Join Paul F. Aubin for an in-depth discussion in this video Sloped glazing, part of Revit: Tips, Tricks, and Troubleshooting.
- [Instructor] In this video, I want to talk a little bit about sloped glazing. Sloped glazing is a system family that you can apply to roofs and makes the roof behave a lot like a curtain wall. So if you've ever worked with a curtain wall before, then the same basic procedure will apply with a sloped glazing, except that you'll be applying it to roof surfaces instead of walls. So, I've got this little barrel vault roof here that I've created for this outdoor canopy, and I created that just using Roof by Extrusion. So what I'm going to do in this example is I'm going to change that back to a generic roof just for the time being, just to show you what we were starting with.
So we just have this little curve structure, and let's build it all over again, so I want to create that sloped glazing from scratch here. So I'm going to select that generic roof and scroll down, and choose the original sloped glazing style, and when I do that you can see why I'm starting with that, because the original sloped glazing style has no settings. So what you get is even though there's this curve, you end up with this flat plane. And the reason you get a flat plane is because its only got a 1 by 1 bay structure and if its only 1 bay by 1 bay, then the best it can do to approximate the curve is to give you this flat slab.
So another way to think about that is if I go to Architecture, click the Curtain Grid tool, and start adding curtain grids along the length of this curtain wall, you'll start to see it come closer to approximating the curved shape, right? So that's one way that you could start to create this more custom roof assembly, is by manually placing each of the grids and then coming back and manually placing mullions along those gridlines to start expressing that geometry.
What I'm going to do is undo all of that back to right here, okay, where I had just had the simple flat plane. I'm going to select that plane, go to Edit Type, and I want to do all of this at the type level instead because I want some regular settings. So if you want the same spacing across the entire surface of the sloped glazing or the curtain wall, then using type settings can be a little bit more efficient way to do that. So let me duplicate this type.
I believe I already used this name so I'll just add 2 at the end, Glass Roof 2, and then let's start configuring some of these settings. Now the default curtain panel is glass but I'm going to go ahead and choose it anyway for the curtain panel just to make sure that I get the glass panels there. Then I want to start with my grid layouts. Now it's called Grid 1 and Grid 2, so you really just kind of have to take a guess here to see what you're going to get. I want a Fixed Distance in both directions and parallel to the beams I want a four-foot bay and perpendicular to the beams I want a two-foot bay, so I'm just going to take a guess here that Grid 1 is the four-foot and Grid 2 is the two-foot.
Let's click OK, and I, you know, I got lucky this time. That was the correct distance. Now if it turns out that it was reversed, you'd just go back into Edit Type and change the numbers, and reverse it back. So I'm going to do Edit Type again. We don't need to duplicate because we've already got the type we want so we'll just keep working on it. So next I want to consider the mullions. Now, I'm going to work only with out-of-the-box mullions that I have here on the list, but if you want to, you can actually go to the Project Browser, expand Curtain Walls and then Mullions and duplicate any existing mullion and create your own custom ones.
Those custom mullions can even use custom profiles and have their own shapes. So I'm not going to do any of that here. I'm just going to keep it simple and work with the out-of-the-box ones and I'll leave that for you to explore. So on Grid 1, this is my long bay, I'm going to use the larger size, 2.5 by 5 inch rectangular, and on Grid 2 I'm going to use this smaller size, 1.5 by 2.5 rectangular, and let's click Apply here and see what that did. So you can see I've got the larger thicker mullion running along the length and the smaller mullions running in the smaller bays in between.
Now I also have four borders around the four sides of the sloped glazing and you've got a border type 1 and 2 in each direction, so you could actually make all four of those separately, assign each of those separately if you wanted to. What I'll do is for Grid 2, which again is my two-foot bay, I'm going to use that larger size again, the 2.5 by 5, and the 2.5 by 5, on both sides. So when you apply that, that'll add a border here and a border here that uses that larger mullion size.
Now, over here, I just kind of got lucky. There are some built-in corner mullion styles that are available as part of the template, they're built-in system families. We've got a Quad Corner, we've got a V-Corner, we've got a Trapezoid, and I chose the Trapezoid for both ends here and it actually looked pretty good. What it ended up doing was making it kind of kick up at the corner there and it almost looks like a little gutter condition, so I actually like that effect so I just went with the Trapezoid as is. I didn't make any change to it.
So sometimes you get lucky and you're able to do that. In other cases, you might have to build some custom mullion for those conditions instead. So let me click OK here and see what that did. And so far so good, it's looking pretty good, but there's a few finishing touches that I want to talk about. Now, I got lucky with the default join conditions, and what I mean by that is I wanted this mullion, the bigger one, to be continuous all the way through, and I wanted the smaller ones to be interrupted at each large mullion.
It's doing that on its own automatically because it's making Grid 1 predominant by default. However, if we went to the settings, you could actually tell it to make Grid 2 continuous and it would do the opposite, and now it would interrupt all of those mullions, and if that's the effect you wanted you could do that. You can also click on an individual mullion and you get these small little toggle, and you can toggle them one by one, so that's another option that you can do. Now I'm going to undo both of those because the default is giving me what I wanted, so there's really no reason for me to change that, but the thing that I do want to change is the way that the pattern is being applied.
Now I started with my original sloped glazing and I just changed the type if you recall at the start of this video. That means that when we look over here on the Properties palette, it already has the justification set the way that I needed, but if you build one of these from scratch it will actually default to Beginning and Beginning here, and you'll end up with something that looks like this. And notice that that shifts the entire grid pattern. So you do want to check your justification when you're building one of these, and I use Center because I wanted it to be centered in that direction, and I actually could center it in the other direction as well if you want to, and that shifts all the two-foot bays, but now I end up with these little thin bays at the ends, so you can also apply an Offset, and I'm going to put in 1 foot, which is half of the bay size, and that shifts everything half a bay, and I think that looks the best.
So you can definitely fine-tune the placement of all of the various gridlines using the settings right here on the Properties palette. All of the rest of the settings are going to occur in Edit Type. And as you can see, using a sloped glazing type, you can actually create a fairly robust design that you're applying directly to a roof element, and the alternative to build something like this would require your placing each of these components as separate beams and separate components and it would take a lot more effort, so this is actually a really quick and easy way for you to create a fairly complex design without really very much effort at all.
NOTE: The exercise files for this course can only be opened in the most recent version of Revit (Revit 2017).
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