How To Choose Paint For Facades
Facades are easily damaged due to exposure to rain, sun, dust, pollution, and microorganisms such as mold. To leave it as new, you can resort to painting, but painters Ann Arbor recommends you must choose the right one in each case. We tell you what you have to take into account to choose paint of facades.
Types of paint for facades
What to keep in mind before choosing?
Calculate the amount of paint
Prepare your facades before painting
How to paint a facade?
– The deterioration of the facades is not only an aesthetic problem, but the damage can cause moisture to penetrate.
– The painting work varies depending on whether it is a new or damaged facade. In the case of new facades, the surface must be clean and dry; in the old ones, you have to repair the cracks and damages.
– The paints can be acrylic (easy application), hydrobiotite (does not need a primer and is indicated even for facades in bad condition) or siloxane (repels water and is anti-mold).
Types of paint for facades
For its composition and benefits (duration, resistance …) we distinguish four types of paint for facades.
Acrylic. Within these, we can find versions of between 1 and 3 years of duration, 5 or 8, depending on their resistance to the weather. They stand out for their easy application.
- Hydropliolite. This type of coating based on acrylic resins offers up to 12 years of duration, thanks to its excellent resistance to weathering and adhesion, hence it does not need a previous coat of primer.
Suitable even for exteriors in poor condition (except wood and iron), it is indicated above all for sandy facades and located in dry climates.
- Siloxane. They offer 15 years of duration and extreme resistance to the weather. Waterproof, water repellent, and anti-mold, it is especially indicated for extreme and very humid climates. It is also self-cleaning with rain.
What To Keep In Mind Before Choosing?
Before choosing the facade paint, we have to take into account some factors:
1- Is the facade in a good or bad condition? If we want to repair a façade in poor condition, we do not need any paint, but we must choose a hydrophilite coating suitable for damaged facades.
2- Meteorological zone. If the house is in an area where it rains, we should often look at the water resistance of the paint and opt for a raincoat that also includes anti-mold and anti-green preservatives. If, on the other hand, it is located in a dry and sunny place, it is advisable to choose a UVA resistant coating.
3- Performance. This value measures the m2 that the painting covers per liter. (Divide the square meters you have to paint between the performance in square meters per liter that the manufacturer indicates, it will give you the number of liters you have to buy for your facade). The higher the yield, the less paint we should use.
4- Level of coverage. The greater the coverage, the fewer layers must be applied, which entails a saving of time, effort and money.
5- Adherence. Excellent adhesion means not having to apply a previous layer of primer, necessary to prevent the paint from cracking.
Calculate The Amount Of Paint
To calculate the liters of paint that you will need to paint your facade we have to know the m2 of the wall to be painted. To do this we multiply the width of the wall by the height and subtract the surface of doors and windows.
Also, keep in mind the number of layers you are going to apply.
Prepare Your Facades Before Painting
Before painting an old facade, it is necessary to prepare the surface. Diagnose the possible problems of the facade with this advice to carry out the appropriate treatment. Both depend that the damage is not repeated as well as the duration and performance of the new paint.