Water will seep through any crack it can find in your stucco. The underlying cause of the hairline wall crack may be due to problems with the walls framing, contraction or expansion of wood sheathing, settling, thermal expansion or contraction, rapid changes in temperature, weak areas in the wall or abnormal vibrations in the ground. A caulking with an acrylic base or acrylicsilicone base is better suited for applications that are needed on the finish coat because it is easier to work with and blends into the stucco finish easily, using the correct tools and methods. A hairline crack here and there isnt cause for concern. Painting your home with highquality thick paint can fill these hairline cracks naturally with the paint film. It is normal for plaster to crack from movement and stress, especially in a new home. Stucco, after all, is not very resilientits made of cement. Repairing hairline cracks in exterior stucco a helpful tutorial. Oct, 2015 virtually all stucco homes these days all suffer from one thing, cracking. In fact, repair of minor hairline cracks may be included in the cost of painting. I pour dry stucco powder into a cup, then use a dry 1inch brush to dab the powder into the cracks. One can determine the cause of the crack by looking at the walls design, the size of the crack and the pattern.
Learn how to fix hairline cracks in stucco from stucco. Tests show that an extra 18 thickness requires twice the impact to cause cracking. When left unpainted, chunks of stucco will pop out and costly repairs will be needed. Jun 20, 2015 virtually all stucco homes these days all suffer from one thing, cracking. Using a one size fits all approach to repairing cracks will leave the exterior of your home looking like a shoots and ladder board. How to repair or fill small or hairline cracks in cement.
This type of paint may also be used to repair hairline cracks. How to paint old exterior stucco home guides sf gate. In florida, stucco is a common choice for exterior wall cladding, but after time, cracking can become a problem. Aug 15, 2017 hairline cracks are arguably the most common type of stucco crack. Some will be thin hairline cracks while others could be much wider or you could have holes in the stucco. For these small cracks, get a flexible, paintable, exterior grade caulk. Often, even after a relatively small stucco repair, you may need to repaint the. So when a house settles over time or shifts because of heavy winds or earthquakes, the stucco siding cracks. It is applied soft, and dries and hardens to a very dense consistency. For larger cracks, use a putty knife to remove loose debris first and then fill the cracks with a dry stucco repair product. Obviously, the proper preparation of a building substrate is critical to a successful exterior painting project.
If you have a small crack in your exterior stucco, you can patch it pretty easilyand you definitely should, or you may be in for more extensive repairs down the. These cracks are anywhere from 116 of an inch to 18 of an inch wide typically and are easily and effectively repaired using caulking and paint. They do make a caulking with sand in it, apply it as you would normally and float it with a sponge float. Looks like most of the cracks are in the stucco, its hard to tell if the cracks go deeper or are caused by underlying problems. Now in the winter i am seeing more and more hairline cracks and some spider cracks but still hairline. First, you will want to wet down the wall where the. While small cracks wont affect the integrity of the siding and can often be repaired without calling a pro. If you have a small crack in your exterior stucco, you can patch it pretty easilyand you definitely should, or you may be in for more extensive repairs down the line. In 1982 the california contractors licenses board published a set of workmanship guidelines that addressed cracks in stucco finishes. Its important to remember that even though most of the time small stucco cracks or normal, there are some situations where a large crack can be a sign of a bigger problem.
There are several types of cracks that will occur in stucco walls. This level of maintenance is expected with stucco homes, and these cracks dont undermine the integrity of the exterior finish. Most of the time, these will be relatively small and are refer to as hairline cracks. Wide, deep cracks could be caused from the house settling and you should consider having the foundation checked in case it is crumbling and needs to be fixed. Most of the time, these will be relatively small and are refer to as hairline. Cracks in your stucco walls are not the best sight for any homeowner. Often, large cracks develop at the intersection of vertical walls, at the upper corners of window and door frames, or at joints between wood framing and concretebrick masonry. Bridges hairline cracks often stucco will begin to crack. Although control joints are typically used during construction to minimize stucco cracking and to accommodate. Stucco is a material made of cement, lime and sand.
These cracks are usually about 116 of an inch wide or sometimes even thinner. If the crack gets any wider than that, it can become a deep crack. Most of the time these types of cracks can be fixed by homeowners with no plastering experience required, and requires minimal tools to do so. Internal stresses are due to the natural curing and drying process of stucco. These cracks are very thin, usually about 116 of an inch wide, or smaller. The exterior walls of an occupied building should, among other things, prevent excessive air and water from entering to the interior. Over time, even stucco on homes with firm foundations can develop hairline cracks. The behr premium elastomeric masonry, stucco and brick paint is an exterior, flexible highbuild coating designed to expand and contract, bridging hairline cracks on vertical masonry surfaces. Most common exterior stucco cracks that we get to deal with on almost daily basis are. Stucco cracks stucco cracking is one of the most common homeowner complaints. Dec 15, 2018 caulk hairline cracks in the stucco with masonrycompatible caulking.
Repairing cracks in stucco before painting paint kings. Portland cement stucco cracks develop for many reasons. Call ai restoration today to talk about stucco cracks. Hairline stucco crack is a very small surface crack within a wall crafted from stucco. Unlike hairline cracks, a large stucco crack may indicate a structural. If you have a small crack in your exterior stucco, you can patch it pretty easily and you definitely should, or you may be in for more extensive repairs down the. Hello everyone, i have a 5 year old home that had a few hair line cracks the first year. But if you ignore them, hairline cracks can become much worse. There are many ways to repair cracks in stucco and this can be as helpful as it is hurtful for the novicediy painter. Fixing cracks in stucco the wrong way and how to do it. How to repair stucco cracks on florida home dons painting. It doesnt matter whether its a hairline crack or a wide pattern crack. Once youve selected your coating, make sure you have the products you need to make minor repairs or fix cracks. Before you learn how to fix hairline cracks in stucco, it is important to discover how they develop.
Howto patch stucco exterior wall cracks invisible youtube. The exterior walls on my house which is made of stucco, are starting to get hairline cracks in them. Jan 12, 2011 repair cracks in plaster or stucco walls by plastering expert with 40 years handson training duration. Many homes that have stucco as an exterior coating have cracking issues, but most of them can be repaired quite. A better approach is to repair dead hairline cracks where the stucco is stable and the cracks dont change size or reappear by dusting them with premixed, pigmented stucco. Once youve fixed the stucco cracks, it might be a good time to repaint the whole exterior of your house. This looks the most natural and has no reflection to it at all, making it ideal for a building. Correctly repairing stucco cracks key to long term.
However, they can provide a pathway for moisture and water to enter into a wall system. Mar 03, 2016 now that you know why stucco cracks, lets find out how serious a stucco crack can be. If cracks exceed 332 it is unacceptable and should be repaired. Repairing hairline cracks in exterior stucco a helpful. Because of these serious risks that cracked stucco can entail, it is important to deal with it promptly.
Its not unusual for stucco exterior surfaces to develop cracks. Stucco houses crack, thats a fact because of the rigid nature of the material used and movement in one way or another. Stucco crack repair products could be an overwhelming topic for majority of people who needs them. May 07, 2017 repair cracks in plaster or stucco walls by plastering expert with 40 years handson training duration.
Stucco crack repair explained by professional stucco contractors. Howto repair a crack on exterior stucco surface behr. Large cracks that are more than 116 inch can cause water intrusion issues and other damage. Caulking cracks on stucco is extremely noticable painting. Can anyone suggest a simple, cheap solution for it that doesnt require painting the whole house. Elastomeric masonry, stucco and brick exterior paint. Stucco and siding house repairing hairline cracks on stucco. Caulking cracks on stucco is extremely noticable here is the proper way to caulk cracks in stucco.
Cracking in stucco or dryvit walls happens when there is more stress placed on the wall than the material can. Hairline cracks tend to result from heavy vibrations due to construction or harsh weather, especially in new homes. I put the builder on notice and of course the warranty has. Addressing those cracks also becomes a question that i get quite often and i thought it was time to write about the topic so you know what the main options are. The proper way to repair these problems depends upon their size. The wood dries, the vibrations from the construction equipment and other factors play a significant role in this for a brand new home. Its the nature of the medium and some minor cracking is to be expected. Unlike hairline cracks, a large stucco crack may indicate a structural problem. Once the decision is made to make repairs, there are several options.
There are quite a few reasons why each of these different types of cracks happen. If you need to paint over a repair, the paint needs to breathe, too, something indicated by a paints perm, or permeability. They ranged any where from 45 feet long to the length of my garage wall 16 plus feet between the front windows. This shrinkage, when restrained, may create hairline cracks. They come about due to different factors, and these will inform how you repair stucco cracks. External stresses are due to the transfer of outside forces into the stucco assembly.
Dec 18, 2017 there are a few types of stucco cracks. The best bet would be to call a contractor in your area to come take a better look. Many cracks could be avoided by paying attention to control joints, proper attachment of lath, allowing. Additionally, it is important to periodically check sealant around windows, doors, and other penetration points to ensure that your stucco is holding up in these potential problem areas. The best paints for stucco are elastomeric and have the appropriate thickness to fill those hairline cracks, crannies and crevices. Take a look at some of the many different types to get a better feel for what youre up against. When is it time to repair stucco cracks in the walls.
With so many stucco repair products on the market and plethora of stucco products existing in general how does one know which one is the best stucco repair product out of all exterior stucco repair products being sold everywhere. Stucco and dryvit walls are relatively low maintenance, offering a durable finish to exterior walls. In fact, repair of minor hairline cracks may be included in the cost of painting your home. There really is only one type of sheen you should be using in my opinion for exterior stucco and that is a flat sheen. Multiple hairline cracks in stucco i truely do hate to carry this on but i feel it a must.
This is the primary caulking that i like to use on hairline stucco cracks. If, however, the crack is as wide as the edge of a credit card, a repair patch kit can be useful. Painting companies with stucco experience will typically do both the stucco repair and painting. Stucco is a type of cement plaster that can be on interior or exterior walls. This kind of stucco crack is about 116 of an inch wide. Jul 23, 2008 small cracks that are less than 116 inch are common and can be easily repaired with minor filling and repainting, if needed. How to fix cracks in stucco, morflexx repair caulking. Heres what you should be looking for, to identify the types of cracks you have in your stucco. If there are minor cracks in your stucco, this is a project that most san francisco homeowners can tackle if they want to. Once moisture or water gets inside a wall, it will inevitably cause further damage. Jul 17, 2017 cracking in stucco or dryvit walls happens when there is more stress placed on the wall than the material can withstand. It has the same approximate thickness as a single strand of hair.
If you live in florida, its advisable to inspect your exterior stucco and fix. How to fix cracks in stucco, morflexx repair caulking with. Some people like a satin or eggshell sheen on their exteriors but i would recommend this for other siding lap siding, t111, etc. This gentleman bought a home several years agiio and quite literally had problems with the exterior application and finish from the get go. Homeowners should be told to expect minor cracks as the stucco shrinks. These are the most common types of cracks that youll see. Depending on how wide the crack is, a repair prior to repainting can make these imperfections virtually disappear. These stucco paints also have excellent uv resistance.
Stress cracks in stucco are caused by a lot of factors including earthquakes, direct impact, expansion, or strong winds. It can be used on the exterior or interior of a building and, occasionally, marble dust is added to the mixture, depending on the manufacturer. A better approach is to repair dead hairline cracks where the stucco is stable and the cracks dont change size or. Using a scraper, remove any loose debris from the cracked area. Its not really hard to repair stucco cracks properly if you know what youre doing, and youre extraordinarily patient throughout the whole process. Most of the cracks will be cosmetic and easy to repair. Its important to note that professional painters will need to fill larger cracks in stucco with exterior caulk or masonry patching prior to. The rule of thumb for repairing cracks is start small. Can anyone suggest a simple, cheap solution for it that doesnt. Without moistcuring, the strength of the stucco suffers. Stucco crack repair explained by professional stucco. Although elastomeric paints have all of these benefits, it is not always necessary to use them when painting your home. Jan 20, 2017 this can cause stucco cracks, and other foundational problems. Stucco also has a low first cost and typically requires a relatively small amount of maintenance, making it a costeffective exterior finish.336 259 426 12 251 1059 1435 290 748 1606 219 1239 1161 1157 740 1425 220 1349 876 727 412 1436 653 778 1499 955 779 667 862 881 1380 38 663 238 37 1124 1202