Hurricane winds can cause cracks in stucco especially where the stucco bridges a joint that flexes (Figure 8). Fresh stucco cracks are sharp and unweathered. Merging cracks occasionally contain loose pieces of the stucco material. Localized damage can occur where flying debris strikes the stucco clad wall.

Is it normal for outside stucco to crack?

Stucco cracks are fairly common. Anyone with stucco walls will tell you that cracks seem to be a way of life for them. If you have stucco, you need to understand how the cracks come about, and when you'll need to repair them.

Why does my stucco keep cracking?

Though cracks in stucco can occur due to different factors, including wrong mix proportions, insufficient mixing, poor workmanship, seismic movement and seasonal changes, two leading causes of cracks in stucco are the house settling process and shrinkage-induced stresses, which typically occur during the drying period.

Is it common for stucco to crack?

In short, hairline stucco cracks are common and can be easily repatched. Most are not a serious indicator of foundation damage or structural disrepair. However, hairline cracks caused by foundation settlement will likely reappear after the repair and worsen.

How much cracking is normal in stucco?

Hairline Cracks – Typical stucco cracks that require normal maintenance are hairline cracks less than 1/8 of an inch. These cracks can be stair-stepping on concrete block homes and that's completely fine.

Stucco wall & small crack at window explanation.

How do I stop my stucco from cracking?

Solution: To lower the risk of drying shrinkage cracking, the following measures should be implemented:

1. thoroughly wet highly absorbent/rough-textured masonry before applying stucco;
2. follow the recommended mix ratios, avoiding cement rich mixes;
3. damp-cure newly applied stucco in hot and dry weather conditions;

How much does it cost to repair cracks in stucco?

You can expect to pay between $60 and $120 per square foot to have a professional repair your stucco for you. However, keep in mind that not all stucco repair professionals charge by the square foot. Some charge based on time spent, and will typically charge $40 to $50 per hour.

How long should stucco last?

Stucco is a very durable finish material with a typical life span of 50-80 years or more. Although it is one of the most durable surfaces available, it also features the lowest annual maintenance cost when compared to other siding materials. Stucco is a natural material consisting of an aggregate, a binder, and water.

What do horizontal cracks in stucco mean?

Stucco shrinks as it hardens and gains strength. This shrinkage, results in micro cracking and hairline cracks. These cracks are usually less than 1/16 of an inch wide, with many being so thin that the naked eye may not be able to see them.

When should I be concerned about stucco cracks?

Larger cracks, we're talking 1/16 of an inch, are cause for concern. If you can slide your credit card into the crack in your stucco, it's time to seek some professional help. Larger cracks like these can indicate a structural issue that needs to be addressed prior to repairing the stucco.

Are hairline cracks in stucco a problem?

Stucco cracks are not unusual and most are not a structural problem, however, if the cracks are related to structural issues, they can be very expensive to fix and serious damage can occur to a home.

How often should stucco be repaired?

It is often recommended that stucco be painted every 5-10 years depending on its current condition. Each stucco home may have a different timeline on when it will need repairs and maintenance. Some factors include climate, the previous painting service, and how well you take care of your home.

Can cracks in stucco cause leaks?

Now stucco cracks don't always mean that there is damage, but it is usually a common sign of stucco moisture problems. Cracks and bubbles along the bottom edge of the wall — You may notice water leaking through the stucco walls and showing up along the bottom edge due to poor drainage systems.

Can you caulk cracks in stucco?

There are two main types of caulking that are best for stucco applications and these are for repairing cracks and for using when lathing to seal up certain areas. The two main types that are recommended by most people are an acrylic based caulking and a polyurethane based caulking.

How do you know if your stucco is bad?

You may see dark spots, stains, cracks, or even entire missing pieces of stucco. There could also be a telltale smell of wet, rotting wood if you get close enough.
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Is the stucco cracking or turning black?

1. Heavy staining.
2. Thin cracks.
3. Long cracks.
4. Bulges in the stucco wall finish.
5. Missing stucco.

Why you should not paint stucco?

Stucco needs to breath – One of the main reasons you shouldn't coat your stucco with paint is because stucco is porous. This allows moisture that hits the surface to easily evaporate away. A coat of paint can harm that breathability.

Can you use a pressure washer on stucco?

Yes, you can use a power washer or pressure washer to clean stucco. Just make sure to maintain a good distance between the nozzle and the surface, use the 1,500 PSI, and a 25- or 40-degree nozzle. Although, given the intensity of a power washer, seeking the help of a professional is always best.

What causes stucco to fall off?

When moisture does accumulate behind the stucco, it will soften any material it touches, which will cause the stucco to start breaking and falling off, sometimes in small quantities and other times in larger sheets.

What causes stucco to bubble?

A common cause for blistering or bubbling of finish from stucco wall surfaces is water getting behind the finish. As water accumulates at a particular location pressure can build that eventually causes the finish to blister. Sometimes the stucco itself may come apart if the stucco is weak at the surface.

How much does it cost to recoat stucco?

Recoat: A basic recoat costs between $3 and $6 per square foot, depending on the condition, type and texture of your walls. For a large repair, you may need a pro to recoat the stucco on a large portion of the house to make the patch color match everything else, as well as seal out moisture.

How do you refresh stucco?

Power-washing can clean off the dirt and grime and refresh the look of dingy stucco, and painting can also refresh its look. But homeowners who find that their homes need to be power-washed frequently may want to consider a smoother stucco surface the next time they have exterior work done.

Are hairline cracks normal?

Generally, smaller hairline cracks are not cause for concern. These are usually the result of seasonal expansion and contraction of clay soils beneath your house over time, and can be easily patched and re-painted.