Thanks Peter and Arthur, very helpful and much appreciated. Yes this house is on the NC coast. I'll definitely try the OSI Quad caulk before going the replacement route. Should I just use the caulk on the center of the board with the soft area - I guess due to an imperfection in the board and not to dry rot - or should I use some type of filler first as reinforcement. Btw, that's the only board damaged, the others seem fine.
Richard aka Lester
The soft section of the board below:
Cedar can have pithy spots, it's a tree after all! Dig around with a screwdriver or chisel (crude I know, but this a kludge) and remove any really loose stuff. Hopefully that's not a whole lot of material.
You'll want gloves for the Quad...gloves you intend to dedicate to the task, but tougher that latex/nitrile surgical glove. If there's someplace you don't want caulk, that's where it seems to gravitate toward. Gun it onto void, shmear it with your gloved finger until you've got it kinda sorta filled. Then take a rag you don't care about and swipe at it with the grain. It should look like a kid did it. Walk away. Through the rag away. Don't putz around too long trying to get it perfect, it'll just get worse. That's your grain simulation...trust me. Give it a few days to cure and then paint. The rough nature of the claps make this blend in pretty well.
It's not a permanent repair but will get you through a couple years, maybe more.