Posted on March 10, 2015 by Fernando Pages Ruiz in Guest Blogs
Justly or unjustly, we in the green building movement are often viewed as self-righteous. Most often we are on the forefront of the truth, introducing new building methods and specifying materials that not only protect the environment, but improve building quality. Other times we get it wrong. For example, in pursuit of energy efficiency we wrapped interior walls in plastic sheathingMaterial, usually plywood or oriented strand board (OSB), but sometimes wooden boards, installed on the exterior of wall studs, rafters, or roof trusses; siding or roofing installed on the sheathing—sometimes over strapping to create a rainscreen.
to prevent air infiltration. This unwittingly trapped moisture in the walls, promoting mold and causing "sick building syndrome." But we learned, and we fixed it.