[zippyt]

Now that would be an interesting experement , spray water on the roof of a structure in a freezing climit and see just how much weight it could take -v- spraying the whole structure , and if there truely was a difference . You could predict a weight , but to see just what type structure could take what kind of abuce would be interesting
Some truck scales are tested with a hydrolic press to see the working life and repatability , they call it the module masher , i have seen it , BIG damn rig !!! I will see if i can dig up a link .