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Table 5. Las Vegas Parametric Simulations
| Simulation Number |
Input Deck Changes From Reference Case | Research Question Asked |
| 1 | 1:300 Attic Ventilation | Effect of reducing attic ventilation area from current Las Vegas building code |
| 2 | Sealed Attic, R-28 insulation on flat ceiling | Effect of just sealing attic |
| 3 | Sealed Attic, R-40 insulation on flat ceiling | Effect of sealing attic and increasing insulation |
| 4 | Sealed Attic, R-28 insulation under roof slope | Effect of sealing attic and moving insulation under roof slope (air and thermal barrier at roof plane) |
| 5 | Sealed Attic, R-40 insulation under roof slope | Effect of sealing attic and moving insulation under roof slope and increasing insulation |
| 6 | Sealed Attic, R-28 insulation under roof slope, White tile roof |
Effect of sealing attic and moving insulation under roof slope and using white tile on roof |
| 7 | White tile roof | Effect of white tile roof alone |
| 8 | Ducts in conditioned space | Effect of placing ducts inside conditioned space (conduction heat transfer effect only, no duct leakage) |
| 9 | Duct leakage, 10% return side, 5% supply side, (return leak comes from: 70% attic, 20% garage, 10% outdoors) |
Effect of average amount of duct leakage (based on measurements from 160 Florida homes, the average return side leak was 11% of the total flow, and the estimated average supply side leak was 5% (Cummings 1991)) |
| 10 | Duct leakage, 15% return side, 10% supply side | Effect of greater than average amount of duct leakage |