Painting the exterior of your house can be a rewarding and cost-effective way to improve its curb appeal and protect it from the elements. However, before you start applying a fresh coat of paint, you need to make sure that the surface is clean and ready for painting. In this article, we will answer the question: Do I need to wash outside of house before painting? and provide some tips on how to do it properly.
The Importance of Washing Your House Before Painting
The short answer to the question is: Yes, you need to wash outside of house before painting. This is because dirt, dust, mold, mildew, and other contaminants can prevent the paint from adhering well to the surface, resulting in peeling, cracking, bubbling, or fading. Moreover, washing your house before painting can improve the appearance and durability of the paint job, as well as prevent health problems caused by exposure to mold and mildew.
Washing your house before painting is not a difficult or expensive task, but it does require some time and effort. Depending on the size and condition of your house, you may need to spend a few hours or a whole day to complete the job. You will also need some basic tools and materials, such as a garden hose, a pressure washer, a scrub brush, a bucket, a ladder, and a cleaning solution.
How to Wash Your House Before Painting
The best way to wash your house before painting is to use a pressure washer, which can remove dirt and grime from hard-to-reach areas and create a smooth and even surface for painting. However, you need to be careful when using a pressure washer, as too much pressure can damage the siding, windows, doors, or trim. You also need to avoid spraying water into electrical outlets, vents, or cracks, as this can cause water damage or electrical hazards.
Here are the steps to follow when washing your house with a pressure washer:
Choose a mild and biodegradable cleaning solution that is suitable for your type of siding. You can buy a ready-made product or make your own by mixing water, vinegar, and dish soap.
Fill the pressure washer’s reservoir with the cleaning solution and attach the appropriate nozzle for your siding. A low-pressure nozzle (25 to 40 degrees) is recommended for most types of siding, as it can clean without causing damage.
Start from the top and work your way down, spraying the siding in sections and overlapping slightly. Keep the nozzle at least 12 inches away from the surface and move it in a sweeping motion. Avoid spraying water under the siding, as this can cause it to warp or rot.
Rinse the siding with clean water, using a high-pressure nozzle (0 to 15 degrees) to remove any remaining dirt or soap residue. Again, start from the top and work your way down, and avoid spraying water under the siding.
Let the siding dry completely before painting, which may take up to 24 hours depending on the weather and humidity.
Alternatives to Pressure Washing
If you don’t have access to a pressure washer or prefer a more gentle method of washing your house, you can use a garden hose and a scrub brush instead. This method may take longer and require more elbow grease, but it can still produce good results. Here are the steps to follow when washing your house with a garden hose and a scrub brush:
Choose a mild and biodegradable cleaning solution that is suitable for your type of siding. You can buy a ready-made product or make your own by mixing water, vinegar, and dish soap.
Fill a bucket with the cleaning solution and dip the scrub brush in it. Scrub the siding in sections, starting from the bottom and working your way up. Use a circular motion and apply moderate pressure to remove dirt and grime. Rinse the brush frequently to avoid spreading dirt around.
Rinse the siding with a garden hose, using a spray nozzle to create a strong stream of water. Start from the top and work your way down, and avoid spraying water under the siding.
Let the siding dry completely before painting, which may take up to 24 hours depending on the weather and humidity.
Washing your house before painting is an essential step that can make a big difference in the quality and longevity of your paint job. By removing dirt, dust, mold, mildew, and other contaminants from the surface, you can ensure that the paint will adhere well and look great. Whether you choose to use a pressure washer or a garden hose and a scrub brush, you need to follow some basic guidelines and precautions to avoid damaging your house or injuring yourself. With some time and effort, you can prepare your house for painting and enjoy the benefits of a fresh and beautiful exterior.
