Capillary break definition
Capillary break means a material or system installed to stop the movement of moisture into a building by capillary action. A capillary break may be provided by either one of two general methods: 1) use of a material that has pore sizes so small as to be essentially nonexistent, such as, but not limited to, sheet polyethylene and sheet metal: or, 2) use of material that has pore sizes so large that water cannot move through it by capillarity, such as, but not limited to, a 3 inch thick layer of clean 3/4 inch crushed stone.