Ventilation is the intentional introduction of outdoor air into a space and is mainly used to control indoor air quality by diluting and displacing indoor pollutants; it can also be used for purposes of thermal comfort or dehumidification.
The intentional introduction of outdoor air can be categorized as either mechanical ventilation, or natural ventilation.Mechanical ventilation uses fans to drive the flow of outdoor air into a building. This may be accomplished by pressurization (in the case of positively pressurized buildings), or by depressurization (in the case of exhaust ventilation systems). Many mechanically ventilated buildings use a combination of both, with the ventilation being integrated into the HVAC system. Natural ventilation is the intentional passive flow of outdoor air into a building through planned openings (such as louvers, doors, and windows). Natural ventilation does not require mechanical systems to move outdoor air, it relies entirely on passive physical phenomena, such as diffusion, wind pressure, or the stack effect. Mixed mode ventilation systems use both mechanical and natural processes. The mechanical and natural components may be used in conjunction with each other or separately at different times of day or season of the year. Since the natural component can be affected by unpredictable environmental conditions it may not always provide an appropriate amount of ventilation. In this case, mechanical systems may be used to supplement or to regulate the naturally driven flow.
In many instances, ventilation for indoor air quality is simultaneously beneficial for the control of thermal comfort. At these times, it can be useful to increase the rate of ventilation beyond the minimum required for indoor air quality.
The original motivation for louvre shutters was to protect a home’s interior from the elements before the mainstream use of glass windows was implemented.
However, apart from their attractive aesthetics, louvre shutters are still used today for three primary reasons: light and ventilation control, and of course, for privacy. Although they provide an excellent solution to all three of these requirements, they also offer a wide range of other benefits, which have no doubt, added to their ever increasing popularity.
While for most homeowners, louvre shutter’s spectacular aesthetics is one of their foremost considerations, by installing matching shutters on all your home’s windows, you will no doubt add great value to your property by greatly improving the overall appearance of your home. Louvre shutters are an attractive added feature for any potential buyer – they offer a timelessly elegant design that will complement almost any style of décor, and will save the new buyer thousands of rand in having new curtains made up for all the windows in the home. – Antonella Dési