[GSBN] SB Lighthouse, CMHC moisture research (was Canadian research into straw bale swimming pools)

[Bill Christensen]

I'm also curious about these numbers.  What is the percentage of 
moisture being compared to?  The total weight of what it has absorbed 
into?  A glass of water, in my book, is 100% moisture content.  100% 
means "all water" in this case.  Relative humidity of 100% in air means 
it can't hold any more for the current temperature, and begins condensing.

So are we comparing against the volume or weight of cellulose?   Or what?

Bill "90% of the game is half mental" Christensen

On 1/29/12 4:56 PM, John Straube wrote:
> 300% is easy.  A glass of water can have 5000%.
> Live wood regularly as 100-125% wood MC. Straw being lighter could be 
> 300%, but I would only ever trust a gravimetric measure, not an 
> instrument, to read this.
>
> Some wood absorbs to 200% and will sink to the bottom of lakes before 
> it makes it to the sawmill.
>
> Dr John Straube, P.Eng.
> www.BuildingScience.com
>
> On 12-01-29 12:48 PM, martin hammer wrote:
>>
>>
>> Speaking of % moisture content, and at the other end of the spectrum 
>> (way beyond, actually), in the CMHC Straw Bale House Moisture 
>> Research paper regarding bales in floors, as Habib mentioned, it does 
>> say "Some were as wet as 300 per cent moisture content . . .".
>>
>> I love and respect the whole series of CMHC research papers and test 
>> reports.  But how can anything be 300% moisture content?

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