The appearance of fine cracks on house walls or hairline cracks is one of the problems that must be watched out for. This is because, usually after hairline cracks appear, other problems will arise, such as cracks getting bigger and spreading or the peeling of wall paint layers.
Cracked exterior walls of a house can cause rainwater to enter and seep into the house. This seepage of rainwater makes the walls damp, making them susceptible to mold and mildew.
Causes of Hairline CracksBefore dealing with hairline cracks on house walls, Avian Brands Friends need to know the causes. Generally, hairline cracks on walls can occur due to:
- Extreme weather changes
Hot air temperatures cause house walls to expand, while cold temperatures cause walls to contract. Extreme weather changes occur when air temperatures change from hot to cold and vice versa quite rapidly. The expansion and contraction that occur result in the appearance of hairline cracks on house walls.
- Poor plastering
An improper mixture of cement, sand, and water, or inadequate plastering, makes the wall layer less sturdy and prone to hairline cracks. Make sure to use the correct composition ratio so that the walls are more crack-resistant.
- Poor quality cement and sand
The quality of the cement and sand used greatly determines the strength of the wall layer. If the cement and sand used are of poor quality, the walls will be more prone to cracking or even crumbling.
Read Also: 7 Steps to Painting House Walls for Beginners
Solutions for Hairline Cracks on Exterior WallsSince hairline cracks are caused by weakened walls, the recommended solution is to repair the source of the cracks and protect them. Open the cracked section slightly and fill it with a cement and water mixture. Then, apply putty and primer to the wall before coating it with high-quality exterior wall paint.
The quality of exterior wall paint is crucial in addressing hairline crack problems on house walls. Choose exterior wall paint that meets the following criteria:
- Covers hairline cracks
High-quality exterior wall paint is capable of covering hairline cracks and preventing them from reappearing. This feature is very important because cracks on the wall surface are very likely to reappear if not properly addressed. Therefore, choose wall paint that can prevent cracks from reappearing.
- Reduces incoming sunlight
In addition to coloring house walls, exterior paint also has a protective function. Choose paint that can prevent the absorption of sunlight from the house walls. This way, the rays hitting the wall surface do not enter the house and make the temperature hotter.
- Lowers room temperature
High-quality exterior paint has the ability to lower room temperature, making it cooler. This feature is very beneficial during the dry season when the average daily temperature is higher than usual.
- Anti-fungal and anti-moss
Exterior walls tend to be more humid during the rainy season, which can trigger the appearance of mold and moss. Use exterior wall paint that has anti-fungal and anti-moss features to better protect the wall surface.
Sunguard All-In-One is a premium exterior wall paint product that boasts all the features mentioned above. Equipped with UV Shield Pro technology, Sunguard All-In-One exterior wall paint can cover hairline cracks and reflect sun's UV rays. As a result, the indoor temperature becomes cooler by up to 5°C.
Sunguard All-In-One exterior wall paint is available in over 10,000 color options created using tinting machine technology. By using Sunguard All-In-One, Avian Brands Friends not only get exterior wall protection but also house colors that remain bright for up to 15 years.
Get Sunguard All-In-One exterior wall paint products at nearby building material stores and Avian Brands Official Stores on Tokopedia Jakarta and Surabaya.
