Table 2 Changes made before and after retrofit43.
From: Dataset on occupant behavior, indoor environment, and energy use before and after dormitory retrofit
SN | Parameter | Before Retrofit | After Retrofit |
|---|---|---|---|
1 | Year of Construction | 1972 | 2022 |
2 | Total Conditioned Space | 5500 ft2 | 5500 ft2 |
3 | Walls | 3 Layered Walls (Exterior to Interior): Layer 1: Precast concrete with 1 inch closed-cell extruded polystyrene (XPS) insulation (R-4.53) Layer 2: 2 × 4 wood framed with 3.5 inch of fiberglass batt insulation (R-8.55) Layer 3: Precast concrete extruded demising walls | 5 Layered Walls (Exterior to Interior): Layer 1: 3” Exterior insulated finishing systems (EIFS) (R-5.60) Layer 2: TREMCO NewBrick Layer 3: Precast concrete with 1 inch closed-cell extruded polystyrene (XPS) insulation Layer 4: 7/16” Oriented Standard Board (OSB) (R-0.27) Layer 5: 2 × 4 wood framed with 3.5 inch of fiberglass batt insulation. |
4 | Heating Units | Yes (Electric Baseboard Heater) | Yes (Heat Pump and Electric Baseboard Heater) |
5 | Cooling Units | No | Yes (Heat Pump) |
6 | HVAC (COP) | 1.0 | 3.0 (effective) |
7 | PV Units | No | Yes (40–50 kWh PV Array) |
8 | Windows Type and Material | Metal-framed, thermally broken, double-pane (non-Low-E, non-argon) sliding windows. | Double-pane Casement Windows with low-E coating |
9 | Window (U Value) | 0.64 | 0.28 |
10 | Window (SHGC) | 0.61 | 0.40 |
11 | Doors (R Value) | 2.27 (Insulated Metal Door) | 10 (Fiberglass External Door) |
12 | Heat Recovery Ventilation Systems | No | Yes (LUNOS E2) |
