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The Average outside air Rating of most Commercial Buildings is a min. of 15% exchange of your total cubic air space, per Hour during Occupied time period's.

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Is it possible to have wind inside a very large building?

Yeah. Why not? You have heat, ventilation and other outside forces effecting the inside of the building. So, it's not a closed system.


When quoting Squae Footage on commercial space do you measure from the outside of the building?

No, you should measure the interior space.


What is a courtyard?

A courtyard is an area inside of a building, but it does not have a roof. The courtyard is exposed to the entire sky. You cannot walk outside of the courtyard without going through the building first. Courtyards built into commercial office buildings and apartment houses were used as an air conditioning medium, before forced ventilation and mechanical cooling. The courtyard, because of limited sunlight, was cooler than the outside envelope of the building- this created a negative pressure. When the window to a courtyard was opened, a window on the outside of the building envelope could be opened, and the negative pressure in the courtyard would draw air across the floor- the courtyard then became a chimney of sorts, and this was a means of cross ventilation- simply the movement of air across the floor would make it seem cooler - for human comfort. Brilliant design.


Which is correct outside of a building or outside a building?

This is one case where the common usage in English has eliminated the proper descriptive function of a preposition. If something is "outside a building", it is actually outside "of" the building, but the word "outside" creates an adverbial clause that removes the need for the "of". "He was standing outside the building." (same case for "inside") The "outside of a building" is a noun meaning the exterior wall. "I had to repair the outside of the building."


Should you burn something inside or outside?

Outside for more ventilation & to reduce potential fire hazard.


Where should the dust collector exhaust be directed to ensure proper ventilation and safety outside the workspace?

The dust collector exhaust should be directed outside the workspace to ensure proper ventilation and safety.


What is the significance of a window in a brick wall?

A window in a brick wall serves as a source of natural light, ventilation, and connection to the outside world. It can also add aesthetic value to the building and enhance the overall design.


Where should the dryer vent be located in order to ensure proper ventilation and safety: inside the house or outside the house?

The dryer vent should be located outside the house to ensure proper ventilation and safety.


How can the air inside a building be more polluted than the air outside?

The air inside a building can be more polluted than outside due to factors like poor ventilation, indoor sources of pollution (e.g., cleaning products, tobacco smoke), and building materials releasing pollutants. Pollutants can accumulate indoors without proper circulation, leading to higher levels of indoor air pollution.


What is average room pressure?

In the room will usually be the same as the outside atmospheric pressure. The standard atmosphere is defined as being 101325 pascals = 101.325 kPa.


What outside temperature will cause air to flow out of a building?

Air will flow out of a building when the outside temperature is warmer.


Does the ventilation system on aircraft take air from outside?

Yes, actually most comes from the outside, the rest comes from within the aircraft.