Abstract: Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Abstract: Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Abstract: Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Abstract: Roof cleaning processes and associated systems are disclosed. A representative process includes dispensing a cleaning fluid on the roof, at least restricting the cleaning fluid from exiting the roof via a roof drain, and collecting the cleaning fluid from the roof and directing the cleaning fluid to a sanitary sewer. A representative system includes a pump coupleable to a source of water and configured to pressurize the water, a surface cleaner coupled to the pump with a water line to receive pressurized water, a vacuum source coupled to the surface cleaner with a vacuum line to remove wastewater produced by the surface cleaner, and a retainer configured to be removably attached to a building at least proximate to a roof of the building, the retainer being removably coupleable to the vacuum line and the water line to at least restrict movement of the vacuum line and the water line.

Abstract: Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Abstract: A portable power and water supply for hard surface or carpet cleaners is disclosed. The portable power and water supply can include a portable platform with a fresh/waste water tank and two or more power connectors that can be coupled to separate power sources. The fresh/waste water tank can have an internal bladder that separates fresh cleaning water from returned waste water. The fresh/waste water tank can facilitate operation of cleaning tools (e.g., hard surface cleaners and/or carpet cleaners) in buildings with limited or widely spaced water supplies, without the need for long hoses. The power connectors can be coupled to wall power to direct power to the cleaning tools.

Abstract: Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Abstract: Surface dryers having uniform exit velocity profiles, and associated systems and methods are disclosed. Surface dryers in accordance with certain embodiments include a housing, a gas driver positioned in the housing, an inlet aperture formed in the housing and positioned upstream of the gas driver, and a nozzle carried by the housing and positioned downstream of the gas driver. The nozzle can have an indentation forming a convergent portion positioned to accelerate the flow of air and a divergent portion positioned to decelerate the flow of air.

Abstract: Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Abstract: Roof cleaning processes and associated systems are disclosed. A representative process includes dispensing a cleaning fluid on the roof, at least restricting the cleaning fluid from exiting the roof via a roof drain, and collecting the cleaning fluid from the roof and directing the cleaning fluid to a sanitary sewer. A representative system includes a pump coupleable to a source of water and configured to pressurize the water, a surface cleaner coupled to the pump with a water line to receive pressurized water, a vacuum source coupled to the surface cleaner with a vacuum line to remove wastewater produced by the surface cleaner, and a retainer configured to be removably attached to a building at least proximate to a roof of the building, the retainer being removably coupleable to the vacuum line and the water line to at least restrict movement of the vacuum line and the water line.

Abstract: A fluid extracting device with a shaped head and associated systems and methods of use and manufacture. In one embodiment, the device includes an extractor head that includes an extractor port housing having a cavity configured to be coupled to a vacuum source. The extractor port housing includes a recessed surface and individual openings extending through the recessed surface and in fluid communication with an interior suction cavity. The extractor port housing can further include first and second lips each adjacent to opposite sides of the recessed surface and each configured to provide a squeegee function. In another embodiment, the device includes a tubular member and a handle operably coupled to the tubular member and including a suction control device. The suction control device is configured such that a user can simultaneously operate the device to control the suction and operate the extractor to remove fluid from a flooring surface.

Abstract: Surface dryers having uniform exit velocity profiles, and associated systems and methods are disclosed. Surface dryers in accordance with certain embodiments include a housing, a gas driver positioned in the housing, an inlet aperture formed in the housing and positioned upstream of the gas driver, and a nozzle carried by the housing and positioned downstream of the gas driver. The nozzle can have an indentation forming a convergent portion positioned to accelerate the flow of air and a divergent portion positioned to decelerate the flow of air.

Abstract: Dehumidifiers with improved airflow and fluid management features are disclosed herein. A dehumidifier configured in accordance with a particular embodiment includes a housing, a moisture removal component, and an airflow director. The housing at least partially defines an airflow path extending therethrough. The moisture removal component is positioned within the housing along a portion of the airflow path, and the airflow path enters the moisture removal component in a first direction. The airflow director adjacent to the moisture removal component extends in a plane that is generally parallel to the first direction.

Abstract: A hard surface cleaner having a cleaning head with rotational assist. In one embodiment, the cleaning head includes a housing having a fluid-supply and vacuum inlets. The housing also includes at least one flow-control inlet arranged with the vacuum inlet to draw a flow of air into the housing through the flow-control inlet. The cleaning head further includes a spray assembly at least partially enclosed within the housing. The spray assembly includes a shaft, at least one spray nozzle operably coupled to the shaft, and a plurality of fins also operably coupled to the shaft. The spray nozzle is configured to receive a pressurized fluid from the fluid-supply inlet and to rotate about the shaft by delivering the pressurized fluid toward a floor surface. The fins are positioned at least partially within the flow of air through the flow control inlet to control the rotational speed of the spray assembly.

Abstract: Surface dryers having uniform exit velocity profiles, and associated systems and methods are disclosed. Surface dryers in accordance with certain embodiments include a housing, a gas driver positioned in the housing, an inlet aperture formed in the housing and positioned upstream of the gas driver, and a nozzle carried by the housing and positioned downstream of the gas driver. The nozzle can have an indentation forming a convergent portion positioned to accelerate the flow of air and a divergent portion positioned to decelerate the flow of air.

Abstract: Dehumidifiers having improved heat exchange blocks and associated methods of use and manufacture are disclosed. A heat exchange system in accordance with a particular embodiment can include a plurality of elements with a plurality of airflow channels. A plurality of peripheral spacers are positioned toward edges of neighboring elements and extend in a first direction. A first airflow path extends in the first direction, and is at least partially defined by the corresponding elements and the peripheral spacers. A second airflow path is defined by the airflow channels and extends in a second direction, and an airflow blocker is positioned at a corner portion of the elements to prevent fluid communication between the first and the second airflow paths at the elements. In certain embodiments, the heat exchange system can further include a dehumidifier having an evaporator positioned between the first and second airflow paths.

Abstract: Compact dehumidifiers and associated systems and methods are disclosed. A representative system includes a housing having an airflow entrance, and airflow exit, and a linear flowpath between the entrance and exit. The system further includes a refrigeration cycle having, in sequence along the flowpath, an evaporator, a compressor, a condenser, and an air flow driver. A controller is operatively coupled to the evaporator, compressor, condenser, and airflow driver to operate the refrigeration cycle for removing moisture from an entering airflow.

Abstract: A hard surface cleaner having a cleaning head with rotational assist. In one embodiment, the cleaning head includes a housing having a fluid-supply and vacuum inlets. The housing also includes at least one flow-control inlet arranged with the vacuum inlet to draw a flow of air into the housing through the flow-control inlet. The cleaning head further includes a spray assembly at least partially enclosed within the housing. The spray assembly includes a shaft, at least one spray nozzle operably coupled to the shaft, and a plurality of fins also operably coupled to the shaft. The spray nozzle is configured to receive a pressurized fluid from the fluid-supply inlet and to rotate about the shaft by delivering the pressurized fluid toward a floor surface. The fins are positioned at least partially within the flow of air through the flow control inlet to control the rotational speed of the spray assembly.

Abstract: Rotary surface cleaning machines with recovery tanks and associated systems and methods are disclosed. A representative rotary surface cleaning machine in accordance with the present disclosure includes a base assembly, a support frame coupled to the base assembly, a recovery tank carried by the support frame, a vacuum blower, and a discharge pump. The vacuum blower draws a mixture of air and fluid from the base assembly to the recovery tank when the base assembly is in operation. Then the discharge pump discharges a liquid portion of the mixture from the recovery tank.