Has anyone ever heard of blower door depressurization effecting infants ears?  Is there a place where one could find out more about the subject?  Met a respectable individual that would not perform door testing with homes that have infants present.  Seems like something that could be of concern.  Thanks in advance for your thoughts and info.

Views: 160

Reply to This

Replies to This Discussion

Here is a chart I did showing the pressures:

Unit to pascal 25 Pa 50 Pa 75 Pa
1 atmosphere = 101,325 Pa 0.000 247 0.000 49 0.000 74
1 bar = 100,000 Pa 0.000 25 0.000 50 0.000 75
1 PSI = 6,894.76 Pa 0.003 63 0.007 25 0.0108
1 in Hg = 3,386 Pa 0.007 0.015 0.022
1 in H2O = 249 Pa 0.10 0.20 0.30
1 mm Hg = 133 Pa 0.19 0.38 0.56
1 millibar = 100 Pa 0.25 0.50 0.75
1 PSF = 47.88 Pa 0.52 1.05 1.56

That is not enough to affect a baby (nor break window seals, etc...) but with that said I also would not want to do a blower door test with an infant or very small child in the house as one is not sure what containiments one might be pulling in, nor how healthy that infant is.

I agree with Sean about "the other contaminants" and in general, whether they understand how slight 50pa is or not, that doesn't stop them from telling everyone you did bad.

But, here is another example of how small 50 pa really is.  When you drive to a higher elevation, you can feel your ears pop.  A change in elevation is understood to be associated with a change in pressure.  Walk from a basement to the second floor and you will experience about 50 pa decrease in pressure.  Walk back to the basement and it increases by the same.

Our manometers cannot see this shift in atmospheric pressure, their design does not allow it, but that is another thread.  But explaining to a home owner that the 50 pa is about the same as top to bottom of a 2-story house might help.

Atmospheric pressure near sea level decreases about 3.5 pa per foot you go up.

Bud

Nice point Bud & I might have to actually add that to the article assuming you don't mind

Not at all.

Bud

RSS

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Kurt Shafer commented on Hal Skinner's group The RCC Classroom (Radiant Control Coatings)
"Hal, do I see a terrific chance for you to show us all the power of your RCC? Your father's…"
5 minutes ago
Hal Skinner replied to Kevin Jordan's discussion Does anyone have pointers on approaching real estate induatry.
"Kevin, Several years ago I worked closely with a general contractor and a real estate…"
10 minutes ago
Hal Skinner commented on Hal Skinner's group The RCC Classroom (Radiant Control Coatings)
"That same RCC, used as paint on the ceiling of living space, will do the same as if it was applied…"
31 minutes ago
John Nicholas commented on Michael Stuart's group INFRARED THERMOGRAPHY USERS
"Don,  You are incorrect!  This is *NOT* the only course available that meets the ASNT…"
42 minutes ago
Craig Bird commented on Hal Skinner's group The RCC Classroom (Radiant Control Coatings)
"Correct, that is exactly what I said"
1 hour ago
Hal Skinner commented on Hal Skinner's group The RCC Classroom (Radiant Control Coatings)
"At 1.7% enterng the structure, that Radiant barrier is now going to allow the R-rated insulation/s…"
1 hour ago
Craig Bird commented on Hal Skinner's group The RCC Classroom (Radiant Control Coatings)
"And how much of that 1.7% of the suns energy that got through the RB or RCC gets into the house,…"
2 hours ago
Hal Skinner commented on Hal Skinner's group The RCC Classroom (Radiant Control Coatings)
"OK.  This might be rudamentary here.  I want to make sure everyone understands how SOLAR…"
2 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service