Abstract: A method for artificial turf installation utilizing micromechanical bonding for seaming between adjacent pieces of the artificial turf. The artificial turf comprises a backing which includes primary, secondary, and tertiary backing materials. The tertiary backing comprises a foam urethane lamination of an additional textile layer for attaching to the secondary backing (coating), and the tertiary backing is suitable for receiving hooks of a hook seaming tape which is positioned under the seam area of two adjacent pieces of artificial turf. After proper positioning of the two adjacent artificial turf pieces, micromechanical bonding is accomplished. An alternate embodiment of the method comprises the step of using pressure-sensitive seaming tape to bond to the tertiary backing of the artificial turf.

Abstract: A horizontally draining artificial turf system comprises an impervious base at proper slope, an impermeable layer or drainage blanket over the base at a corresponding slope for guiding water horizontally, an artificial turf at top of the impermeable layer, and a perforated pipe near the lower edge of the base for receiving water for evacuation. Rainwater over the artificial turf first drains vertically onto the impermeable layer and then flows along the impermeable layer to reach the perforated pipe, without infiltrating into the base. Alternatively, a partially pervious drainage blanket is provided in lieu of the impermeable layer where the base is partially pervious. Backup rainwater runs off the drainage blanket horizontally after it saturates the soils of the base.