Categories Of Rainscreens Cladding
Rainscreens can basically be classified into two categories, that is simple rainscreens and pressure-equalized rainscreens.
Simple rainscreens is generally sufficient for areas experiencing low rainfall. A simple rainscreen cladding is vented, while the support wall which covered with a waterproof material is airtight. The base of the wall often has a drain. One of the typical example of this kind of rainscreen would be a brick masonry finish above a concrete wall.
The second categories, pressure-equalized rainscreens structures is more advanced and was best protected Structures in areas that experience heavy rainfalls. The vents within the cladding enable the air contained in the cavity to bang against the layer of air barrier of the support wall as a rainstorm hits the building. the moisture is prevented from entering the structure because of the balancing of the outer and the inner pressure.
However, this balancing of two pressures works better in theory than in practice. But it helps a lot to compartmentalize the cavity. To further prevent the rainwater from piercing through the cladding, the sizing of joints delivers excellent results. For getting the best results, it is very important to employ quality sealants, and also drainage layers over the support walls to ensure that the pressure balancing wall facade system works efficiently.
It is quite essential to provide buildings with rainscreen cladding, which help keeping the exterior wall cladding strong for a long time, and also save the nuisance of frequent repairs of the building. Since rainscreen system can prevent the decay of a building due to moisture, they also help making the building a safer place to live and work.