Once the floor joists are set, another team of Eskimo carpenters applies 1/4 inch exterior type plyboard. This sheathing will act as the support base for insulation… [Crew building the first house.], PCA0005-28, Box: PCA 5. Steve and Dolores McCutcheon photograph collection, 1968, PCA 5. Alaska State Library - Historical Collections Finding Aids. https://alaska.libraryhost.com/repositories/2/archival_objects/42020 Accessed November 06, 2024.