| Item | Estimated Average Life |
|
| Roofing: | ||
| Asphalt Shingles | 10-20 yrs. | |
| Rolled Mineral | 7-10 yrs. | |
| Built-Up | 10-20 yrs. | |
| Slate | 35-80 yrs. | |
| Cement Tile | 20-40 yrs. | |
| Asbestos Cement Shingles | 40-60 yrs. | |
| Wooden Shingles | 10-25 yrs. | |
| Wooden Shakes | 20-40 yrs. | |
| Terra Cotta | 60-100 yrs. | |
| Metal | 60-100 yrs. | |
| Gutters: | ||
| Copper | 40-90 yrs. | |
| Galvanized | 20-30 yrs. | |
| Aluminum | 15-25 yrs. | |
Exterior
Kitchen and Bathroom
| Item | Estimated Average Life |
|
| Oven | 15-20 yrs. | |
| Cooktop | 5-20 yrs. | |
| Refrigerator | 15-29 yrs. | |
| Dishwasher | 5-15 yrs. | |
| Garbage Disposal | 5-15 yrs. | |
| Microwave | 5-15 yrs | |
| Toilet | ———– | |
| Tub | ———– |
Heating and Air Conditioning
| Item | Estimated Average Life |
|
| Furnace | 15-30 yrs. | |
| Heat Pump Compressor | 10-15yrs. | |
| Electric Baseboard | 15-50 yrs. | |
| Wall Convection Heater | 15-50 yrs. | |
| Thermostat | 20-30 yrs. | |
| Electric Compressor | 10-20 yrs. | |
| Window Air Conditioner | 10-20 yrs. | |
| Add Air Conditioning (Ducts Exist) | 10-20 yrs. | |
| Add Air Cond. & Ducts | 10-20 yrs. | |
| Add on Heat Pump | 10-20 yrs. | |
| Attic Fan | 10-25 yrs. |
Plumbing
| Item | Estimated Average Life |
|
| Water Heater (gas or electric) |
8-12 yrs. | |
| Water Heater (oil) | 10-15 yrs. | |
| Dryer | 10-20 yrs. | |
| Washer | 7-15 yrs. | |
| Jet Pump | 10-15 yrs. | |
| Submersible well Pump | 10-15 yrs | |
| Suction Pump | 10-15 yrs. | |
| Pressure Tank | 18-35 yrs |
Powerhouse Group