks to relieve the tension.

Vertical Cracks. These are caused by concrete settling around reinforcing bars. The cracks are caused when the concrete near the top partially sets while the rest of the concrete are still settling. Applying vibration to the concrete can prevent this crack from forming.

Should You Go For Concrete Tiles in Miami Roofing?

concrete roof in miami roofing

Going for concrete tiles in Miami roofing is highly recommended. It presents a lot of advantages for the home owner.

This article will focus on the benefits of getting concrete roof tiles in this tropical city. The downsides of this choice will be discussed here as well. Hopefully, at the end of the article, this will help you decide if you should go for this option in your roofing.


Here are the benefits of having concrete tiles in Miami roofing:

1. Very Resilient

The product is very durable. Provided that the tiles were installed properly, they can stand heavy winds, rain and other elements that can easily wear or tear down other roofing options. Concrete tiles are ideal for people living in coastal areas as well because these are resistant to salt and moisture that usually corrode other types of roofing, especially those with metal composition.  Also, these are normally flame-retardant.

2. More Affordable

The clay or slate types will surely give you a bang for your buck. Concrete is a lot cheaper than most roofing tiles. Combine that with their guaranteed longer life than other alternatives plus low maintenance costs and you will have a money well-spent.

3. High Insulation

These offer enhanced convenience within the home because of their capability to maintain temperatures at a cool and comfortable level. An added sarking under the tiles can help maintain their cooling effect better.

4. More Quiet

The density of the tiles buffer sounds from the falling rain or vibrations produced by noisy vehicles like cars, trains, and even the aircraft flying over the home.

5. Safe for the Health

Concrete tiles are typically made from natural ingredients. Thus, people with allergies to certain components of  synthetic stuff need not to worry about these.


Despite its benefits, this type of tiles has its downsides, these are:

1. Heavy

Concrete tiles are heavy. You must ensure that the structure of your home can support it. On the other hand, there are now lightweight types of these products. Then again, the lighter ones are usually less resilient than their heavier counterparts.

2. Needs Reliable Sealant

Although concrete tiles are resistant to water, the roof still requires a quality sealant that will fill the gaps in the installation of the material. This will prevent water from accumulating at the base of the roof.

3. Color Fades

These are hard, but their colors can fade in the long run after long exposure from the sun, rainwater, and other natural elements.