COATINGS FOR FACADES materials for coating

CHARACTERISTICS OF COATINGS FOR FACADES

The front of the condominium, ie any vertical surface that serves as closing element and surround to the building structure, but usually when talking about walls and, if more data are indicated, referring to the front facade is made of the building. Are these front facades of buildings that receive special care in architectural design, since they have a function not only of protection and building insulation from the external environment but also for its aesthetic design characterize the building so the coating facades on many occasions involves not only consider their functionality but also creativity to create harmonious facades with the environment in which the building is located.

There are multiple alternatives for cladding, in some cases priority is given to functionality, in other design and other the price of materials for coating.

But whatever the criterion for choosing the material for the coating of the facade there are a number of factors related to the characteristics of the coating materials that make them more or less suitable depending on the physical characteristics of the other elements and components the facade or geographical location.
Between the characteristics of the coating materials to consider when choosing one or another type of cladding they are:

Water absorption rate: also called porosity is defined as the measure of the amount of water that can be absorbed through the pores of the material. It is one of the most important physical characteristics in a coating material since it provides information on the overall performance of the coating material. Generally, the smaller is the degree of water absorption, the greater the resistance to freezing, stains, chemical attack, abrasion and tear resistance.

Compatibility thermal motion: The degree of expansion and contraction of the coating material due to temperature changes must be compatible with the adhesive, otherwise excessive efforts eventually result in material separation of the facade coating may occur.

Breaking strength: more important in the collation of the coating materials Factor, since materials too weak can lead to increased cost of the coating material, rather than after it has been placed as the breaking strength by drive is 10 times greater.

Resistance to chemical attack: A greater resistance less likely to decline as a result of pollutants and airborne chemicals used for cleaning and maintenance of facades.

Thermal shock resistance: The heat impact is defined as the degree and scale of the temperature swing in short periods of time. A facade with low thermal shock resistance suddenly exposed to extreme temperatures can undergo a variation in temperature of the coating material in a few minutes.

Dimensional stability: The property of coating materials which when subjected to temperature and humidity changes did not lose its shape and retain their original dimensions. When weather conditions of the geographical location where the building is located is very variable it is important that the coating material of the facade has a good dimensional stability.

Resistance to chemical attack: A greater resistance less likely to decline as a result of pollutants and airborne chemicals used for cleaning and maintenance of facades.

Thermal shock resistance: The heat impact is defined as the degree and scale of the temperature swing in short periods of time. A facade with low thermal shock resistance suddenly exposed to extreme temperatures can undergo a variation in temperature of the coating material in a few minutes.

Dimensional stability: The property of coating materials which when subjected to temperature and humidity changes did not lose its shape and retain their original dimensions. When weather conditions of the geographical location where the building is located is very variable it is important that the coating material of the facade has a good dimensional stability.