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
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
Start by installing the clapboards along the bottom on both
sides, and work your way towards the center. Butt the end of
each ripped clapboard into the edge of the sun, and seal the
joint with caulk.
Where the clapboards meet in the center, install a vertical
batten along the top edges of the fanned clapboards, which
should now be close to vertical. I find it works best to rip
this batten from clear 1-by stock, so both edges run parallel
to the clapboards along radius lines of the sunburst.
With vinyl, follow the steps illustrated below. In this
case, cut the sun and the last center ray from a piece of flat
coil stock, and install them last over the ends of the vinyl
Clayton DeKorne is the senior
editor of the Journal of Light Construction.