How To Draw A Roof Line

The 45 degree angle lines represent the hips.

How to draw a roof line.

Create a structure to put the roof on. Click and drag from one corner of the wall top to the other. Use the following steps to draw a roof. This a a simple example of how to build a roof line or any other inclined plane when using two point perspective.

Now we can draw in the ridge lines as shown. This shows the correct angle for other lines parallel to the top and bottom of the building. Step 11 draw a vertical line thru the center of the x and draw the front one as high as you want the roof to be. The roof plan is sometimes overlooked on some plans but it is a very important feature to a complete set of plans.

A roof plan is a view from the top of the house that shows the geometry in flat view of a roof. Push pull back your triangular gable. If your gabled roof extends all the way to the other end of your building push pull it back that far. The 3d drawing also differs very slightly from the line drawings including a false hip connecting the front porch to the bedroom hip to its right and some false roofs over the unseen shed roof and how the garage roof connects to the main roof and lack of crickets.

Cursor changes to a transparent disc to gauge drawing height. Position disc on wall top before drawing. Odd roof types dormers. Step 13 now draw a letter v using the top of the vertical line to the top 2 corners of each square.

Draw two edges from the top of your vertical line to the corners of your roof. In this step i have drawn in some dashed lines. Now you have a roof. To finish the roof draw a line from the peak of the roof down to the top corner of the back edge of the wall.

This finishes of the roof line. To start drawing in the hipped roof draw lines at 45 degree angles from all the points on the roof as shown in blue. To draw something parallel to the roof line of the house the tops of windows for example draw a line from the front corner of the building to each of the two vanishing points. Step 12 draw a line from the front vertical line to the right vanishing point.

Erase the vertical edge you drew in step 3 and the guide you drew in step 2.