Last week Yogan and I spent an hour exploring the Fort Ross State Historic Park, a masterful re-creation of the Russian Fort built on the Northern California coast in 1812. The Russians brought down Native Alaskan hunters who speared sea otters from seal skin kayaks. Most of the hunters came from the Kodiak Islands and their kayaks, spears, and hunting techniques were extraordinary (more on this later).
If you are ever driving up the Northern California coast, I highly recommend going to this site.
Here is the chapel (star of the show), metal shop, and wood shop. Roofing on these buildings consisted of 2 layers of long planks, laid with the cracks in the top layer over the centers of the under layer.