As seen in this specification example, specification plays a crucial role in every successful project, providing a clear representation of the built asset and creating a continuous, thorough, transparent thread of information to be used by owners, facilities managers, maintenance teams, and beyond to optimise use, reuse, and asset-end activities.
At its core, specification ensures the efficient and transparent exchange of information between client, designer and contractor. Through specification, you’re using words to describe things that can’t be visualised or explained via a drawing or model.
We use three types of specification in construction.
Prescriptive specifications provide details regarding what types of materials are used and how they are installed. This includes:
Performance specifications cover a project’s operational requirements and how a product should behave once installed. Performance specs generally entail a lot of testing to ensure the project is within stipulated operational parameters.
Proprietary specifications are used when a specifier wants to include a specific product range or type. Examples of projects that might require proprietary specifications include conservation and renovation projects with a need to match or integrate with existing materials and equipment.
By developing a good specification, you remove any confusion around a project’s requirements. Having clear information upfront means that the process will be both more efficient and effective. That, in turn, translates to time, effort and cost savings.
In 15 reasons why specifications are still important, NBS Technical Information Director Tina Pringle discusses digitisation in construction and the critical role specification has in a successful project process. Briefly, you should use specification if you want to:
In early 2021, NBS hosted a Collaborative Specification Writing webinar that looked at how specifiers and manufacturers can improve an asset’s safety, sustainability and efficiency through collaboration. Key lessons learnt were then put into an article entitled Three reasons to collaborate on a specification. Highlights include:
*The golden thread of information is a shorthand term used to describe digitally held building data that is accurate, up-to-date and accessible to everyone concerned. While not yet standard practice, this is the future of construction, capturing the digital fingerprints of the people involved, recording decisions made and creating transparency through a clear accountability trail.
Specification is an essential part of every successful project, and writing should being as early in the project timeline as possible. Amongst other things, early-stage specification is beneficial for:
A project specification is a living document. Creating it early on allows the specification to evolve and develop through the project timeline, thus providing vital information from project start through handover and asset management.
This article is based on an original article written in 2020 by the same author for The Construction Information Service. CIS is a comprehensive online collection of industry-relevant publications from around 500 publishers. NBS users with a CIS subscription can take advantage of embedded links across specifications platforms to access research and reference documents. The content is fully searchable, intelligently classified and continuously updated.
NBS Chorus is a flexible cloud-based specification platform that allows you to access your specifications across locations and organisations. It is suited to all specifying types, with editable clauses that are supported by technical guidance. Our content is continuously reviewed to improve clarity and usefulness, informed by research, user feedback and industry drivers.
NBS Source provides a single source of product information that seamlessly integrates into a project’s workflow and provides an additional level of enhanced product data in a consistent, structured format. Through Source, manufacturers can put their products in front of specifiers at the exact time they are making product decisions.