Espee, when I modelled the sunbursts, I figured they were lapped like shingles. So, I divided the straight line into equal segments and drew lines from the center point to create the radiating lines.
Next, I drew a line down about an inch, and then drew a "sloping" line that forms the lapped edge of the shingle. Except in SketchUp, this is a 'warped' plane, so you need to draw a diagonal to create a surface (SketchUp is VERY picky about this).
If you look closely at the left sunburst on the large dormer, you can see where some "stitching" occurred.
Keith Hayes
Leadville in Sn3