24 C.F.R. § 3280.502
Definitions
(a) The following definitions are applicable to subpart F only:
(1) Pressure envelope means that primary air barrier surrounding the living space which serves to limit air leakage. In construction using ventilated cavities, the pressure envelope is the interior skin.
(2) Thermal envelope area means the sum of the surface areas of outside walls, ceiling and floor, including all openings. The wall area is measured by multiplying outside wall lengths by the inside wall height from floor to ceiling. The floor and ceiling areas are considered as horizontal surfaces using exterior width and length.
Notes of Decisions
Cited in 1
case, 2000–2000 · leading case: Wallace v. Meadow Acres Manufactured Hous., Inc., 730 N.E.2d 809 (Ind. Ct. App. 2000).
Wallace v. Meadow Acres Manufactured Hous., Inc., 730 N.E.2d 809 (Ind. Ct. App. 2000). “Godish and Rauch, “An Assessment of the Berge Equation Applied to Formaldehyde Measurements under Controlled Conditions of Temperature and Humidity in a Mobile Home,” 35 Journal of the Air Pollution Control Association 1186 (1985); 24 C.F.R. 3280.502; 49 Fed.Reg. 32001 (1984).”
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