Replies

1. 
   FastEddie | Apr 20, 2007 08:45pm | #1

   The lower layer of fabvric should work.  If you add a second layer, what's to keep the flagstone from shifting around?  I would think you would want the exposed stone dust to be able to squish around the underside of the flagstone and fill all the crevices.

   "Put your creed in your deed."   Emerson

   "When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it."  T. Roosevelt

1. 
   JoeJoyce | Apr 20, 2007 09:25pm | #2

   One other thought I had was to put the stones very close together with less than 1/16" separating them and not use stone dust or sand in between them.  Would that work?

1. 
   FastEddie | Apr 20, 2007 10:35pm | #3

   1/16" is tight, even for ceramic tile work.  No reason it won't work, as long as yopur stones are dimensionally correct.  What happens if a stone is 1/4" bigger than the others?"Put your creed in your deed."   Emerson

   "When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it."  T. Roosevelt

2. 
   CapnMac | Apr 20, 2007 10:55pm | #4

   Close spacing will help, if these are "regular" stones (I always picture flagstones as irregular--just me). 

   A jug of the pre-mix Roundup with the ready-to-go sprayer will run you under $20, and will generally zap any weedseed that blows onto the patio later (which will likely be the mechanism for weeds, not "grow through" so much).Occupational hazard of my occupation not being around (sorry Bubba)

3. 
   DoRight | Apr 20, 2007 11:31pm | #5

   If you don't fill the cracks nature will, or bread crumbs, or bits of fried chicken, or . . .

   Fill the cracks and look into some of those sand sealer products.  They are supposed to stablize the sand, keep in the joints and not moving around, and secondly make it less habitable for weeds.