Antimicrobial Coating On Wood Framing


C

Code Guy

Does anyone use or know of a product that stops mold growth in walls
after the drywall has gone up. With the houses being so air tight could
this eliminate mold growth inside the walls.
 
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F

frippletoot

Code said:
Does anyone use or know of a product that stops mold growth in walls
after the drywall has gone up. With the houses being so air tight could
this eliminate mold growth inside the walls.
The key is to build the house right so there ARE no moisture/water
problems. This can be done, despite builder's excuses that it can't.
http://www.jlconline.com and http://www.buildingscience.com to name
just two sites that might be helpful.
 
C

Code Guy

We are not talking about poorly constructed homes. With homes built 99%
air tight how do you control the moisture from showers, cooking and
cleaning. Your web site does not address those problems.
 
F

frippletoot

Code said:
We are not talking about poorly constructed homes. With homes built 99%
air tight how do you control the moisture from showers, cooking and
cleaning. Your web site does not address those problems.
It's not my website, I just posted the links. There are houses that
are "tight" and energy efficient that do not have moisture problems.
That is what the sites are for. You will have to do some poking around
there, I don't have direct links to exact pages on insulation,
ventilation, house wraps, etc. But you might find someone who does at
either of these forums:

http://bahrr.proboards32.com/index.cgi

http://ths.gardenweb.com/forums/build/

(Those aren't my sites either. I don't have a site.)

Bottom line is don't let any builder tell you that moisture/leaks can't
be prevented or that all homes have mold. Sure, they all have mold
spores in them because it's in the air. But they only become a problem
if the house has defects that allow the mold to grow, mainly inside
walls etc where it can do a lot of damage. I am not even going to get
into the alleged health effects of mold. It's enough that it rots a
house.

Good luck building, you are wise to educate yourself well, from the
start.
 
T

teabird1977

Code said:
Does anyone use or know of a product that stops mold growth in walls
after the drywall has gone up. With the houses being so air tight could
this eliminate mold growth inside the walls.
When they say the house is built 99% air-tight, they mean from the
outside and from the inside. Of course you need it to be water and air
tight from the outside, and the drywall and interior trim and finish
should be 99% air tight from the inside. So there should be no
moisture present inside the walls, and no need for anti-microbial
treatment.

To address the accumulated moisture from inside the house from showers,
washing dishes, etc, you need adequate ventilation to remove this humid
air from the house. With a new, air-tight house, this can be difficult
unless you provide replacement air. This was not as big an issue with
older homes as enough replacement air would leak in around windows,
under doors, etc. I would definitely get a heat recovery air exchanger
if I lived in a new house.

James
 
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C

Code Guy

When we build houses down south (FL) new or old they all have mold in
them after 2 or 3 years. Some times there is mold growing in the
framing before we get the roof on. Mold is a trigger for asthma and
asthma is way up since we started using house raps. My son has asthma
and I will be building a new house in the next year. I was thinking if
I used an Antimicrobial Coating on the interior framing that would stop
all mold growth.

I have installed 2 air handlers in my HVAC on this house and I was told
you are just exchanging mold spores for the outside to the inside air.
 

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