The answer to 'types of sod installation' is that there are several common methods for installing sod, including:
Soil Preparation - The soil must be properly prepared by tilling, leveling, and amending with topsoil or compost to create a smooth, fertile base for the sod.
Sodding - This involves laying pre-cut rectangular pieces of mature grass and soil, edge-to-edge, to create an instant lawn. Sod is the fastest way to establish a new lawn.
Hydroseeding - A slurry of grass seed, mulch, and water is sprayed directly onto the prepared soil, creating a uniform coverage. Hydroseeding is more cost-effective than sod but takes longer to establish.
Overseeding - Existing lawn areas can be improved by spreading grass seed over the top, which fills in bare spots and thickens the turf over time.