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Structural Waterproofing in BIM
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Posted 26.04.2019 by Simon Tomblin
Good Morning Everyone, has anyone used BIM for structural waterproofing systems or is it just not effective due to the thinness of the membranes used?
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Adam Ward on 01 May 2019
When i was a technologist (a few years ago) i used to do all my waterproofiling in 2D detailing, and have various paremetric 2D detais in revit (Lapping details etc). Generally would add a membrane layer in the Floor/Wall/Roof, but when it gets to junctions, details etc, these were always done as parametric 2D Revit details - which still contain data, and parametric rules etc (to adjust thickness and overlap depth etc).
Simon Tomblin on 01 May 2019
I've probably miss worded what i am trying to achieve here, i currently draw in 2D & would like to know whether 3D can yield good results while retaining good time efficiency?
Shane Knight on 30 April 2019
What level of BIM are you trying to achieve? Can this be covered in 2D drawings & specification? BIM is not just 3D, it can be 2D. I think sometimes people think BIM and then think 3D straight way.
Timothy Crone on 26 April 2019
I see, from a construction programme point of view, you would need a lot of time to draw everything and you'd be relying on all the service penetrations being fully coordinated with the structure etc before you could develop a full design. One should probably ask, how did you manage before and whats the requirement for this? Is it actually necessary to model it in all its complexities or can it be covered in specification? Remember, BIM isn't a 3D model. Not sure this answered your question.
Simon Tomblin on 26 April 2019
Sorry i was unclear, yes modelling in 3D. The system used is actually a build up of membranes, buytl tape & preformed corners, i am currently working in 2D as its far easier but wondered if anyone had success modelling in 3D. Unfortunately myself & the technical team are waterproofing specialists so we would be designing everything in house.
Timothy Crone on 26 April 2019
Do you mean actually modelling the membrane in 3D? In a Revit world, I would have thought having it as a layer in the floor/slab or substructure wall makeup would be sufficient, it allows quantities to be taken if required as well as you being able to show allr areas that require waterproofing. Is the design of the waterproofing membrane not better designed by a waterproofing specialist? We would tend to highlight it in 2D views advising to specialist design.