National Gypsum Properties, LLC

Guardian Building Products, Inc.

David W Yarbrough

Gary E Romes

John Wade Mixson

Jennifer M Willson

An insulated exterior wall assembly combining insulating material and reflective surface insulation coupled with an air gap. A wall assembly according to this invention includes wall support studs defining insulation cavities between them, sheathing boards facing the building exterior, an insulating material such as cellular plastic material or fibrous insulation applied from the exterior sheathing partly through the depth of the insulation cavities, a foil-backed gypsum-containing wallboard applied to the interior facing portions of the studs, with an air gap between the foil backing of the wallboards and the surface of the foam along the depth of the studs. The wall assembly according to this invention provides comparable thermal resistance compared to a deep layer of insulating material.

Foil-backed wallboard and insulation system

A method and/or system is provided that compensates for the flow of air through fiberglass insulation. In certain example embodiments, a dynamic heat flow meter or the like is provided for measuring and/or determining any detrimental effects of air flow through insulation such as fiberglass insulation. Once the possible detrimental effects are recognized, an insulation system is adapted (e.g., by providing a foam based insulation in a wall cavity in addition to the fiberglass insulation) to compensate, or substantially compensate, for the effects of air flow through the fiberglass. For instance, a sufficient amount of foam insulation may be provided in a cavity adjacent fiberglass, where the foam blocks or substantially blocks air from flowing through the cavity, thereby compensating for the effects of air flow through fiberglass and permitting the intended R-value to be maintained or substantially maintained.

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Cookeville, TN, United States of America

David W Yarbrough