Wednesday, March 19, 2014

Sloped Ceiling

If you are trying to model a slanted ceiling you only have to know a couple of things for Revit to accurate make your ceiling. This method is straight forward but may require you to adjust a certain dimension a couple times to get it exact.
For this example, I will use a current model from our office that I am working with. Here, a hospital lobby has a butterfly roof and the ceiling is to match the slope of the roof (You can also see the Isis fans made by Big Ass Fans).
Worm’s Eye View Axo:
1.      Before you get started I would suggest drawing a section through the area you are planning on work in. After you created the section, I would tile your RCP and the new Section you can easily see them side by side.

2.      Now, using the Ceiling in your Reflected Ceiling Plan, draw the boundary of your ceiling using the Sketch Ceiling method (not Automatic Ceiling). Once your boundary is drawn, go ahead and click the big green check mark to see that your ceiling. It will default to flat, so we will visit that in the next step.
3.      This step is the most critical for this process: in your elevation, mark the highest point you want your ceiling to have, and the lowest. If it referencing something in the model, you can use those points for reference, I tend to drawn detail lines for reference. Here you can see my reference lines refer specifically to the slope of the roof:

4.      Revit is telling me that my height difference is 3’-9 ½”. Now that I know this information, I am going to click on the ceiling, and select Edit Boundary.

In the Modify|Ceilings tool that you are now in, there is an option call Slope Arrow.

Drag this arrow out from the highest plain of your ceiling and type in the dimension you got from the previous step (mine was 3’-9 ½”)

Once you’ve entered this dimension, choose the green check again to finalize your ceiling.

5.      You should now see this in your section.
With our ceiling modeled, you can change it height by modifying its constraint in the Properties Menu or by simply moving/dragging it up and down. Since we now have the same slope as our ceiling, we can put it anywhere we like. Once you’re happy with it, erase the reference lines and dimensions.

6.      Continue this process if needed to make your desired shape and use the boundary tool to create and voids you’d like to model.

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