The Various Aspects Of Exterior Louver
Louvers act as a ventilation system that allows air to pass through a window. At the same time these louvers will keep undesirable elements like dirt and water out. Exterior architectural louvers offer such service by featuring fixed or operable blades that are mounted to a frame. This structure allows for proper air flow, however, excluding those unwanted elements. When considering louvers there are many factors to take into account in order to hve the proper louvers installed.
Factors
These factors that must be taken into consideration include free area, water penetration, and resistance to airflow. By properly configuring the free area as well as the water penetration the pressure loss, or resistance to airflow can be determined. This will allow for the best solution in terms of installing louvers.
Free Area
Free area is an important aspect to consider when thinking about installing louvers. The free area is calculated by determining the total area of the obstructed air flow in comparison to the overall wall opening. The complete louvered opening versus the unobstructed opening will most often fall within the ranges of 35% to 60%. A high percentage of free area is very beneficial. This will allow for an optimized amount of air flow to a smaller wall opening.
Obstruction
Obstruction is important as it prevents water from entering through the louver. A wholly obstructed opening will not allow any amount of water to enter. A fully non obstructed opening will let water enter at an unimpeded rate. However, a properly designed louver will all for an optimized free area while at the same time allowing for minimal water entry.
Water Penetration
To establish the water penetration of a louver, the air intake velocity must be determined. The first point of water penetration is the point at which a louver will let water pass through the louver. By taking the threshold measurement of the air intake velocity the proper penetration will be considered. By factoring in water penetration the proper louver can be installed.
Pressure Loss
Any obstruction that is in the air stream will create a resistance. This includes louvers, coils, filters, ductwork, the structure of the building, the list goes on. The actual resistance provided by the louver can be determined by measuring the running air through the louver while also measuring the pressure differential at a variety of free area velocities.
Aerodynamics
Louvers will create a resistance to air flow. This is because they cause an obstruction. The frame of the louver as well as the shape of the blade determines the resistance of the air flow. Blades that are of lover angles will have a more aerodynamic shape that allows for less resistance. In order to fully figure the resistance to airflow the free velocity allowed by the louver must be determined. It is very important to figure out the resistance because this will help maximize air flow.
The exterior architectural louvers are a great asset to any residential or commercial property. When thinking of installing these louvers it’s important to take all these factors into consideration. By determining the free area, water penetration, and air flow resistance the proper louver solution can be installed. There are many types of louvers; there are motorized wood louvers as well as sun control louver. Louvers are a very important as they allow for proper air flow as well as protection from certain unwanted elements.














