Roofs |
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Roof Typologies |
| The following section demonstrates a series of typical roof conditions and the appropriate strategy to use in Revit to create these roofs. For any roof, there can many ways to solve it; use this as a guide and to shore up your skills with the roof tools. Each roof in the typology is represented with Roof Plan View, Sketch Plan and 3D view of the roof. |
Flat Roof
This flat roof was created using roof by footprint and the Pick Walls method, checking Defines Slope. |
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Gable Roof with Asymmetric Slopes
This roof is also created using roof by footprint and the Pick Walls method, but in this case Defines Slope is checked only for the shorter sides of the roof, with slope angles that are not identical. |
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Shed Roof
This roof by footprint was created using the Pick Walls method with Defines Slope checked only for the one of the short sides of the roof. |
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Note that you could also make this same roof by adding a slope-defining line to a flat roof: |
Hipped Roof
This roof by footprint was created using the Pick Walls method, and Defines Slope was checked for all sides of the roof. |
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Hip Roof Following Recessed Walls
This roof by footprint was created using the Pick Walls method. Defines Slope was checked for all sides of the roof except the three walls that recess toward the inside. |
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Gable Roof
This roof by footprint was created using the Pick Walls method with Defines Slope checked for all sides of the roof but the one that recesses toward the interior of the building. |
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Gable Roof with Extending Pergola
This roof by footprint was created over a rectangular floor plan using the Pick Walls method. Its sketch was then edited and additional sketch lines added to shape up the extension. Slope is defined only for the sides indicated in the sketch. |
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Hip and Gable Hybrid Roof
This roof by footprint was created with the Pick Walls method with Defines Slope defined for all sides. |
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| Notice that the sketch lines of the shorter sides have been split in thirds and Defines Slope is checked only for the middle portion of the line, as shown here. |
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Gambrel Roof
This roof by footprint was created using the Pick Walls method. Defines Slope was checked for the two long sides of the roof only. The roof is cut off at a certain height (cutoff level), and a second roof has been created using as a sketch the cutoff shape of the first roof. The second roof also has Defines Slope Option checked for its two longer sides. |
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Dutch Gable with Glazed Roof
This roof by footprint was created with the Pick Walls method with Defines Slope checked for all sides of the roof. The roof is cut off at a certain height (Cutoff level), and a second roof has been cre-ated using as a sketch the cutoff shape of the first roof. The Type value of the second roof is set to Sloped Glazing. The second roof also has Defines Slope checked for all sides of the roof, but the slope of the second roof is slightly steeper than the one of the first roof. Curtain grid and mullions are applied to the sloped glazing. (See “Real World Scenario: Creating a Ridge Skylight Roof" for a full step-by-step procedure for this example.) |
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Dutch Gable
This roof by footprint was created with the Pick Walls method with Defines Slope checked for all sides of the roof. The roof is cut off at a certain height (Cutoff level), and a second roof has been cre-ated using as a sketch the cutoff shape of the first roof. Defines Slope is also checked for all sides of the second roof; the slope of the second roof is slightly steeper than the slope of the first roof. |
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Hipped Roof with Sloped Arrow Dormer
This roof by footprint was created by using the Pick Walls method with Defines Slope checked for all sides of the roof. The sketch line on the south of the building is split into four segments to allow for the dormer creation. Sloped arrows facing each other and meeting in one point have been added to the middle two segments of the split sketch line |
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Hipped Roof with Two Dormers
This roof by footprint was created using Pick Walls method with Defines Slope checked for all sides of the roof. The two dormers are also separate roofs created by the footprint of the walls defining the sides of the dormer. The roofs are then joined. The opening in the roof slab is made up of two simple closed loops of lines (this can be done directly in the sketch or with the opening tool later). |
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Four-Sided Gable
This roof by footprint was created using the Line Draw method in the shape indicated in the sketch. Defines Slope is checked for all four corners (see the blowups of the corner and middle roof edge). |
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Hipped Roof with Extruded Roof Dormer
This roof by footprint was created using the Pick Walls method with Defines Slope checked for all sides of the roof. The dormer roof is created as a roof by extrusion using the wall face as a work plane and then joined with the other roof in the sketch or with the opening tool later. |
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Cone Roof
This is an in-place roof, created using the Create tool from the modeling Design bar with Roof as the category assigned to it. A simple closed line loop sketch is revolving around an axis. |
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Dome
The dome was created using the revolve modeling technique. You will first need to draw a refer-ence line in plan view that crosses the center of the circle describing the exterior walls, and then in section view, you will draw the revolving shape and also the axis of rotation. |
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Barrel Roof
This was created using the Roof by Extrusion method. A simple line in arc shape defines the main shape of the roof extruded over the building Footprint. In this particular example additional Roof by extrusion is added, converted into Sloped glazing, The Sloped Glazing Curtain Panel type is set to Empty glazing allowing for the mullion structure to create a sun shade. |
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Multipitch Roof
This roof by footprint was created using the Pick Walls method with Defines Slope checked for all sides of the roof. Regardless of how complicated the underlying footprint, Revit will correctly cal-culate the ridges as long as the eaves are aligned. |
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