In last month's part three of this ongoing series, we put sheathing in its historical context, discussed the four basic types of sheathing products and selection criteria for choosing sheathing materials. In the first two parts, we discussed broadly the environmental impacts of wood-based sheathing products (plywood and oriented strand board) and the general use and purpose of sheathing.
This month, we'll take an in-depth look at one of the most widely used sheathing product types: Gypsum-based.