How to Make a Sloped Flat Then a Slop Again in Revit

Mutual Types of Roofs & How to Model Them in Autodesk Revit

Designing roofs in Revit can pose certain difficulties peculiarly for users less familiar with roof modeling tools. Creating exact roof geometry and size for a new build or modeling an existing roof to given dimensions is non ever straightforward. If nosotros follow some cardinal principles, however, we can model quite a few roofs simply past using Revit's 'Roof past Footprint' tool. For more circuitous roof contour shapes, 'Roof past Extrusion' is typically used, which we volition cover in time to come articles. Other ways of creating roofs are 3D massing using the 'Roof by Face' tool, which allows you to come up up with a greater diverseness of circuitous roof designs, and In-Place Massing or Mass Families, which allows you to pattern irregular roofs and tensile roof structures.

For at present, we'll focus on some of the more mutual roof types used for modest residential, commercial, and industrial projects.

To create a simple hip roof with the 'Roof by Footprint' tool, follow the steps below.

1. Have your perimeter walls and levels ready
2. In Architecture tab select Roof – Roof by Footprint tool and choose desired roof type
3. Choose a relevant level for a bottom confront of the roof
4. Use Choice Walls tools and hover over a wall – press tab to select all joined perimeter walls
5. Define roof parameters like overhangs, slopes, offset from level, rafter cut
6. Cease the roof past exiting roof editor

1. Utilise pick walls draw tool.

2. Each boundary line can be edited individulally.

iii. Roof gradient is defined in parameters.

4. Roof slope may exist adjusted using take hold of handles.

5. Boosted features tin can be added.

For a different variation of a hip roof, follow the aforementioned steps given above and arrange a few parameters as shown beneath.

i. Roof shape may exist further manipulated.	2. Define overhangs and switch off slope parameter for gable stop roof boundary lines.
3. Wall tin exist fastened to follow roof line.	4. Select multiple walls and utilize Attach Top/Base of operations function.

In the next example we will see how dormers, mono pitches, and double-pitch gable end roof types can be modeled using the 'Roof by Footprint' office. To accomplish these more complex shapes, again, follow the steps given in the first example and adjust some settings.

1. Roof pitches tin exist manually adapted using grab handles.	two. Prepare walls and levels for entire firm.
3. Add roof by footprint by selecting external walls.	iv. For triangular dormers add ane purlieus line for each gradient of dormer.
5. Add gradient arrows for each boundary line pointing to each other.	6. Use Slope Pointer from Draw tools set.
7. Remove slopes where gable ends are desired (untick 'define slopes').	eight. Rafter Cutting type, Slope and Constraint parameters can exist inverse.

9. Select walls from lower levels and attach to roof. Y'all can also create walls at the relevant cranium level and attach them.

10. To make a double pitch dormer roof, create roof past footprint at corresponding level, untick gradient parameter for gable end boundary line, connect corners, draw a new line at the back and switch off slope parameter, and attach gable end wall to roof.

11. Use Bring together/Unjoin Roof function in Geometry tab and select both primary roof and dormer roof – then create a dormer opening for the main roof. Pick roof/wall edges and trim corners of model lines.

12. For mono pitch dormers echo the process, but remove slope definition and instead add together a gradient arrow, which can be farther divers in properties.

13. For remaining mono pitches repeat same process, and either use a slope arrow or add a slope to i of the perimeter roof boundary lines. Cutting roof openings as in previous instance.

14. To create a roof sweep, add roof by footprint and remove slope definition from inner boundary lines. Pitch can exist adjusted.

To create a hip dormer roof or a half hip roof, create roof by footprint as in previous examples and follow these steps.

1. Create roof with gradient definition for all three external boundary lines.	2. For a one-half hip gable end – split entire line into three and remove gradient definition for two side boundary lines.
3. Define slope for middle boundary line and write in Offset From Roof Base parameter.	four. The upshot is one-half hip roof with dormers.

Other types of dormers can be created following the same principles as in previous examples. Utilize create roof by footprint and add additional features as shown beneath.

1. Pick external walls to create roof – suspension down purlieus lines to define where your dormers will be.

two. Add a 10 caste slope to heart boundary line with boundary lines on each side without slope definition and with slope arrow.

iii. Keep a zero showtime from roof base of operations for the kickoff and concluding boundary lines.

4. Gradually increment commencement for next ii lines going towards the centre – 1000mm starting time.

5. Utilize 1200mm Offset From Roof Base for top of the dormer roof line.

6. Cutting dormer opening for the main roof by picking walls within the perimeter.

seven. Create roof by footprint for the height slice and attach walls to roof if needed.

8. For inverted roof add negative slope value to side boundary lines.

9. Inverted roofs can be applied to different scenarios and further modified.

To model a mansard type of roof, Revit lets you define a cutoff level where roof is cutting horizontally and additional roofing can be created from the cutoff level up. Let's look into this more than closely using the post-obit example.

1. Create a new level for roof cutoff.	two. Draw a roof past footprint and specify cutoff level.
3. Specify slopes and overhangs.	4. Join walls to roof.
5. Use rectangle tool to draw new roof by footprint at new pitch angle.	6. Specify base level at cutoff level.
7. Draw additional double pitch roof at cutoff level.	eight. Cut dormer openings for both roofs.
9. Depict walls and attach to both roofs.	10. Instead of attaching walls to roof alternatively wall profile lines can exist edited.

11. Revit Roof tool set lets you add soffits, fascia, and gutters to an existing roof by picking the roof edge line.

Irregular double pitch roofs are also quite uncomplicated to create. Keeping in mind the steps taken in the examples above, draw walls and create roof by footprint at the relevant level.

ane. Carve up gable finish boundary line in two.	two. Add together slope arrows pointing toward each other
iii. Ascertain slope arrow parameters.	4. Prepare dormer walls and depict roof.

v. Join two roofs and cut dormer opening in the main roof.

Modeling roofs by footprint may also be used for other typologies. An array of mono pitch roofs tin can be designed so that it allows clerestorey windows to exist placed at intervals.

1. Side walls can exist adjusted by manipulating profile line to desired roof line.	two. Describe a roof rectangle and add gradient arrow.
three. Split side purlieus lines and add slope arrows to meet at desired distances.	4. Roof pitches and overhangs can be further manipulated.

Another example of using the cutoff level parameter is when you're joining two roof types. In this instance nosotros have a hip roof and gable end roof hybrid. Every bit in previous instances, prepare external walls on which the roof is going to exist modeled. Make sure you take levels at the right heights.

1. Draw a roof with cutoff level at desired height.

2. Depict a double pitch roof with base level at cutoff level. Attach gable end walls to roof and create side walls.

3. Create dormer opening for the principal roof past picking boundary lines of upper roof and side walls.

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So, above nosotros've seen how various roof types can be created using the 'Roof past Footprint' tool in Revit, but fifty-fifty more intricate details tin be added to those roofs. Come up see how to fully frame a Revit roof, produce shop drawings, and consign to CNC in our FREE WEBINAR about framing roof panels, trusses, and rafters on June 3, 2020.

We also invite you to download our TOOLS4BIM Dock to accept a FREE TRIAL of either our Wood Framing Roof or Metal Framing Roof tools. And we encourage y'all to ask for a gratuitous personal sit-in of the framing software with 1 of our BIM consultants. Simply send us a note, and nosotros'll take information technology from in that location.

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Source: https://agacad.com/blog/how-to-model-common-roof-types-revit

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