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Table 3. Orlando Parametric Simulations

Simulation Input Deck Changes From Reference Case Research Question Asked
1 1:150 Attic Ventilation Effect of increasing attic ventilation area from current Orlando building code
2 Sealed Attic, R-19 insulation on flat ceiling Effect of just sealing attic
3 Sealed Attic, R-28 insulation on flat ceiling Effect of sealing attic and increasing insulation
4 Sealed Attic, R-19 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-28 insulation under roof slope Effect of sealing attic and moving insulation under roof slope and increasing insulation
6 White Tile Roof Effect of white tile roof alone
7 Sealed Attic, R-19 insulation under roof slope, White Tile Roof Effect of sealing attic and moving insulation under roof slope and using white tile on roof
8 Sealed Attic, R-28 insulation under roof slope, White Tile Roof Effect of sealing attic and moving insulation under roof slope and increasing insulation and using white tile on roof
9 Ducts In Conditioned Space Effect of placing ducts inside conditioned space (conduction heat transfer effect only, no duct leakage)
10 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))
11 Duct Leakage, 15% Return Side, 10% Supply Side Effect of greater than average amount of duct leakage

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