Facade stone suitable for wet and dirty areas
Tips for choosing stone for wet areas
Sometimes it happens that you ask what is the best stone for the facade of the building? In answer to this question, it should be said that the goal is not to choose a specific stone, but to choose a suitable stone that matches the climatic conditions of each region or in which part of the facade we want this stone to be used. All these factors make our selection undergo changes that require necessary information.
In explaining the different weather climates of our land, it should be said that moderate and humid climate forms one of these climates, which includes two types of regions. One is coastal areas that are along the sea line, such as the north and south of the country, and the other is mountainous areas that are covered with war trees.The reason why it is recommended to be very careful in choosing the stone for these areas is the heavy and sometimes non-stop rainfall in all seasons of the year, especially in autumn and winter.
Another important point for humid areas is that air humidity has caused a small temperature difference during the day and night, unlike tropical areas, so there is no need to store thermal energy, so it is not necessary to use stones that have a high thermal capacity. Also, you should know some tips to choose the right stone for cold regions
Suitable and unsuitable stone facades for wet areas
Among the existing stones, travertine will undoubtedly be the first suggestion of any stone expert for use in facades in humid areas because this stone has a very dense texture and has a good porosity that makes it stick well to the mortar, which makes this stone absorb have very little water and moisture.
Of course, it should be noted that there are gaps in the two surfaces of the travertine stone. The back surface is well filled with mortar and grout, but in order to say that this stone is suitable for wet areas, we must also fill the pores of its upper surface, which is done by resin. Due to the increase in water volume during freezing, if these pores are not filled, they will appear as cracks on the surface of the stone over time and eventually cause the stone to disintegrate. So, we should be careful to choose the travertine stone whose surface pores are covered with resin.In general, stones that are heavy and do not have proper porosity are not suitable for exterior use in these areas
According to the mentioned contents, travertine stone is especially suitable for the exterior in humid and temperate regions. Travertine from Bukhari Valley, Abbas Abad, Takab, etc. can be mentioned as examples of suitable travertine.
In coastal areas, where villa structures are more common, the model of sheet stones is used for the facade of the walls. Also, sometimes rubble stones aligned with the walls are used for a part of the facade
Since we are talking about humid areas, it should be said that although granite stone is very strong, but because it contains iron compounds, it gradually becomes oxidized when exposed to humid air, which robs the facade of its beauty.
Gemstone, which is mined in Khorramabad, belongs to the Limestone series, which, despite being suitable for flooring and stairs, is not suitable for open space and exposed to pollution and moisture due to its soft texture, and because of its non-absorbability, it is a scale-absorbing stone
Stones suitable for flooring in wet areas
In these areas, because there is a lot of rainfall, it is natural that we have to consider the slippery surface to choose paving stones and stairs, which we suggest are ax and hammer stones. Tisheh marble stones are a suitable option for paving these areas. It is generally recommended to use marbles in building facades using mechanical and dry methods. Pafaki marbles and Adi stone are not recommended for flooring in these areas, but Najaf Abad black marble, Faraz marble, Pertawoosi marble and Salsalali marble can be used for flooring
summary
In order to achieve the best choice for interior and exterior facades, the first step is to consider the climatic conditions prevailing in the region in order to save time and money and add beauty to our building with a wise choice. It was said that stone with suitable porosity and low water absorption and required heat capacity is suitable for the facade stone of wet areas, which was the topic discussed in this text, and more details were said above