Before you lay new turf, the topsoil should be level and lump-free to ensure that the turf's roots contact the ground. In hot conditions, wet the soil lightly before laying the turf. Start laying along your area's longest straight edge, and lay across slopes, never down them. Stagger the turf in a brickwork pattern, and make sure that the strips meet without gaps in between them. Water the new turf within 20 minutes of laying.