Oh, I know that I am originally from New Hampshire but in El Paso relative humidity 15% the last 3 months on average. When I drill through the concrete to determine slab thickness I have yet to see ground cover under concrete commercial or otherwise. Rainfall not sure but maybe 1 foot a year. Water from Rio Grande and real deep wells here.
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RE: insuti testing - jim decker - 03-20-2013, 07:42 AM
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