OSM sub-assemblies and components
Offsite residential construction, Glossary of terms, published by Buildoffsite in 2018, states in relation to OSM (off site manufacturing) sub-assemblies and components: ‘This category is intended to encompass approaches that are not classified as systemic OSM, but use several factory fabricated innovative sub-assemblies or components in an otherwise traditionally-built structural fabric. Typically, schemes incorporating the use of small volumetric units such as pre-assembled bathrooms (often known as pods, see Hybrid), floor or roof cassettes, spandrel panels, pre-cast concrete foundation assemblies, pre-formed wiring looms, mechanical engineering composites, pre-assembled facades etc would fall into this category. Cavity masonry constructed schemes using manufactured units, such as windows, doorsets, roof trusses etc that might otherwise be part of the fabrication process in the other OSM categories – should not be included as sub-assemblies or components in this category.’
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