Hey everyone, I am going through one of my CAD projects and trying to start as if it is a new job using my site measured survey sketch. What is the first thing you do when you start a new project for an existing property? I am guessing it is to set up some levels?
I am guessing the way I will measure up in the future might change a bit depending on the way i learn to build the revit model - IE i don't usually measure from ground to eaves - but i think the following levels would help me...
Ground level
Ground floor level
G.Floor ceiling
First Floor level
F. Floor ceiling
Eaves level
Ridge Height
I am not sure how to get the ridge height - but for loft conversions i thought it might be a good level to have so i can get dormer roof ridges to the same height...
Learning as i go...
Eddy
Plan and ceiling views are level dependent and everything you place in a view, will reference that level. Typically levels are actual levels you can walk or build on, but there is no solid rule or law. So that would be my criterium what will be a level, and what will just be a reference plane or so.
The roof ridge is derived from the roof height and slopes. So that doesn't need a level. the roof should have a level and if you build a loft, you have a walkable floor for that.
It is a bit trial and error to find out what works for you. I work a lot with existing buildings and they often have really weird layouts and seemingly random levels. But not each of their levels needs to be a level in my model. There isn't a definite answer, and with new construction you are in control (hint, if it is really hard to model, it is really hard and expensive to build as well).
You want to keep your use of levels to a minimum. Having to adjust or delete them midstream of a project can be detrimental to your model. It's best to just use actual building stories for levels. Everything else that seems to make sense as a level should be reference planes instead, i.e. ceilings, eaves, intermediary levels, etc.
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