POSTED ON JUNE 10, 2016 BY MARTIN HOLLADAY, GBA ADVISOR IN MUSINGS OF AN ENERGY NERD
These days, lots of builders are installing a continuous layer of rigid foam on the exterior side of their wall sheathing. The usual approach is to sheathe the wall with OSB or plywood, and then to install one or more layers of rigid foam outboard of the sheathing.
Some builders are beginning to simplify this process by switching to nailbase panels — rigid foam panels with a layer of OSB or plywood glued to one side. Since nailbase panels provide sheathing and foam insulation in a single panel, they should (in theory) simplify the construction process.