During an air test, we're allowed to de-pressurize or pressurize your dwelling by up to 100 Pa or Pascals. Now, common questions I have is, "Will I die?","Is my dog going to be okay?", "Will it break my China?".
The answers are no, yes, and no. All this test does is make you bald and fat after doing a thousand or so. See below :)
So, say we apply 100 Pa to your dwelling / house. What can you compare this to? Well, One atmosphere is 101,325 Pa, and that means that if the barometric pressure outside is high, 1024 or so, and I de-pressurize it by 100 Pa, then it is still going to 1024 :) Applying this another way, on a 400 cubic meter house (typicalish in the UK), I would be applying 400 * 25 pounds of pressure or 100 pounds of pressure to the house. If you compare this to the change of barometric pressure, when it moves from 1023 to 1024, it is applying 1,042,500 pounds of pressure on your house. By the way, this happens all the time, and barometric pressure can swing 10 bars in a day or 10 million pounds of pressure across 24 hours if not more.
Now, some mathematical genius is going to come along and dispute these figures, but the truth of the matter is, you really aren't going to notice a change in your house by my dinky little old fan in your door.
Matt
For more information or to book a test, call me on 0793 091 5595 or visit my website on http://www.hometestingyorkshire.co.uk/
No comments:
Post a Comment