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Fastening shiplap problem with extra wide corner boards

waltsyd's picture

Original house has wide trim and corner boards. The trim is lain over the top of the shiplap, which in my opinion looks terrible with messy caulk at every gap. I'm putting in an addition and want to butt the shiplap to the corner boards and trim instead of overlay the trim.

The problem is that the extra wide trim doesn't allow the shiplap to reach the king studs or corner studs. Is it okay to just nail those ends to the 1/2 inch osb, or should there be additional nailers under the osb?

details needed (post #207515, reply #1 of 2)

What is your trim and siding?

Wood, vinyl, FC, other?

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details (post #207515, reply #2 of 2)

Siding is painted cedar 9 inch exposure v lap recreated from original. Trim is 3/4 by 4 1/2. I think I'm probably going to match the rest of the house and overlay the trim on top of the v lap. I'll have to back and caulk the openings at each v lap. I don't much like the look, but the rest of the house was done that way. It's a 110 year old farmhouse that must have had upgrades over the years.