It's nice to live in a clean, warm and designed room, but the look of the house is also important. A well-designed facade will emphasize the status and taste of the owner. Exterior putty is usually used for walls. Its main purpose is to hide any surface imperfections, as well as sound and heat insulation. Because exterior walls are more susceptible to weather and precipitation damage, exterior putty often contains cement and synthetic resins to make it particularly durable.
Varieties of putty
Builders distinguish the following main types of it:
- Dry plaster.
The first, as the name implies, has the form of a powder that needs to be dissolved. Basically, for 20 kg of dry mix, you have to take up to 8 liters of water, it is better to cook in accordance with the recommendations of the instructions.The consistency of the mixture should resemble tomato paste. Dry putty for outdoor use can be stored for more than a year, but if it is diluted with water, then it should be used within three hours. This type of building material is made from cement, to which certain components are also added, such as polymers, marble flour, and mineral additives. The color of putty can be any.
The second type - acrylic putty for outdoor use - is sold ready-made. It has the consistency of a thick cream, is elastic, making it easy to apply on any surface. Its other benefits are:
- ease of use;
- moisture resistance;
- abrasion resistance.
In addition, acrylic putty for outdoor use, the price of which is slightly higher than dry, is particularly resistant to frost and precipitation. But for the perfect alignment of the walls, it is better to use gypsum. Putty based on it is environmentally friendly and has good adhesion. For wooden surfaces, it will be advisable to use an adhesive or oil version of this material.
The use of putty, its application
Before starting work, you need to choose the right time for puttying. This is best done on a warm sunny day. The absence of rain, snow and dampness is a mandatory requirement, because otherwise the quality of the putty maydeteriorate significantly. Work is best done in steps:
- Preparatory. It provides for a thorough cleaning of the surface from any dirt, as well as from the remnants of the previous paint or putty. All cracks, potholes are leveled thanks to the plaster. The entire surface must be protected with a primer.
- Actual putty.
When performing work, you need to use only stainless tools (plastic bucket, steel spatula, etc.). Putty should be applied in an even thin layer. Its thickness is 3 mm. There may be several such layers. This will provide better adhesion and durability of the coating. With proper application, 1.1-1.2 kg of putty is consumed per square meter. It is possible to reduce the cost of facade repairs through the use of various types of materials. So, coarse putty is suitable as a starter. Its thickness can reach 5 mm, because the main task is to maximize the alignment of the wall. Finishing putty for outdoor work is used already at the end of the work. It should be as smooth as possible, because it is on it that the paint is applied. If the work is done as it should, the facade will delight both the owners of the house and passers-by for many years to come.