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Re: GSBN:Danny Buck's SB water problem

I have two comments, in reaction to other postings.  I agree with John
Straube, that using sufficiently heated air can dramatically speed drying,
and will not excessively promote mold growth, if the temperature of the
drying air can be maintained at the levels he indicates (120-160 degrees
F).  It will be important to monitor the temperatures experienced by the
damp straw, since the heated air will be cooled as it is delivered to the
bales, and by the very evaporation that we aim to achieve.  Still, if the
air at the interface with the drying straw is above 110 degrees F, I think
the enhanced drying will be a significant advantage, and will decrease the
risk of mold growth.  As John mentioned, the problem of excessive fungal
growth comes from offering molds warm, moist air in the neighborhood of
70-90 deg F.

I also agree with Paul Lacinski's comments, and react only to the final
word in his suggestion quoted below:

It should then be possible to retrofit a flashing pan from
below, either of bituthane or aluminum or lead.

I would plead with all of us to avoid using introducing more lead (or other
toxic, persistent materials) into the environment, especially when viable
alternatives are available, such as the two Paul mentions.  Lead flashing
is used to deal with rain water.  That flowing water will introduce lead
compounds into the soil, ground water, and our streams, lakes and rivers.
In addition, it is likely that the lead will not be properly handled during
remodeling and the eventual demolition of the building.

Minimizing toxic materials is a continuing challenge to all builders, and I
intend no criticism of Paul.  I just wanted to offer another call for
attention to the issue.


Derek Roff
Language Learning Center
Ortega Hall 129, MSC03-2100
University of New Mexico
Albuquerque, NM 87131-0001
505/277-7368, fax 505/277-3885
Internet: derek@...