Adding reference planes for an extruded roof

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Roofs can be constructed in many forms depending on the requirement.

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The explanation which follows relates to roofs

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being placed upon a rectangular building.

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As the examples show

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a hip roof is a type where all four sides slope downwards towards the walls.

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A gable roof only has two sides which slope downwards towards the walls.

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Whereas the other two do not

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a mansard roof similar to a hip roof.

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It comprises of two hit roofs, one above the other

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where the lower of the two has a slope steeper than the other. One

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in all three examples within rev

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the tool used to create them is roof by footprint.

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A footprint is the outline of the building,

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the walls create on which the roof will sit upon

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where a roof does not fit into any of the examples using the footprint of a building.

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It typically requires rev's

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roof by extrusion tool,

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especially if the roof contains a curve,

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we'll begin by opening an existing project from the recent files page.

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The roof we're going to construct will be across this corridor,

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linking

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the main building

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to the garage

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from the project browser, double click on level one floor plan.

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We'll now zoom into the corridor area

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in readiness to start the construction.

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First, we will construct a reference plane across the corridor

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here.

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This is going to enable us to position a workplace

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from the architecture tab work playing panel.

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We'll click on reference playing

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and draw a reference plane across

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the width of the corridor

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and we can see it's perpendicular to the walls by the little tool tip

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because

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it can contain many reference planes.

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It's advisable to name them

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so that you or anybody else working on the

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project will be able to identify them later on.

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So we'll click on where it says click to name

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and we'll provide it with the name corridor.

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Click in an empty space.

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Now click modify to stop

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as we will be associating a work plan to this reference

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plane followed by creating a two D sketch upon it.

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We require a view which is parallel to it.

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We will construct a section line parallel to the reference plane

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which will provide us with the view that we require.

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So from the view tab,

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we'll click on there,

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create panel,

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we'll click on section

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and we'll draw a section line which is parallel to our reference play.

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And again, we've got tool tips there to help us with that

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choose, modify to cancel the command,

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we will now begin the process of constructing a roof by extrusion.

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So from the architecture tab build panel,

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we'll click on the roof fly out

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and from within there, choose roof by extrusion

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immediately the work plane dialer box appears

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and within the specify a new workplace area, we're going to use the default method,

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pick a plane.

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So we'll click, ok.

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And then click on our reference plan we drew earlier.

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And within the go to view data box, we'll select the section

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section one view we created earlier also

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and then click open view

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in here. We need to associate

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the roof profile with a level.

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This will determine the elevation of the roof

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and if the level is moved, the roof will move with it.

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So within the level drop down, we will choose level two

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and then click. OK.

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We are now within sketch mode

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to help us.

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When we sketch the roof, we're going to construct some construction lines.

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Reference planes are typically used for this too.

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As by default, they do not print

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up on the contextual ribbon within the work plane panel, select reference plane.

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And we'll draw one reference plane to the right at one ft six distance

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and another at one ft six distance from the wall

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on the left hand side.

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Now we'll create one in between the two walls,

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then using an E Q constraint position exactly between the center of the walls.

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So we'll draw one here

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and then up on the ribbon within the annotate tab,

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we'll select a line dimension tool

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within the dimension panel.

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And first of all select the center of the left hand wall,

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followed by the reference plane we just drew,

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followed by the center of the right hand wall,

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drop the dimension just above the two walls and click on E Q

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to bring that reference plane into the exact center.

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Or now click modify to exit the modify tool.

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And within the workplace panel

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on our contextual ribbon,

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we'll draw one more reference plane

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which will be horizontal this time

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and at no particular height,

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choose modifier

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to exit that tool.

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Now,

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remember as I said earlier that we can end up

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with lots and lots of reference plans within a project.

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So it's advisable to name them. We're not gonna name these ones,

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but it would be advisable to name them in the future.