[Greenbuilding] Relative humidity in heated houses

[Vadurro, Rob, EMNRD]

Having grown up in the swamps of New Jersey and now living in Santa Fe,
NM where in the summer we usually get a few days of single digit RH, I
definitely find it easier to live with low humidity. That said, the most
annoying problem of low humidity I find is static electricity. It can be
downright painful sometimes (walk across the carpet and kiss your child,
for instance) and I wonder how badly it affects electronic devices. 
Low humidity is definitely more comfortable when it's hot out. Low
humidity in the cold isn't much of a problem, skin-wise, because your
clothes form a sort of microclimate of higher humidity.

Rob Vadurro AIA, LEED AP
Park Architect
New Mexico State Parks
P.O. Box 1147
Santa Fe, NM 87505
505-476-3383
505-476-3361 (fax)

-----Original Message-----
From: greenbuilding-bounces at lists.bioenergylists.org
[mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of
JOHN SALMEN
Sent: Wednesday, October 27, 2010 5:57 PM
To: ArchiLogic at chaffyahoo.ca; greenbuilding at lists.bioenergylists.org
Subject: Re: [Greenbuilding] Relative humidity in heated houses


Nosebleeds too and its really hard to insert nasal cannula in that kind
of
environment. 

At about 60% plus plus our cooking we are the cause - buildings would do
so
much better without us.

JOHN SALMEN ENVIRONMENTAL DESIGN
4465 UPHILL RD,. DUNCAN, B.C.  CANADA, V9L 6M7
PH 250 748 7672 FAX 250 748 7612 CELL 250 246 8541
terrain at shaw.ca


-----Original Message-----
From: greenbuilding-bounces at lists.bioenergylists.org
[mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of RT
Sent: October 27, 2010 3:58 PM
To: greenbuilding at lists.bioenergylists.org
Subject: Re: [Greenbuilding] Relative humidity in heated houses

WatJohn wrote:

> I have seen many people with serious health impacts becauseof too high
a  
> humidity,and never seen low humidity actually connected to health  
> problems

I find these comments to be surprising.

I've just assumed that it was understood that too low humidity has the  
effect of drying out the protective mucous layer on our nasal membranes

making them and us more susceptible to cold and flu viruses, not to  
mention the "crusty nose" syndrome, dry itchy skin, dandruff etc.

Further, lower humidity has the effect of increasing the rate of  
transpiration from our bodies so that at the same temperature, some
people  
may feel colder.

These are experiential observations rather than conclusions based on  
peer-reviewed scientific research.

Me ? I like the feel of 45-60% interior RH in winter, which I don't find

at all surprising given that our bodies are roughly that percentage
water.

As Forrest Gump would say "Stupid is as stupid does" ... or something
like  
that.

-- 
=== * ===
Rob Tom
Kanata, Ontario, Canada
< A r c h i L o g i c  at  Y a h o o  dot  c a >
manually winnow the chaff from my edress if you hit "reply"
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