Useful Life Guides
When you understand the typical useful life of an asset, you can determine its remaining useful life and probability of failure.
This information, combined with the consequence of failure, will allow you to calculate the business risk of each asset. And once you understand business risk, an asset management plan comes together easily.
This document breaks down the guidelines we use every day to calculate the useful life of most assets.
Real Property
| Asset Type | Useful Life (Years) |
|---|---|
| Elevators | 20-30 |
| Domestic Water Heaters | 10-15 |
| Boilers and Pumps | 10-25 |
| Central Air Handling Units | 25-30 |
| Exterior Doors - Aluminum/Hollow Metal | 20-30 |
| Emergency Generator | 30-40 |
| Single-Ply Membrane Roofing | 10-20 |
Drinking Water
| Asset Type | Useful Life (Years) |
|---|---|
| Valves (Mechanical) | 10-20 |
| Valves | 20-40 |
| Hydrants | 40-60 |
| Service Line (Galvanized) | 40-75 |
| Service Line (Copper) | 40-75 |
| Meter | 10-20 |