
4.4Concrete Pad Construction
Use the following procedure to construct the concrete pad:
1.Build a wood form for the concrete pad using 2 x 6 framing lumber as shown in Figure 9.
2.Locate the PMF as shown in the construction diagram (see Figure 8). When installed, the top surface of the PMF must be flush and level with the top of the concrete pad.
Note: Use temporary top framing to keep the top surface of the PMF flush and level with the top of the concrete pad (see Figure 9).
3. Place reinforcing material inside the form but outside of the PMF.
44 IN.
(111.8 CM)
DIMENSIONS SHOW FINISHED
SIZE OF CONCRETE PAD
72 IN.
(182.9 CM)
| 2 x 6 FRAMING | |
|
| FOR FORM |
| PAD MOUNT |
|
| FRAME (PMF) |
|
| TEMPORARY | |
LEVELING | SUPPORT WIRES | |
(4 PLACES) |
| |
STAKES |
|
|
(4 PLACES)
Figure 9.
4.Verify that the PMF and form are level. Depending on the landscaping requirements, the top surface of the concrete pad may be 0 to 3 inches (0 to 7.6 cm) above the final grade. The weld nuts are covered with plugs which must be left in place until the enclosure is mounted.
5.Pour the concrete to form the pad but do not pour concrete into the center area of the PMF.
Note: Allow some concrete to flow under the flanges on the bottom of the PMF so the PMF will be locked in place when the concrete hardens. However, do not allow concrete to fill the center of the PMF. If necessary, partially fill the center of the PMF with sand or gravel to prevent an inflow of concrete.
6.Remove the top framing and the temporary support wires when the concrete is ready to be finished.
7.Allow concrete to cure before proceeding with the installation.
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