Abstract: A method of controlling moisture reaching a building façade may include providing a weather resistant building shield, the shield including first and second subchannels. The building shield may be disposed parallel to an inner façade and separated from the inner façade by an air gap. The method may include causing input air to flow through the first subchannel at an input air flow rate and causing exhaust air to flow through the second subchannel at an exhaust air flow rate. Controlling at least one of the input and exhaust air flow rates may provide control over moisture content in the gap.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

Abstract: A method of controlling moisture reaching a building façade may include providing a weather resistant building shield, the shield including first and second subchannels. The building shield may be disposed parallel to an inner façade and separated from the inner façade by an air gap. The method may include causing input air to flow through the first subchannel at an input air flow rate and causing exhaust air to flow through the second subchannel at an exhaust air flow rate. Controlling at least one of the input and exhaust air flow rates may provide control over moisture content in the gap.

Abstract: A heat and moisture transfer system may include a flexible heat and moisture exchanger in fluid communication with an environment control unit and an enclosed space. The flexible heat and moisture exchanger may include at least one flexible water vapor-permeable membrane, and may be configured to pass air streams simultaneously in different directions in adjacent subchannels formed by the membrane.

Abstract: Systems, apparatus and methods that may be used to integrate a heat and moisture exchange system with the heating, ventilation and air conditioning system of a building or other enclosed space, without requiring installation within the walls or other structural portions of the building.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.