Creating a Realistic Roof Design with Slope and Drain Locations

Designing a Sloped Roof with Drain Locations: Adding Realism to Your Project

Creating a realistic roof in architecture design involves a number of key components including understanding the difference between floor and ceiling plans, working in the correct view, and ensuring the roof has a defined slope. This article explains the step-by-step process, from drawing the roof boundary to identifying drain locations, to help you create a more realistic roof detail for your floor plans.

Key Insights

  • One crucial consideration for creating a more realistic roof is to understand the difference between ceiling and floor plans. Ceiling plans look up and show only the grids, while floor plans look down and display the walls.
  • Keeping your workspace organized is important. Using the 'close hidden windows' option can prevent confusion and the wasting of computer resources on inactive views.
  • Creating a realistic roof involves defining its slope. After drawing the roof boundary, it's necessary to deactivate 'define slope' for each line, which enables access to the tools needed for the next step in the process.

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Now we're going to move on to doing the roof, and there's a couple of cool things that we're going to do here to make the roof look pretty good and make it look a little bit more realistic than just having a basic flat roof in here. So as we go through, we want to make sure that we're using the right type of floor plan. We've been working on ceiling plans here, but now we're going to switch back to going to our floor plans.

The big difference is ceiling plans are cut and they look up, whereas floor plans are cut and they look down. And this is really easy to see when I go into, say, my roof plan here on the ceiling plans, and you'll notice that all you see are the grids because there's nothing above the roof plan for us to look at. Whereas when I go to the floor plan roof plan, we can actually see the walls that go all the way around here because those are within the cut plane, and we're visually looking down at them.

So keep in mind that we want to be working in the roof under the floor plans category here. Now that we're in the right view, this is a good time to use that close hidden windows options that we've talked about before, because when you look through, we've now opened a handful of views, and it could get confusing, especially since we have multiple level ones, multiple roofs open. So it's never a bad idea to just go ahead and hit that every now and then, so you're not wasting computer resources on inactive views here.

So with the roof, it's really, again, it's the same process that we used before when drawing the ceilings, except for we have to draw the boundary ourselves, and then we're going to go through an exercise where we actually go through and add the slope to the roof to identify our drain locations. So the first step here is going to be to activate that roof command. So from the architecture tab, we're going to go to roof, and we'll pick a roof type from here.

If I select on the type selector, we've got one that kind of works, so we'll use that, the steel truss with insulation on metal deck, and this is a single-ply roofing type, and so we'll select that one. And we're going to use the rectangle draw method here, and the best way is just to draw the rectangle from the inside face of the wall, going all the way through, like that. And this roof is going to be designed as a low slope, or sometimes identified as a flat roof, and it's not actually flat, but we will be sloping it.

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And so if I go through here and take a look at the lines that we drew, you can see that we actually have slope on all of these. We want to select all of those lines that we just drew, and uncheck define slope in the options bar, because if we have define slope on, we won't have access to the tools that we need to complete the next step in the process. Once I've got the roof created here, I'm going to go ahead and finish the sketch, and there we go.

We've created our roof.

photo of Michael Wilson

Michael Wilson

Revit Instructor

Bachelor of Architecture, Registered Architect

Mike is recognized by Autodesk as one of North America’s leading Revit Certified Instructors. He has significant experience integrating Revit, 3ds Max, and Rhino and uses Revit Architecture on medium and large-scale bio and nano-tech projects. Mike has been an integral member of the VDCI team for over 15 years, offering his hard-charging, “get it done right” approach and close attention to detail. In his spare time, Mike enjoys spending time outdoors with his wife, children, and dog.

  • Autodesk Certified Instructor (ACI GOLD – 1 of 20 Awarded Globally)
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