A.Clayton DeKorne responds: With wood clapboards, first cut a semicircular "sun" from a piece of clear 5/4 stock. For best results, back-prime this piece of trim, and prepaint the top curved edge.
For the rays of the sun, lay out the appropriate taper with a chalk line, and rip each clapboard along the thickened, butt edge. Install this ripped edge along radius lines of the sunburst.
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