Painting the front, the walls of the house from the outside
How much paint do I need for my walls?
What paint to paint my house with?
To choose the right paint, read the previous page about choosing facade paint to paint the outside of your house. Painting a facade is perfectly capable of doing it yourself, you just need time, knowledge and patience.
On the packaging of the paint is always information on the consumption of paint. Usually indicate specific consumption of facade paint - the number of liters (kg) that must be spent for painting 1m2 of facade in one layer, l/m2. Sometimes on facade paint packages the inverse value of consumption is indicated - the surface area that can be painted with 1 liter of paint, m2/liter. Usually the paint consumption is indicated in some interval, for example: the consumption of 0,1 - 0,25 l/m2.
Here a smaller value of consumption is for smooth primed surfaces, and a larger value - for rough, textured not primed facades. On the websites of manufacturers and sellers of paints you can find calculators for calculating the amount of paint selected, depending on the area of the facade of the house, the number of layers and roughness of the painted surface.
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Facade paint is usually applied in two layers. For external house painting the amount of paint is determined by multiplying the area of the painted surface - m2, specific consumption - l/m2, number of layers - 2, safety factor - 1.1. The safety factor of 10% is necessary to avoid unpleasant situation when a little paint is not enough at the end of work.
How to prepare the walls of the house for painting?
The quality and durability of exterior house painting depends very much on proper preparation of the wall surface. The substrate on which the paint will be applied must be tight, strong and primed.
Preparing to paint old house walls
Improving the condition of the substrate is usually always necessary before painting old house walls.
The old wall should be cleaned of dust, mold, moss and easily peeling layers of old coatings before painting. To do this, the wall is best washed with a pressure washer, such as a car wash.
Or you can wipe the entire surface of the wall with a stiff brush, but this option is more time consuming. It is better to use both methods, after washing treat only places of intense contamination with a brush.
Places of accumulation of mold, moss after their removal should be treated with a liquid bioprotective agent. Otherwise, in the thickness of the coating of the wall may remain parts of these biological substances that will quickly grow through the new paint.
Then perform repairs of plastered surfaces, filling cracks, places with peeling plaster. The old paint on the facade should not flake and dust. Areas with peeling paint are cleaned, primed and covered with an additional coat of new paint. If the old paint is damaged on a large area, it is better to remove it from the whole surface of the wall. A sandblaster is handy for removing old paint.
How do you determine the surface strength of a wall to be painted?
To do this, a fairly large piece of transparent adhesive tape is glued to the wall and after a minute, it is torn from the wall with a sharp movement. If the pieces of basement are not torn off the wall with the scotch tape, it is possible to prime and paint the wall. Otherwise, the wall surface should be cleaned by removing the old paint.
Preparing to paint the facade of a new home
The plastered facades of new homes are quite durable. Preparing the facade for painting a new house from the outside boils down to the following steps:
Be sure to dry the freshly plastered facade for at least 30 to 60 days.
The wall should be completely dry.
Apply a primer to the wall of the house. Non-plastered facades of sand-lime brick can be covered with a special colorless protective composition, or you can just paint the facade paint. In either case, the wall surface is primed.
Facades made of ceramic facing bricks are not usually painted. New common ceramic brick walls should be painted in the first two years before efflorescence appears.
Priming the walls of the house outside
to strengthen the dusty base;
to increase the adhesion of paint with the base;
to reduce water absorption of the coating;
to reduce the consumption of facade paint.
Faсade paint is more easily distributed on the primed surface, and its consumption is significantly reduced. It is best to use the primer recommended by the manufacturer of the facade paint selected for painting the outside of the house.
The quality of painting the facade of the house can be increased, if the primer is tinted in a tone close to the color of the facade paint. As a primer is sometimes used facade paint diluted with water in a ratio of 1:1. The primer is applied to the wall surface in the same way as the paint. Before painting, be sure to allow the primer to fully dry for at least a day.
How long does the paint dry?
Most facade paints are completely dry and produce a durable coating 24 hours after being applied to the wall. A second coat can generally be applied earlier without waiting until the first coat is completely dry. Information on the length of time after which you can apply a second coat of paint is provided on the paint packaging.
How long does the paint dry?
Most facade paints are completely dry and produce a durable coating 24 hours after application to the wall. A second coat can usually be applied earlier without waiting until the first coat is completely dry. The length of time after which you can apply a second coat of paint is specified on the paint packaging.
What to apply the paint with?
Facades are usually painted with a roller, a brush or an airbrush. The choice of tool is determined by the consistency (viscosity) of paint, texture of the painted surface and qualification of workers. Walls with a smooth surface are painted with a brush or roller with a short pile. It is more convenient and faster to paint with a roller than with a brush, in addition, less paint is used. When painting walls with textured surfaces or directly on brick, use a wide brush with long bristles.
You can spray paint walls of any texture, both smooth and embossed. Painting a house with a spray gun requires higher qualifications and experience with this painting apparatus. It is necessary to properly select the viscosity of the paint, pick up nozzles on the sprayer apparatus. Also requires a practical skill to apply the paint evenly on the surface of the wall. Painting a house with a spray gun is better to entrust to professionals. If you use special high viscosity textured paints with a filler, for applying paint to the facade use, in addition to the above tools, also a spatula.
Painting the house outside
Painting the house outside can be done by your own, following the recommendations:
Work on the facade must be planned by familiarizing yourself with the weather forecast.
On rainy, windy days, or at temperatures below +5 oC facade painting is better not to produce. The surfaces to be painted must be primed beforehand. The same methods are used for priming the wall as for painting .
Protect all non-paintable parts of the facade (windows, doors, slopes, plinth, blind area, etc.) with polyethylene film before starting the work. Painting is carried out in dry weather in the absence of strong winds. The temperature of the outside air should be within the operating range specified on the package of the facade paint.
Check the weather forecast before starting work. To paint the facade at heights, install a scaffolding or scaffolding. Painting a facade from a ladder is not convenient and dangerous. Apply a layer of paint on one wall of the house without taking long breaks in the work. If a part of the wall is painted the next day, the wall will leave streaks - places with different shades of paint. The second coat of paint shall be applied after some break, not earlier than it is specified by the manufacturer on the paint package. To avoid washing the roller or brush before each break in the work, wrap the tool in a polyethylene bag - the paint will not dry out. Spread the paint by moving the roller or brush in different directions, alternately vertically, horizontally, and diagonally.
How to Store Paints?
Protect the paint package from direct sunlight and frost. The paint should be stored at temperature from +5 to +25 C in a tightly closed package. Paint which is stored in such conditions remains usable even after the expiration date stated on the package. If the paint has separated during storage, mix it thoroughly with a mixer, a power drill attachment, and the paint will be usable again.
In what color to paint the facade of the house
When choosing the color of the walls of the facade are guided by the following basic rules:
1. The color of the walls of the facade of the house should be different from the color of the roof.
2. The color of the paint should be in harmony with the natural and other non-paintable materials with which the facade is finished: brick, natural stone, tiles, panels, etc.
3. The color highlights the various architectural elements on the facade: front door, windows, shutters, cornices, trim, etc.
4. In the absence of contrast in color scheme, the facade, as a rule, looks dull and not attractive.
5. It is recommended to use three colors of paint to paint the facade: the main color, the decor and the accent. In the photo the main paint color of the wall matches the color of the natural stone on the facade.
Smaller elements of the façade are highlighted with light beige paint. The warm light tone on the background of the thick, dark tint of the wall softens and makes the color scheme pleasing to the eye, and successfully decorates the facade. Color accent on the front facade, as a rule, make the entrance to the house, the front door. In this photo the wall of the first floor of the house is made of unpainted clay bricks. The color scheme for painting the upper floor faсade is chosen to visually reduce its volume and make the lower level more significant