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Rater-measured ventilation rate is within 100-120% of HVAC contractor design value (2.11)

Rater-measured ventilation rate is within 100-120% of HVAC contractor design value (2.11)
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Retrofit an existing roof by installing rigid foam above the roof deck with a ventilation space between the rigid foam and the new roof sheathing plus new moisture and air control layers and cavity insulation in the roof rafters.

Retrofit an existing roof by installing rigid foam above the roof deck with a ventilation space between the rigid foam and the new roof sheathing plus new moisture and air control layers and cavity insulation in the roof rafters.
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Returning to Your Flood Damaged Home

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Right - A duct leakage test is conducted from the door of a large ERV Cabinet on a rooftop using a duct tester fan and a blower door frame, and the chamber that the duct tester is set up on is sealed where it leads to the ERV core or enthalpy wheel

Right - A duct leakage test is conducted from the door of a large ERV Cabinet on a rooftop using a duct tester fan and a blower door frame, and the chamber that the duct tester is set up on is sealed where it leads to the ERV core or enthalpy wheel
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Right - A durable, vented cover is installed over this exhaust duct to prevent bird and pest entry

Right - A durable, vented cover is installed over this exhaust duct to prevent bird and pest entry
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Right - A heat recovery ventilator supplies all living spaces with fresh air while transferring heat for energy savings.

Right - A heat recovery ventilator supplies all living spaces with fresh air while transferring heat for energy savings.
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Right - An in-line air flow testing station is installed in a straight section of smooth metal duct (red outline) to determine the air flow rate of a fresh air intake for a whole house ventilation system.

Right - An in-line air flow testing station is installed in a straight section of smooth metal duct (red outline) to determine the air flow rate of a fresh air intake for a whole house ventilation system.
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Right - Each individual unit in this multifamily building has its own energy recovery ventilator (ERV) to provide balanced ventilation to the dwelling

Right - Each individual unit in this multifamily building has its own energy recovery ventilator (ERV) to provide balanced ventilation to the dwelling
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Right - Flex duct is used to connect the duct tester to the top of a duct riser where it meets the roof; connecting the duct tester to the largest part of the ductwork helps ensure uniform pressure distribution during a duct leakage test

Right - Flex duct is used to connect the duct tester to the top of a duct riser where it meets the roof; connecting the duct tester to the largest part of the ductwork helps ensure uniform pressure distribution during a duct leakage test
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Right - HVAC ducts should be well-supported with minimal bends and pinching.

Right - HVAC ducts should be well-supported with minimal bends and pinching.
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Right - In cooler climates, landscape shading should focus on the east- and west-facing walls, while leaving the south side of the house clear for solar access in winter (well-sized roof overhangs could provide summer shading for the south-facing windows)

Right - In cooler climates, landscape shading should focus on the east- and west-facing walls, while leaving the south side of the house clear for solar access in winter (well-sized roof overhangs could provide summer shading for the south-facing windows)
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Right - Provide passive ventilation in hot climates by installing wind chases and vents.

Right - Provide passive ventilation in hot climates by installing wind chases and vents.
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Right - Skylights can add natural light in rooms with limited wall space and if openable can provide desirable ventilation, especially when located at the top of stair wells.

Right - Skylights can add natural light in rooms with limited wall space and if openable can provide desirable ventilation, especially when located at the top of stair wells.
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Right - The automated ventilation system has a sensor built in switch that can detect indoor air pollution; if it senses a rise in humidity, VOCs, smoke, carbon dioxide, or small particulates, the system will turn on the nearest fan to eliminate pollution

Right - The automated ventilation system has a sensor built in switch that can detect indoor air pollution; if it senses a rise in humidity, VOCs, smoke, carbon dioxide, or small particulates, the system will turn on the nearest fan to eliminate pollution
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Right - The energy recovery ventilator ducts supply filtered outside air to multiple locations in the home and continuously exhaust stale air to provide clean, balanced ventilation.

Right - The energy recovery ventilator ducts supply filtered outside air to multiple locations in the home and continuously exhaust stale air to provide clean, balanced ventilation.
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Right - This air flow testing station includes a manometer to determine air flow rate for a whole house ventilation system.

Right - This air flow testing station includes a manometer to determine air flow rate for a whole house ventilation system.
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Right - This enclosed parking garage in a multistory multifamily building is equipped with mechanical exhaust to remove airborne contaminants from the garage.

Right - This enclosed parking garage in a multistory multifamily building is equipped with mechanical exhaust to remove airborne contaminants from the garage.
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Right - This house has key features to block heat such as such as tree shading for the west wall and roof, minimized west-facing windows, and a porch roof, floor, and wing walls creating deep architectural overhangs and fins to shade south-facing windows

This house has key features to block heat such as such as tree shading for the west wall and roof, minimized west-facing windows, and a porch roof, floor, and wing walls creating deep architectural overhangs and fins to shade south-facing windows
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Right - This shared enclosed parking garage is equipped with exhaust fans to remove airborne contaminants from the garage.

Right - This shared enclosed parking garage is equipped with exhaust fans to remove airborne contaminants from the garage.
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Right - Window shading is built into the south side of this home and east facing windows have been minimized to reduce heat gain from the summer sun while allowing low winter sun into the home

Right - Window shading is built into the south side of this home and east facing windows have been minimized to reduce heat gain from the summer sun while allowing low winter sun into the home
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Right – A non-combustible 1/8-inch mesh screen is installed on vent openings to reduce the risk of ember intrusion.

Right – A non-combustible 1/8-inch mesh screen is installed on vent openings to reduce the risk of ember intrusion.
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Right – A separately ducted HRV supplies fresh air to most rooms in the home.

Right – A separately ducted HRV supplies fresh air to most rooms in the home.
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Right – A ventilating dehumidifier with a fresh air intake is tied into the central duct system of this mixed-humid climate home.

Right – A ventilating dehumidifier with a fresh air intake is tied into the central duct system of this mixed-humid climate home.
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Right – An ERV provides filtered fresh air to this small home.

Right – An ERV provides filtered fresh air to this small home.