Painting the outside walls of your home may give it a clean, well-maintained appearance and add substantial value. In addition, the paint shields the walls from wind and weather. However, painting the exterior walls needs some expertise and planning. You must leave ample time for preparations and select the highest-quality materials. These will provide the greatest guarantee of effective outcomes and permanent protection, Says osdecor.ie .
Utilize brushes and rollers of superior quality for a visibly superior outcome.
Selecting a paint
Exterior walls should be coated with acrylic (water-based) wall paint. This type of paint helps to make the wall waterproof, and it also allows moisture that is already present in the wall to dissipate. When painting an outside wall, remove as many obstructions as possible, such as shutters, plants, shrubs, ivy, etc. Additionally, you should inspect the brickwork’s pointing and remove any plugs, screws, nails, etc.
repairing brickwork’s fractures and pointing it
Chances are, if you wish to paint an ancient brick wall, part of the pointing will be broken or possibly gone. Before you can begin painting, this must be repaired. Therefore, it is necessary to remove the damaged sections, repoint them, and fix any fractures or other issues.
There is a considerable likelihood that salt production and white deposits will appear on a freshly painted wall. This is because salt residues might remain on new walls after the wall’s moisture has evaporated. This may be removed with a wire brush or a multi-stipper equipped with a cleaning brush. Then, remove the loose powder with a gentle brush. Don’t let the dry and clean walls become wet again! And refrain from using a high-pressure washer; otherwise, the operation must begin again.
Scrub the walls.
Always begin with a blank wall. If the wall is water-sensitive or if you reside in a forested area, moss or algae development will inevitably affect you. This may be removed with a wire brush and hobby knife. Then, treat the wall with a 50/50 bleach solution. After a few hours, properly rinse the substance with water. Ensure the wall is completely dry before painting it; this will take many days.
A pressure washer will help you to eliminate the majority of the wall’s grime. Additionally, you will be able to remove any loose paint and dirt from the wall. If required, use moss remover, wait for it to take action, and then clean the wall again. Depending on the weather, you should then wait 14 days before beginning the painting.
If dampness in the walls is a concern, this issue must be resolved first. Possible explanation: inadequate insulation between the foundation and the wall. In this situation, you may either install a ventilation aperture, such as in a vertical gap in the pointing, or replace a single brick with a ventilation grid.
Walls exhibiting a powdered finish
Walls that have been previously painted may be impacted by powdery deposits that hinder the fresh paint from adhering properly. The underlying surface must next be primed using a specific adhesive. Without a good, solid surface, the paint will not attach correctly and will become loose again in a short amount of time.
Construct a plinth at the bottom of the wall.
The underside of the wall should be brushed free of soil and sand at ground level to avoid the brush from becoming blocked. If feasible, dig deeper by one brick, remove the sand, and allow it to dry thoroughly. First, apply an undercoat to untreated bricks and let at least 12 hours for it to dry. If you emphasise this ‘plinth’ with a deeper hue, mud splatters will be less obvious.
Doors and window frames are masked.
Cover adjacent vegetation with plastic foil. Using masking tape, cover windows, door frames, and other woodwork. First, using a big brush, paint the wall’s margins, as well as the door and window frames and the gutters. Ensure that there is ample overlap between surfaces, then paint from the dry region to the margins of the wet paint.
Don’t skimp on the amount of paint you use; if you don’t use enough, the result may be uneven and spotty.
Verify the lot numbers of the paint you are using. If these are different, there is a strong likelihood that you may notice variances in hue or colour differences during lengthier storage.
Painting the walls
Use a roller with long hair for painting. Then, there will be less obvious overlap, and you will be able to work significantly faster. Make sure the paint roller is adequately refilled. Apply paint on a vertical stripe. Fill the roller with additional paint and apply a second strip 40 cm apart. Now, diagonally roll the two paint strips over each other. Ensure that the paint fills all gaps and points. Then, paint the wall from the top to midway down, and then from there to the ground.
Then proceed with the subsequent paint strip on the left or right side. Use a thin paint roller for tiny areas or when painting close to door and window frames. There will always be a painted edge that is still wet, and you should work from dry to wet regions.
ladder or scaffold.
Always select a dry, windless day for painting. Utilize a sturdy ladder or stepladder that extends approximately one metre above the working height. Ensure that your ladder is standing on a sturdy platform and is held securely to prevent it from falling.
Position the ladder at a 15-degree angle relative to the wall. Always relocate the ladder if you must reach more than an arm’s length to the side while working.
A spacer boosts the ladder’s stability and operating safety. A spacer may be added to any ladder with ease, and it is especially beneficial while working on overhanging gutters, for example. Typically, a spacer extends the distance between a ladder and a wall by 35 centimetres. It is advisable to rent scaffolding or a cherry picker for safer work conditions.
In many instances, maintenance will also be required for the gutters and margins of the roof, which must also be painted. If you have leased scaffolding or a cherry picker, you can also examine the technical condition of the roof gutter and make any necessary repairs. See also the detailed guidelines for ‘Maintaining rain gutters’.