Kneewalls are commonly found in attics, especially in attics that have been converted to living space, but they can be difficult to insulate properly. In this "Energy-Smart Details" article, senior editor Martin Holladay describes two ways to insulate attic kneewalls. In his "good" method, the kneewall is air-sealed and insulated. In his "better" method, the sloped ceiling is insulated. This article includes a sidebar on how to manage "the devil's triangle," the tight, difficult-to-navigate e...
