Autodesk Revit Architecture 2011 No Experience Required - part 34 ppsx

Pick the six walls that comprise the corridor, as shown in Figure 7.23.. Click the Boundary Line button on the Draw panel, as shown in Figure 7.24.. On the Modify | Create Roof Footprin

N O T E although you have pretty good experience with walls up to this point, Chapter 16, “Advanced Wall Topics,” is dedicated to the advanced concepts and creation of wall systems

It’s now time to add the roof to the corridor Because the walls our roof will bear on are now correct, the rest will be a snap!

1 Go to the Level 3 floor plan (This is the roof level for our corridor.)

2 On the Home tab, select Roof ➢ Roof By Footprint

3 On the Draw panel, make sure the Pick Walls button is selected.

4 On the Options bar, make sure the Defines Slope button is checked,

as shown in Figure 7.23

5 Type 1′–0″ in the Overhang field

6 Pick the six walls that comprise the corridor, as shown in Figure 7.23.

F i g u R e 7 2 3 Pick these walls for the roof’s footprint.



remember, your

preview will need

to be in Section :

Modify Type for all

of the buttons to be

active.

With the easy walls out of the way, it is now time to create the gable ends You

should still be in the Pick Walls mode This is OK, but there are a few things you

need to change on the Options bar:

1 Click the Boundary Line button on the Draw panel, as shown in

Figure 7.24

2 On the Draw panel again, click the Pick Lines icon.

3 On the Options bar, uncheck Defines Slope.

4 For the offset, enter 0 (see Figure 7.24)

5 Pick the east wall on the west wing, and the west wall of the east

wing, as shown in Figure 7.24

F i g u R e 7 2 4 You must pick lines to trace the terminating walls of the roof.

It’s cleanup time! Of course the magenta lines are overlapping at the long

walls This is OK—you are an expert at the Trim command by now, especially in

Sketch Mode:

1 On the Modify | Create Roof Footprint tab, select the Trim/Extend

Single Element command, as shown in Figure 7.25

O

as you pick the walls, notice that you now have an overhang this overhang obviously needs to extend to the outside of the walls Just be con-scious of this as you pick the walls and watch your align-ment lines as you proceed.

2 Trim the intersections that overlap There will be four of them (see

Figure 7.25)

3 On the Mode panel, click Finish Edit Mode.

F i g u R e 7 2 5 Using the Trim command in conjunction with the roof sketch.

One ugly roof, huh? Welcome to the world of pitched roofs in Revit We will get the roof we want—we just need to add two roofs here You will understand this process, but it is going to involve patience and trial and error!

To fix this roof, you simply have to make two separate roofs and join them together This will be a common procedure for the more complicated roof sys-tems in Revit

1 Select the roof.

2 On the Modify | Roofs tab, click the Edit Footprint button, as shown

in Figure 7.26

3 Delete every line, other than the three shown in Figure 7.27.

4 On the Draw panel, click the Line button.

5 Draw a diagonal line from the endpoints of the two lines, as shown in

Figure 7.28

F i g u R e 7 2 6 Selecting the roof and clicking the Edit Footprint button

F i g u R e 7 2 7 Keep these three lines.

F i g u R e 7 2 8 Draw a diagonal line as shown.

6 On the Modify | Roofs ➢ Edit Footprint tab, click Finish Edit Mode.

7 The roof will display It still looks funny, but we will take care of that

by altering the view range

8 Start the Roof ➢ Roof By Footprint command again on the Home tab

9 On your own, sketch the roof shown in Figure 7.29 Make sure the

lines along the walls are defining a slope The lines that represent the ends of the roof do not slope

10 To add the line that matches the roof to the right, make sure you

have the Boundary Line button selected on the Draw panel and that you have Pick Lines selected as well Now, simply pick the roof to the right, and the line will appear

11 Review Figure 7.29 to see if your sketch matches You should have six

lines total, and the right and the left ends should not have a slope

F i g u R e 7 2 9 The new outline of the second roof

12 On the Modify | Create Roof Footprint tab, click Finish Edit Mode.

13 Go to a 3D view Does your roof look like Figure 7.30?



If you accidentally

added a line with

(or without) a slope,

that’s fine You can

change it First,

press esc (to clear

the command), and

then select the line

that needs to be

changed On the

Options bar, you can

check (or uncheck)

Defines Slope.

F i g u R e 7 3 0 The corridor roof in 3D

The walls need some help! They are indiscriminately poking up through the

roof You need to do some wall cleanup First you need to force the walls to use a

mitered join at the 45° intersections The following procedure will show you how:

1 Go to the Level 1 floor plan.

2 Zoom into the wall intersection, as shown in Figure 7.31.

3 On the Modify tab, click the Wall Joins button, as shown in Figure 7.31.

4 Move your cursor over the intersection You will see a box form around

the corner When you see this box, pick the wall

5 On the Options bar, click the Miter radio button, as shown near the

top left in Figure 7.31 Notice the walls are now joined at a miter

6 Perform this procedure at all four corners.

F i g u R e 7 3 1 Modifying the wall’s corners

You can now attach the tops of the walls to the bottom of the roof:

1 Go back to a 3D view and select one of the corridor walls.

2 On the Modify | Walls tab, notice there is an option to attach the top or

base of the wall, as shown in Figure 7.32 Click the Attach Top/Base button

3 Pick the roof that the wall is under You will see that the wall no

lon-ger sticks up past the roof

4 Perform steps 1 through 3 for each corridor wall When you are

fin-ished, your corridor should be spanking nice, like Figure 7.33

F i g u R e 7 3 2 Attaching the top or the base

When you have

suc-cessfully mitered a

corner and are ready

to move to the next,

there is nothing

indi-cating that you can

safely pick another

corner You do not

need it When you

see that the walls

are at a miter, you

can pick the next

intersection When

you have finished all

four, just press esc.





You don’t always

have to modify the

wall’s mitering this

is a special situation

where the corners

will not attach to the

roofs properly unless

you do so there’s

really no explanation

for why and when

this will occur Just

know you have some

tools under your belt

to get out of these

“real life” situations.

F i g u R e 7 3 3 The completed corridor roof

bu t i got th i s Wa r n i n g!

Sometimes Revit does not like you hacking up its perfectly fine walls The

warning shown in the following image is common and has no effect on the

model You can just ignore it

viewing a sloped Roof in Plan

Back in Level 3 (the level in which the corridor roof resides), we are having a

view problem: the roof is only showing up to the cut plane for that level This

just cannot be There is a procedure to correct this called a plan region:

1 Press Esc if the last command is still running and go to the Level 3

floor plan

2 On the View tab, click the Plan Region button, as shown in Figure 7.34.

3 On the Draw panel, select the Rectangle button, as shown in Figure 7.35.

4 Draw a rectangle around the corridor, as shown in Figure 7.35 Be sure

to snap to the exact points where the corridor walls meet the taller walls

on the east and west wings

5 In the Properties dialog, click the Edit button in the View Range row,

as shown in Figure 7.36

F i g u R e 7 3 4 Using a plan region allows you to alter the view range in a

specified area of a plan.

F i g u R e 7 3 5 Creating the rectangle that forms the perimeter of the

plan region

F i g u R e 7 3 6 Setting the view range for the plan region

6 In the View Range dialog, set Top to Unlimited and Level 3 Cut Plane

Offset to 35′–0″, as shown in Figure 7.36

7 Click OK.

8 On the Modify | Create Plan Region Boundary tab, click Finish Edit Mode.

You can now see the roof in its entirety, as shown in Figure 7.37

F i g u R e 7 3 7 The finished roof plan

There is one more kind of roof to add It will be a flat roof that has a slope in

one single direction Although you can do this by simply creating a roof with one

edge specified as a pitch, there will be times where you will want a roof sloped at

an odd direction that can’t be handled by simply angling a roof edge