Quote:
Originally Posted by Michael G.
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If you prefer a more permanent solution....
1.
Clean out the expansion gaps with a power wash and brush.
2. Allow to dry, then run a vacuum along the crack.
3. Buy (appropriate sized) filler rod from Amazon. Then fill the gap with the "rod" (foam rope) approximately 1/4" below the surface.
4. Lay down duct tape along the edge of the gap.
5. Fill the remaing "gap" with "gap filling" caulk (self leveling - available at local hardware store).
6. Remove the duct tape.
Did this 3 months ago and have not had one weed "grow" through!