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how environmental concerns shaped modern architecture. - air conditioner drain pan

by:HICOOL     2021-10-11
how environmental concerns shaped modern architecture.  -  air conditioner drain pan
(
Here are three seven.
A series of articles on the growth rate of mold testing, remediation programs and litigation in the United States, presented by experts from the Sandton division LZA Technology Environmental Health Services GroupGroup Tomasetti. )
In the final issue, this series discusses how the lack of utilitarian basics of architectural style elements has led to the creation of time bombs for each community building in the United States.
The symptoms of the time bomb are mold.
The reason for the mold is the unmanaged water in the building environment.
Once the building equipment loses its function, it loses the necessary understanding of how and why they operate.
Architects and builders no longer need to understand how the building works, and they are free to decide how the building looks.
Their products are satisfying but not functional.
One of the most influential analyses of American architecture is James Marston Fitch's American Architecture: The power of the environment that shapes it.
Fitch pointed out that one aspect of shaping the building is to maintain a comfortable indoor temperature and humidity.
In the past, in the warm and humid south, a very light house was built with a large opening and a deep protruding part, maintaining a comfortable environment.
Large houses with small openings maintain a comfortable environment in the southwest.
The New England clapboard house is livable with a large central fireplace, large windows and blinds.
Today, in addition to a solar house or a "green" house, the internal environment of most buildings is maintained by the brute force of the stove and air conditioner.
Build thin, all-
The glass building in New York, because it will freeze in winter, will scorch in summer. A Cape-
The Cod cottage makes no sense in Arizona as it becomes a little DutchThere is an oven all summer.
However, both options are perfectly reasonable today because we have environmental equipment that can overwhelm the impact of the natural environment.
This seems benign enough because it makes certain environments livable.
However, the original function of the building housing and the operation of the environmental equipment have lost contact.
The decorative architectural style of the building is not developed to meet the needs of keeping the interior dry, it is also developed to maintain a livable indoor environment.
These two aspects of style are inseparable.
Now, architectural style often conflicts directly with environmental equipment that strives to maintain a livable environment.
For example, in order for a new Italian stucco villa to be livable in Miami in the summer, a large amount of air conditioning and dewetting is required.
This creates a micro-refrigerator in a tropical setting.
This is not a "natural" phenomenon.
It is completely artificial and maintained by electricity and insulation.
It is also completely modern.
Traditional architecture does not face the combination of such conditions and there is no traditional way to deal with its side effects.
What are the side effects of this little cold world sitting in the Caribbean air?
Imagine a large glass of iced tea on a table on the August Miami balcony.
Soon it was covered with water condensed from the air, and soon it sat in a puddle.
Now imagine the house as a cup of iced tea.
Soon, it can also be covered with water.
When the warm air cools, the steam water dissolved in it cools and becomes liquid water, which is a natural fact.
Therefore, generally speaking, the cool air is more dry than the wet air.
Warm/humid air the water of steam that is invisible in the first place becomes liquid and is no longer suspended in the air.
Finally, it is on the table around a cup of iced tea.
In the air conditioner, the steam cools on the cooling coil, turns into water, drops into the pan, and is delivered to the drain pipe through the pipe.
This is why the dehumidifier has to be connected to the drain pipe through a pipe or has to empty the pan frequently.
However, if the warm air is cooled inside the wall, the steam will also return to the water inside the wall, and the water will be deposited in an uncontrolled, unexpected position.
This is the problem only when warm/humid air is pulled through the walls to a cool/dry environment that causes condensation.
But why is the warm/humid air pulled in or out of the wall?
There may be exhaust fans in constant operation, or air conditioning equipment may actually cause some areas to be in a slight vacuum.
The pressurizing of the building can inflate the building so that the air is discharged through the wall.
High-rise buildings create their own stacking effect, bringing air into the ground floor.
How does air enter the wall?
Buildings are generally not air. tight.
The air can penetrate, although there are cracks around the gaps in the walls and window frames, and are pulled down from the attic or on the floor.
But even if there is no air flow at all, the moisture will move.
It moves in a very vague way called steam pressure.
This is when a high concentration of moisture dissolved in warm/humid air tries to dry with the natural force air produced when it is balanced with a high concentration of moisture dissolved in adjacent cool/humid air.
This is nothing more than an intuitive concept of "water seeking its own level.
"This phenomenon is very obvious, because potato chips will eventually become soft if they are placed in paper bags, no matter how tightly sealed.
The steam presses the moisture through the paper until it is as wet in the bag as there is no air, although the movement of the air is negligible.
Therefore, in the case of the Italianate building in Miami, water vapor from the outside penetrates through the air or steam pressure introduced by the gap into the outer wall.
Inside the wall, it gradually cools down and water vapor condenses into liquid water.
Mold growth now meets all four conditions.
There are spores on the wall because there are spores everywhere in the environment.
There is a large amount of organic matter on the studs and paper on the wall panel.
The temperature is right.
Now there is liquid water to ignite the fuse of mold growth. Don Erwin, R. A.
President Rice of LZA Technology is an architect specializing in forensic investigations and analysis of existing building properties.
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