Technical Resource Guide_WEB_BEL25-D-516650 - Page 12 of 84

12 | belgard ® product installation guide | belgard.com | 877-235-4273 Construction Guidelines UTILITY LOCATION Before beginning any phase of the construction process, make sure that all underground utilities, services and structures have been located and clearly marked on the ground surface in all areas involved in the construction process including access lanes. In many areas, a single number, such as Miss Utilities, may be called. Items to be located are: • Electrical • Sanitary sewer • Gas • Septic tank • Water supply • Telephone • Storm sewer • Cable TV • Drainfield • Irrigation piping Double check; there may be other items particular to the jobsite. SITE ACCESS Before any demolition, delivery or construction equipment is allowed on site, make sure that there are no hazardous conditions such as overhead electric lines in the way. Plan all activities so that no damage will occur to existing pavements, structures, trees, shrubbery, gardens or other site amenities. LAYOUT Identify the area to be excavated and mark it on the ground with spray paint. Make sure the area to be excavated is at least 12 in. wider on all outside edges than the size of the pavement. Place grade stakes with string lines just outside the area to be excavated, making sure that the excavation is at least 12 in. wider than the edge of pavement. Mark the elevations on the stakes so that the depth of excavation can be checked as it progresses. Use nylon mason's line and set it at the finished elevation of the pavement. Measure all excavations and base thickness from these lines. Set the initial elevations and check them at the beginning of each day with a builders level. Make sure the stakes have not been moved or interfered with. String lines set at final or finished elevations should be sloped. All lines (and final elevations of the pavement) should slope away from the house or building. The minimum recommended slope is 1.5 percent or a drop of 3/16 in. for every foot of pavement. Many pavements are sloped at 2 percent or 1/4 in. per every foot of pavement as this will better facilitate drainage. The maximum slope for comfortable walking is 7 degrees or about 12 percent. A builders level should be used to establish elevations using marks on stakes set around the area to be paved. Wood or steel stakes Paint line marks edge of excavation.Excavation is minimum 12" wider than edge of pavers String lines pulled tight to required slope and elevations Job Layout and Staking