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The moisture level of the wall studs is tested with a moisture meter to verify that the wood is sufficiently dry before installing drywall.

The moisture level of the wall studs is tested with a moisture meter to verify that the wood is sufficiently dry before installing drywall.
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These ICF homes are blower door tested during construction, before the drywall is installed, when air leaks can be easily sealed.

These ICF homes are blower door tested during construction, before the drywall is installed, when air leaks can be easily sealed.
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This air handling unit provides outside air at the same rate as the air being exhausted from the bathroom exhaust fan; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake and dehumidification is provided by a separate unit

This air handling unit provides outside air at the same rate as the air being exhausted from the bathroom exhaust fan; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake and dehumidification is provided by a separate unit
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This Houston home’s unique tri-generation system combines cooling, heating, dehumidifying, hot water, and power production and storage.

This Houston home’s unique tri-generation system combines cooling, heating, dehumidifying, hot water, and power production and storage.
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To prepare for a total duct test at final, cover all of the supply outlets and return inlets

To prepare for a total duct test at final, cover all of the supply outlets and return inlets
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To prepare for a total duct test at rough-in, cover all of the supply outlets and return inlets

To prepare for a total duct test at rough-in, cover all of the supply outlets and return inlets
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To test house-to-garage airtightness, after connecting the green tubing as shown, connect the red tubing as follows: connect the input tap on channel “A” of the two-channel manometer (2CM) to the reference tap on channel “B” of the 2CM

To test house-to-garage airtightness, after connecting the green tubing as shown, connect the red tubing as follows: connect the input tap on channel “A” of the two-channel manometer (2CM) to the reference tap on channel “B” of the 2CM
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To test house-to-garage airtightness, first set up the blower door kit with the smart manometer in the blower door

To test house-to-garage airtightness, first set up the blower door kit with the smart manometer in the blower door
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Two manometers are used when pressure testing the airtightness of the walls separating the house from an attached garage

Two manometers are used when pressure testing the airtightness of the walls separating the house from an attached garage
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Ventilation in this unit is provided by an Energy Recovery Ventilator; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake; conditioned air is provided by an air handler and dehumidification is provided separately

Ventilation in this unit is provided by an Energy Recovery Ventilator; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake; conditioned air is provided by an air handler and dehumidification is provided separately
Video:

Wallingford Passive House | Blower Door Test

Case Study:

WPPI GreenMax-Chambers Residence: Near Zero Energy Monitoring Summary

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Wrong - Cold spots along the top plate combined with lack of ventilation have encouraged mold growth along this bathroom ceiling.

Wrong - Cold spots along the top plate combined with lack of ventilation have encouraged mold growth along this bathroom ceiling.
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Wrong - Construction materials show signs of mold.

Wrong - Construction materials show signs of mold.
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Wrong - Dehumidifier unit was not commisioned before following installation and the installer forgot to remove this tag and plug the holes.

Wrong - Dehumidifier unit was not commisioned before following installation and the installer forgot to remove this tag and plug the holes.
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Wrong - Lack of insulation in the wall above this window combined with poor bathroom ventilation has contributed to mold growth.

Wrong - Lack of insulation in the wall above this window combined with poor bathroom ventilation has contributed to mold growth.
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Wrong - Poor ventilation has encouraged the build up of mold in this shower.

Wrong - Poor ventilation has encouraged the build up of mold in this shower.
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Wrong - This IR image of a second-floor landing shows that attic air is flowing far into the interstitial floor cavity of the second-floor landing

Wrong - This IR image of a second-floor landing shows that attic air is flowing far into the interstitial floor cavity of the second-floor landing
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Wrong - This IR image shows where hot attic air has penetrated into the floor cavity that lies behind the stairwell wall

Wrong - This IR image shows where hot attic air has penetrated into the floor cavity that lies behind the stairwell wall
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Wrong – The blower door is installed improperly with a gap at the corner and along the side of the frame that will allow air leakage and could allow the frame apparatus to become dislodged during testing

Wrong – The blower door is installed improperly with a gap at the corner and along the side of the frame that will allow air leakage and could allow the frame apparatus to become dislodged during testing
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Wrong – The blower door pressure reference hose (blue) ends too close to the outdoors side of the fan. Air moving across the end of the hose will affect the pressure reading

Wrong – The blower door pressure reference hose (blue) ends too close to the outdoors side of the fan. Air moving across the end of the hose will affect the pressure reading
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Wrong – The gas water heater is left on during enclosure leakage testing, which could result in dangerous backdrafting of the water heater when the home is depressurized

Wrong – The gas water heater is left on during enclosure leakage testing, which could result in dangerous backdrafting of the water heater when the home is depressurized
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Wrong – this framing material has a moisture content above 18% as shown by the moisture meter

Wrong – this framing material has a moisture content above 18% as shown by the moisture meter