ISO 15686 is the in development

ISO The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Me ...

standard dealing with service life planning. It is a

decision process In psychology, decision-making (also spelled decision making and decisionmaking) is regarded as the cognitive process resulting in the selection of a belief or a course of action among several possible alternative options. It could be either rati ...

which addresses the development of the

service life A product's service life is its period of use in service. Several related terms describe more precisely a product's life, from the point of manufacture, storage, and distribution, and eventual use. Service life has been defined as "a product' ...

of a building component,

building A building or edifice is an enclosed Structure#Load-bearing, structure with a roof, walls and window, windows, usually standing permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, a ...

or other constructed work like a

bridge A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, whi ...

tunnel A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ve ...

. Its approach is to ensure a proposed

design life The design life of a component or product is the period of time during which the item is expected by its designers to work within its specified parameters; in other words, the life expectancy of the item. Engineers follow a theory to calculate th ...

has a

structured response Structuring, also known as smurfing in banking jargon, is the practice of executing financial transactions such as making bank deposits in a specific pattern, calculated to avoid triggering financial institutions to file reports required by law ...

in establishing its service life normally from a reference or estimated service life framework. Then in turn secure a life-cycle cost profile (or

Whole-life cost Whole-life cost is the total cost of ownership over the life of an asset. The concept is also known as life-cycle cost (LCC) or lifetime cost, and is commonly referred to as "cradle to grave" or "womb to tomb" costs. Costs considered include the ...

when called for) whilst addressing environmental factors like life cycle assessment and service life care and end of life considerations including

obsolescence Obsolescence is the process of becoming antiquated, out of date, old-fashioned, no longer in general use, or no longer useful, or the condition of being in such a state. When used in a biological sense, it means imperfect or rudimentary when comp ...

and

embodied energy Embodied energy is the sum of all the energy required to produce any goods or services, considered as if that energy were incorporated or 'embodied' in the product itself. The concept can help determine the effectiveness of energy-producing or ...

recovery. Service life planning is increasingly being linked with

sustainable development Sustainable development is an approach to growth and Human development (economics), human development that aims to meet the needs of the present without compromising the ability of future generations to meet their own needs.United Nations General ...

and wholelife value. The objective of service life planning is to provide

reasonable assurance __NOTOC__ Reasonable may refer to: * Reason, the capacity for rational thinking * Reasonable accommodation, An adjustment made in a system to accommodate an individual's need * Reasonable and non-discriminatory licensing, a licensing requiremen ...

that the estimated service life of a new building on a specific site, with planned maintenance, will be at least as long as the

design A design is the concept or proposal for an object, process, or system. The word ''design'' refers to something that is or has been intentionally created by a thinking agent, and is sometimes used to refer to the inherent nature of something ...

. Service life planning facilitates the making of well-informed decisions regarding

value engineering Value engineering (VE) is a systematic analysis of the functions of various components and materials to lower the cost of goods, products and services with a tolerable loss of performance or functionality. Value, as defined, is the ratio of func ...

cost planning Cost is the value of money that has been used up to produce something or deliver a service, and hence is not available for use anymore. In business, the cost may be one of acquisition, in which case the amount of money expended to acquire it is ...

maintenance planning The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure and supporting utilities in industrial, business, and residential installat ...

, and

environmental impact Environmental issues are disruptions in the usual function of ecosystems. Further, these issues can be caused by humans ( human impact on the environment) or they can be natural. These issues are considered serious when the ecosystem cannot reco ...

. As service life cannot be estimated precisely, the objective requires the making of an appropriately reliable estimate of the service life of the building using available

knowledge Knowledge is an Declarative knowledge, awareness of facts, a Knowledge by acquaintance, familiarity with individuals and situations, or a Procedural knowledge, practical skill. Knowledge of facts, also called propositional knowledge, is oft ...

relating to the service life of each material, component, assembly, and

system A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its open system (systems theory), environment, is described by its boundaries, str ...

that is to be used in the building. If the estimated service life of any of these is likely to be less than the

of the building, a decision should be made as to whether

maintenance The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure and supporting utilities in industrial, business, and residential installa ...

repair The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure and supporting utilities in industrial, business, and residential installat ...

, or replacement could ensure that its essential functions could be adequately maintained. To assist with

specification A specification often refers to a set of documented requirements to be satisfied by a material, design, product, or service. A specification is often a type of technical standard. There are different types of technical or engineering specificati ...

and

, and avoidance of

and

waste Waste are unwanted or unusable materials. Waste is any substance discarded after primary use, or is worthless, defective and of no use. A by-product, by contrast is a joint product of relatively minor Value (economics), economic value. A wast ...

, service life planning may include projections of the needs for, and timing of replacement and end of life recovery. 15686 for service life planning is being prepared by Technical Committee ISO/TC 59,

Building construction Construction are processes involved in delivering buildings, infrastructure, industrial facilities, and associated activities through to the end of their life. It typically starts with planning, financing, and design that continues until the a ...

Subcommittee A committee or commission is a body of one or more persons subordinate to a deliberative assembly or other form of organization. A committee may not itself be considered to be a form of assembly or a decision-making body. Usually, an assembly o ...

SC 14,

Design life The design life of a component or product is the period of time during which the item is expected by its designers to work within its specified parameters; in other words, the life expectancy of the item. Engineers follow a theory to calculate th ...

. In Great Britain, the new British Standard BS ISO 15686-5:2008 Buildings and constructed assets. Service life planning is currently being launched (September 2008). The life cycle costing standard and the additional Standardized method of life cycle costing for construction (SMLCC) provide an in-depth guide to life cycle costing, an area of increasing importance. The BSI explains that "the UK building industry recognizes that life cycle costing (LCC) is necessary and important, but confusion exists about the best method to realise the economic and environmental benefits of such costing".

List of sub standards

# ISO 15686-1 Buildings and constructed assets - Service life planning: Part 1, General principles and framework # ISO 15686-2 Buildings and constructed assets - Service life planning: Part 2, Service life prediction procedures # ISO 15686-3 Buildings and constructed assets - Service life planning: Part 3, Performance audits and reviews # ISO 15686-4 Buildings and constructed assets - Service life planning: Part 4, Service Life Planning using IFC based Building Information Modelling # ISO 15686-5.2 Buildings and constructed assets - Service life planning: Part 5, Life-cycle costing # ISO 15686-6 Buildings and constructed assets - Service life planning: Part 6, Procedures for considering environmental impacts # ISO 15686-7 Buildings and constructed assets - Service life planning: Part 7, Performance evaluation for feedback of service life data from practice # ISO 15686-8 Buildings and constructed assets - Service life planning: Part 8, Reference service life and service-life estimation # ISO 15686-9 Buildings and constructed assets - Service life planning: Part 9, Guidance on assessment of service-life data # ISO 15686-10 Buildings and constructed assets - Service life planning: Part 10, When to assess functional performance # ISO 15686-11 Buildings and constructed assets - Service life planning: Part 11, Terminology

Further developments

* Parts 1-3 and parts 5-10 have been published. The others are "Under development". * Further information may be obtained from ISO

Geneva Geneva ( , ; ) ; ; . is the List of cities in Switzerland, second-most populous city in Switzerland and the most populous in French-speaking Romandy. Situated in the southwest of the country, where the Rhône exits Lake Geneva, it is the ca ...

or BSI

Chiswick Chiswick ( ) is a district in West London, split between the London Borough of Hounslow, London Boroughs of Hounslow and London Borough of Ealing, Ealing. It contains Hogarth's House, the former residence of the 18th-century English artist Wi ...

London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...

References

External links

CIB W80
{{ISO standards #15686