[Strawbale] water in attic

[Speireag Alden]

On 2008, Jan 08, at 15:14, Alan Abrams wrote:

> If the bottles are arrayed upright, in a hex pattern, and each  
> bottle is 4"
> in diameter (or spaced 4" oc on the 60d grid), then you would have  
> about
> 20.5 liters / sf.  (I drink my whiskey straight, so have no softdrink
> bottles at hand to measure)  Unmixing US and furrin mensuration,  
> that's
> about 45 PSF, not counting the plastic bottles.  IRC design for attic
> storage is 20 PSF live load.

     You're assuming, though, that you pack the water in as densely  
as possible.  I'm guessing that for day-to-day temperature moderation  
you'd need a lot less than the theoretical maximum volume.  So only  
put in every third bottle in your mental diagram, and you're within  
the design load.

-Speireag.