Исследование пассивного дома в субарктическом климате: суперизолированный фундамент и открытые стены для диффузии водяного пара

Summary The Cold Climate Housing Research Center (CCHRC) and Fairbanks builder, Thorsten Chlupp (Reina, LLC), conducted applied research on a superinsulated foundation with an integrated thermal mass and a vapor‐diffusion‐open wall design that provide new options to improve energy efficiency in a subarctic climate. The key wall design components involve placing most of the insulation exterior to the structural framing, having an air barrier at the sheathing plane, maintaining a 3/4‐inch air gap behind the exterior siding, and intentionally omitting a vapor barrier. The wall system allows the wall to dry to either the interior or exterior freely. Sensors emplaced in the wall have been monitored for thirteen months to evaluate the thermal regime, relative humidity conditions, and moisture accumulation within the walls.