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Wrong - This batt insulation is not aligned with the subfloor and joists.

Wrong - This batt insulation is not aligned with the subfloor and joists.
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Wrong - This flex duct is so twisted air flow is greatly restricted

Wrong - This flex duct is so twisted air flow is greatly restricted
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Wrong - This tape product is not code approved for duct sealing.

Wrong - This tape product is not code approved for duct sealing.
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Wrong - Two exhaust terminations are joined in a roughly cut, restrictive hole that is not air sealed.

Wrong - Two exhaust terminations are joined in a roughly cut, restrictive hole that is not air sealed.
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Wrong - Vent screening on outdoor air intake has been clogged with dirt and screen has been pulled up into vent and is no longer covering the entire opening.

Wrong - Vent screening on outdoor air intake has been clogged with dirt and screen has been pulled up into vent and is no longer covering the entire opening.
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Wrong -The duct does not have enough support so it is sagging and compressing the duct

Wrong -The duct does not have enough support so it is sagging and compressing the duct
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Wrong -The top of the sump pump crock is too high above the crawlspace grade level for any water in the crawl to enter the sump.

Wrong -The top of the sump pump crock is too high above the crawlspace grade level for any water in the crawl to enter the sump.
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Wrong – A closable air vent should not be used as a flood vent

Wrong – A closable air vent should not be used as a flood vent
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Wrong – A clothes dryer that vents to the crawlspace can contribute moisture to the crawlspace; this can result in damp, molding, and rotting insulation

Wrong – A clothes dryer that vents to the crawlspace can contribute moisture to the crawlspace; this can result in damp, molding, and rotting insulation
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Wrong – A poorly sealed window and window well allow bulk water to enter the crawlspace from ground that slopes toward the structure

Wrong – A poorly sealed window and window well allow bulk water to enter the crawlspace from ground that slopes toward the structure
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Wrong – Duct is pulling away from ceiling because it is not sealed to the ceiling

Wrong – Duct is pulling away from ceiling because it is not sealed to the ceiling
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Wrong – Duct is pulling away from floor because it is not sealed to floor

Wrong – Duct is pulling away from floor because it is not sealed to floor
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Wrong – Excessive bends in flex ducts

Wrong – Excessive bends in flex ducts
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Wrong – Flex duct is coiled and looped

Wrong – Flex duct is coiled and looped
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Wrong – Flex duct is pinched

Wrong – Flex duct is pinched
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Wrong – No polyethylene sheeting vapor barrier is installed on the crawlspace floor

Wrong – No polyethylene sheeting vapor barrier is installed on the crawlspace floor
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Wrong – Penetration through the floor is not air sealed

Wrong – Penetration through the floor is not air sealed
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Wrong – The HVAC compressor was not adequately secured to an elevated platform and was washed away.

Wrong – The HVAC compressor was not adequately secured to an elevated platform and was washed away.
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Wrong – The polyethylene sheeting vapor barrier is not attached to the piers with mechanical fasteners

Wrong – The polyethylene sheeting vapor barrier is not attached to the piers with mechanical fasteners
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Wrong – The vapor barrier is not secured to the walls of this crawlspace.

Wrong – The vapor barrier is not secured to the walls of this crawlspace.
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Wrong – These flex ducts are pulled taut, which is correct but they are inadequately supported with straps that are spaced too far apart and are too tight causing pinching of the insulation and turns are sharp rather than gradual.

Wrong – These flex ducts are pulled taut, which is correct but they are inadequately supported with straps that are spaced too far apart and are too tight causing pinching of the insulation and turns are sharp rather than gradual.
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Wrong – This standard air vent has become blocked by flood debris and is located at the top of the foundation wall; it should not be used as a flood vent

Wrong – This standard air vent has become blocked by flood debris and is located at the top of the foundation wall; it should not be used as a flood vent
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Wrong – This vented crawlspace has standing water because steps were not taken to address site conditions that led to bulk water flow into the crawlspace

Wrong – This vented crawlspace has standing water because steps were not taken to address site conditions that led to bulk water flow into the crawlspace
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Wrong – Two combustion appliances are sharing a flue which could lead to backdrafting if one appliance is updated to a direct vent appliance and disconnected from shared chimney.

Wrong – Two combustion appliances are sharing a flue which could lead to backdrafting if one appliance is updated to a direct vent appliance and disconnected from shared chimney.