HVAC/HVP
Common sense on BIM software Rinnai’s Chris Goggin looks at some misconceptions about BIM that could lead to confusion when it comes to product specification. Government Procurement officially starts implementation of Building Information Modelling (BIM) in public sector build from 2016 requiring collaborative 3D BIM with all project and asset information, documentation and data to be electronic. Fully collaborative 3D BIM has been defined as ‘Level 2 BIM’ and is documented in PAS119:2. BIM should be a catalyst for collaboration in construction. However, there is widespread confusion about what is actually involved. One opinion has been voiced that it is the ‘Modelling’ part of the title that is obfuscating the issue and it should have been called simply ‘Building Information’. Because that essentially is what it is – drawing all the information together for the benefit of all concerned
in the designing, building, supplying and the eventual end use. What is perturbing at this stage of readiness is that some manufacturers have jumped the gun and are offering ‘BIM-ready drawings’ for their product. This is a complete red herring – there can be no BIM-ready drawings as there isn’t even an agreed template yet to drop manufacturers’ product into. We have already seen instances whereby manufacturers who have produced overcomplex objects derived from existing 3D CAD has resulted in computing difficulties and ultimate rejection by designers. In conclusion, until such time as an industry wide template is agreed beware – no manufacturer can produce a genuine BIM-ready drawing.
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