The baseline scope of the International Standards of Practice for Inspecting Commercial Properties (ComSOP) excludes predicting service life expectancy, providing repair estimates, or offering opinions of cost to remedy. However, understanding concepts like Estimated Useful Life (EUL), Remaining Useful Life (RUL), and Maintenance Frequency helps inspectors interpret observed conditions from an inspection, as well as go beyond the baseline scope to offer services and professional opinions, such as:
- Opinions of costs for maintenance, repairs, and replacements
- Context for observed conditions, recommendations, and conclusions in reports
- Priority and urgency of observed property conditions
- Cost to remedy tables
- Reserve forecast tables and other capital planning inspection services
- Maintenance-focused inspections
The EUL is the estimated operational lifespan of a system or component before replacement or significant repairs are required for continued operation, assuming normal operating conditions and reasonable maintenance practices. It’s a standardized number based on industry data and manufacturer information. It’s also referred to as useful life (UL) or life expectancy. The RUL is a subjective estimate made by the inspector of the number of remaining years a building element is expected to remain functional before needing replaced. Maintenance frequency refers to the projected interval, in years, at which a specific maintenance activity is expected to occur for a system or component.
Refer to the Understanding the Estimated Useful Life of Commercial Building Systems article to learn more, or download the PDF charts and guides below for a more comprehensive look.
Estimated Useful Life (EUL) Chart and Remaining Useful Life (RUL) Guide PDF
The EUL is a reference number, not a a guaranteed service life for a specific building element. Actual timelines vary based on installation, environment, use, and upkeep. It’s used along with the components effective age to calculate the RUL. Depending on the scope of service, the UL and RUL are often included in cost to remedy, reserve forecasting, and other cost projection reports. Having a general understanding of these concepts can also help provide context in the field when assessing property conditions and offering opinions in reports, such as recommendations and conclusions. Refer to the Free Estimated Useful Life Chart, or download the PDF below included with CCPIA® membership for future reference or to share with clients with a report or in marketing materials.
Estimated Useful Life (EUL) and Maintenance Frequency Chart PDF
The EUL and maintenance frequency represent two lifecycle clocks. One is tied to major repair or replacement, and the other is tied to expected maintenance activities. When maintenance is deferred, deterioration accelerates and replacement or substantial corrective work may be required sooner than the EUL, increasing the element’s effective age. Viewing these estimates side by side adds the maintenance interval and care history factors that affect condition and projected maintenance costs. This is what distinguishes the combined chart from the EUL-only chart. Download the PDF below included with CCPIA® membership for future reference or to share with clients with a report or in marketing materials.
Opinions of Costs for Suggested Remedies
Altogether, EUL, RUL, and maintenance frequency support assessing property conditions and understanding how to report them. Substantial repairs and replacements are often tied to EUL and RUL, while maintenance reflects planned work performed before a system or component fails. Deferred maintenance can fall between categories depending on the building element and current condition, but it often leads to significant repair or replacement.
These concepts connect directly to cost to remedy when providing opinions of immediate costs. When defining the scope of service, the inspector and client may set a dollar threshold, such as including items with costs exceeding $3,000 in the final work product. Maintenance items may fall within that threshold. In a reserve forecast, which projects costs across short-term, mid-term, and long-term tables, maintenance items may also be included. Defining the scope of service is important, as some clients want only physical deficiencies tied to repair or replacement. All of this supports inspection reporting that places property conditions in context based on care history and investment in proper upkeep.
The Cost to Remedy Fast-Track Course, held live on Zoom, reviews how to assess property conditions within the maintenance, repair, and replacement framework, and how to calculate costs for opinions of suggested remedies. Inspectors first determine the condition, then categorize it, identify the corrective action, and calculate the cost.
Refer to Cost to Remedy and Reserve Forecasting Resources for Commercial Property Inspectors page for additional guidance on