ISO 15686

ISO 15686is the in developmentISOstandard dealing withservice life planning.It is adecision processwhich addresses the development of theservice lifeof abuilding component,buildingor other constructed work like abridgeortunnel.Its approach is to ensure a proposeddesign lifehas astructured responsein establishing its service life normally from a reference or estimatedservice life framework.Then in turn secure alife-cycle cost profile(orWhole-life costwhen called for) whilst addressing environmental factors likelife cycle assessmentandservice life careandend of lifeconsiderations includingobsolescenceandembodied energyrecovery.Service life planningis increasingly being linked withsustainable developmentandwholelife value.

Theobjectiveof service life planning is to providereasonable assurancethat the estimated service life of a new building on a specific site, with planned maintenance, will be at least as long as thedesign.Service life planning facilitates the making of well-informeddecisionsregardingvalue engineering,cost planning,maintenance planning,andenvironmental impact.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 availableknowledgerelating to the service life of each material, component, assembly, andsystemthat is to be used in the building.

If the estimated service life of any of these is likely to be less than thedesign lifeof the building, a decision should be made as to whethermaintenance,repair,or replacement could ensure that itsessential functionscould be adequately maintained. To assist withspecificationanddesign,and avoidance ofobsolescenceandwaste,service life planningmay include projections of the needs for, and timing of replacement and end of life recovery.

15686 for service life planning is being prepared byTechnical CommitteeISO/TC 59,Building construction-SubcommitteeSC 14,Design life.

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. TheBSIexplains 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

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

External links

• CIB W80