Join Paul J. Smith for an in-depth discussion in this video Adding the roof, part of SketchUp for Architecture: Fundamentals.
So we're in 05-13 and it's time to put the roof onto our building. So there's a couple of things we need to do. First up, on the Layers window. If you don't have access to the Layers window, it's Window > Layers. We need to create a new layer and we'll call it Roof. Make sure it's a color that you are happy with. That yellow color's fine. And make it active by clicking on the radio button there. Now the other thing we need to do is just go back to Layers, is turn on our Elevations, so we can see the sort of situation that our roof takes.
Now it's hipped in this direction. It's also hipped in this direction. At the front elevation, we have a gable end, which just runs into the hip at this point. So you can see that line, that's the front gable end running into the hip. And if we do it correctly, then this side along here will be nice and smooth. There will be a line that's formed, which you can delete and this was, this will take on the entire side of the roof. And to do that, we need to make sure that this slope for the gable end is perfectly lined up with the slope of the back edge.
So if you go into our Camera and choose Parallel Projection and go into our front elevation. We need to make sure that this gable end, this front bit is lined up exactly with the one on the back, this one here. If it's not, then we're going to have a problem later on. And what we're going to do is use this under side point for our gable end. And we're going to use this under side point for our main hip, so this line is going to run all the way through.
So we're not going to use this top edge, we're going to use the under side point. So back to Perspective view, Camera > Perspective. And let's first form the perimeter outline of this roof. So, make sure we've got our Roof layer selected. Rectangle tool, where you can come down and create a couple of rectangles. That's going to define the overall outline of our roof. And I'm going to triple click and right-click and make a group just to make life easier for myself.
I'm then going to move this up to this point here on the blue axis. So to get to the outside edge of our fascia, I'm going to use the Offset tool. Now if I double-click this to edit it. In fact, if I delete this line, so it doesn't cause any problems. I can put it back in later and use the Offset tool.
So I'm just hovering over the surface. And then I'm clicking and dragging and I'm just making sure I've got snapping to this point. Sometimes a bit tricky, just make sure you get that point snapped and then I can let go. Now I can put this line back in again in a second. What I don't want is this surface. So I'm going to select it and delete it. I also don't want this surface. So I'll select and delete that. And I can then triple click this and delete that.
So I'm left with the outside edge. This is the only thing I really want. But for making sure it's as accurate as possible, then the Offset tool is pretty useful. Now I can put that line back in and create the surface that's going to generate the hip for this main section of the roof. So the easiest way to do that is to just draw across, across this. From corner to corner. And this is the ridge point of my roof. So if I use the Move tool, I make sure nothing is selected.
Just click on this intersection point. And then move it up on the blue axis. Now if you can't get the blue access to lock out, it's, you know, obviously you can see that it's causing problems in this orientation. Use the up arrow on your keyboard. That's going to force it up to the blue axis. I'm going to go in and snap to this point here. And that's given me my hip in two planes. Now for the gable end, I just need to draw a line from the midpoint here on the blue axis, just make sure I've locked down the blue axis this time, and come up to this point here, the under side.
And then down to this point and across to this point. E for Erase, I don't want this bit. And then P for Push Pull. Let's Push Pull that to this line. And then M for Move, and let's bring this bit, pick that intersection point and drag that in so it hits this roof. And that should line up perfectly with this, which means you can erase that bit and the roof is done. All we'll have to do in a second is run the fascia around it, but that's a very easy task.
I just want to tidy up inside. So, I'll select the roof, move it up a distance, I'll call it 3 meters, so I can have a good look underneath it. The only line I want to, to delete is this one here. So, select and delete that line and then hit Esc. Then select and move back down 3 meters. So you know it's in the right spot. So there's our roof. We've got a little bit of work to do on the gable end, we'll also put the fascia in.
But it's essential when you're creating roofs to make sure that any references are perfectly lined up, especially if you've got a situation like this where you're running a gable into a hip. It's absolutely essential that you get the heights right. Otherwise, this is going to cause you all sorts of problems.
- Installing SketchUp plugins
- Moving the model around
- Creating sweeps and revolves
- Importing a CAD site plan
- Defining the site boundary
- Building a massing model
- Adding walls, doors, and windows
- Adding the roof
- Creating stairs with a handrail
- Adding texture to your SketchUp models