Water Sod During installation: Hand water sod as you are laying it down. No piece of freshly cut sod should be down for more than 30 minutes without getting water. This is especially important during these hot summer months, but don't neglect it when it's cooler out either.
We can't stress watering enough. New sod is highly perishable and will die if it dries out.
As soon as installation is complete (SAME DAY!): Thoroughly water your new lawn to establish moisture in the sod layer and the soil underneath it. If you are laying a lot of sod, water the area you've finished as you move on to the next area. Use common gardening sense: sod is perishable and will die if it dries out. Yes, we said it again!
For approximately 2 weeks after installation: Keep your new sod wet like a sponge until new roots form. Read further about Watering New Sod.