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Right - Skylights provide natural light while maintaining privacy in a narrow second-story bedroom.

Right - Skylights provide natural light while maintaining privacy in a narrow second-story bedroom.
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Right – A transfer grille is installed high on a bedroom wall in a new-construction home

Right – A transfer grille is installed high on a bedroom wall in a new-construction home
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Right – Transfer grilles are installed over doorways to bedrooms in a new-construction home

Right – Transfer grilles are installed over doorways to bedrooms in a new-construction home
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Right – Transfer grilles, Jump ducts, and wall grilles provide passive returns for air returning from bedrooms to the central HVAC system

Right – Transfer grilles, Jump ducts, and wall grilles provide passive returns for air returning from bedrooms to the central HVAC system
Video:

Sewer Backflow and Pumps

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The air tightness of the garage-to-house air barrier can be tested with a blower door kit and two manometers

The air tightness of the garage-to-house air barrier can be tested with a blower door kit and two manometers
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The air tightness of the house-garage air barrier can be tested using a CFM50 test that is run first with the garage door to outdoors closed and then with the overhead garage door to outdoors open

The air tightness of the house-garage air barrier can be tested using a CFM50 test that is run first with the garage door to outdoors closed and then with the overhead garage door to outdoors open
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This home’s exterior walls include Larsen trusses, 9-inch I-joists attached through exterior sheathing to wall studs creating a 9-inch wall cavity that was filled with blown insulation and forms extra deep windowsills.

This home’s exterior walls include Larsen trusses, 9-inch I-joists attached through exterior sheathing to wall studs creating a 9-inch wall cavity that was filled with blown insulation and forms extra deep windowsills.
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Transfer grill sealed with mastic

Transfer grill sealed with mastic
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Transfer grille not sealed

Transfer grille not sealed
Video:

Transfer Grilles (1)

Video:

Transfer Grilles (2)

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Wrong – Cars should never be left running in a closed garage. Air seal walls, install a garage fan, and inform home owners of the dangers of running a vehicle with the garage door shut

Wrong – Cars should never be left running in a closed garage. Air seal walls, install a garage fan, and inform home owners of the dangers of running a vehicle with the garage door shut