Housing Type	Damage Cause	Damage Class	Criterion
Conventional w Basemt	Flooding	Affected	Minimal damage to structure or contents. Any water line in the crawl space or basement when essential living space or mechanical components are not damaged or submerged.
Conventional w Basemt	Flooding	Minor	Water line up to 18 inches in an essesntial living space. Damage to mechanical components.
Conventional w Basemt	Flooding	Major	For essesntial living space: water level 18 inches or greater and damage to mechanical components or electrical utilities such as main electrical panel; AND failure or partial failure to structural walls, foundation, or support structures. For non-essential living space: failure or partial failure to structural walls, foundation, or support structures; AND severe damage to or complete failure of mechanical components or electrical utilities (such as main electrical panel) due to water level.
Conventional w Basemt	Flooding	Destroyed	2 or more walls bowed, missing, or collapsed. Residence is unsafe, and requires immediate demolition. Per the matrix, there is no water depth requirement for a destroyed residence.
Conventional w/o Basemt	Flooding	Affected	Minimal damage to structure or contents. Any water line in the crawl space when essential living space or mechanical components are not damaged or submerged.
Conventional w/o Basemt	Flooding	Minor	Water line up to 18 inches in an essential living space. Damage to mechanical components.
Conventional w/o Basemt	Flooding	Major	Water line above 18 inches. Electrical outlets inundated regardless of water depth. Partially collapsed or collapsed wall(s).
Conventional w/o Basemt	Flooding	Destroyed	2 or more walls bowed, missing, or collapsed. Residence is unsafe, and requires immediate demolition. Per the matrix, there is no water depth requirement for a destroyed residence.
Manufactured	Flooding	Affected	Water line in yard; no damage affecting habitability. Cosmetic damage only.
Manufactured	Flooding	Minor	Water line is below the floor system. Skirting or HVAC is impacted. No structural damage to the residence and it has not been displaced from the foundation.
Manufactured	Flooding	Major	Water has come into contact with the floor system. Residence has been displaced from the foundation, block or piers and other structural components have been damaged.
Manufactured	Flooding	Destroyed	Complete failure of 2 or more major structural components.
Conventional	Event Other Than Flooding	Affected	Partial missing shingles or siding. Cosmetic damage. Broken screens, gutter damage, or debris. Damage to an attached structure such as porch, carport, garage, or outbuilding not for commercial use. Damage to landscaping, retaining walls, or downed trees that do not affect access to the residence.
Conventional	Event Other Than Flooding	Minor	Non-structural damage to roof componencts over essential living space to include shingles. Non-structural damage to interior wall components. Non-structural damage to exterior components. Multiple small vertical cracks in foundation. Damage to chimney. Damage to mechanical components. Damage or disaster related contamination to a private well or septic system.
Conventional	Event Other Than Flooding	Major	Failure or partial failure to structural elements of the roof over required rooms. Failure or partial failure to structural elements of the walls. Failure or partial failure to foundation.
Conventional	Event Other Than Flooding	Destroyed	Only foundation remains. Residence will require immediate demolition or removal b/c of disaster related damage or confirmed imminent danger.
Manufactured	Event Other Than Flooding	Affected	Frame is not bent, twisted, or otherwise compromised. No structural components of the dwelling have been damaged.
Manufactured	Event Other Than Flooding	Minor	No structural damage to the residence and it has not been displaced from the foundation. Non-structural components have sustained damage. Skirting or HVAC is impacted.
Manufactured	Event Other Than Flooding	Major	Residence has been displaced from the foundation, block or piers and other structural components have been damaged.
Manufactured	Event Other Than Flooding	Destroyed	Frame is bent, twisted, or otherwise compromised. Missing roof covering or the structural ribbing has collapsed for the majority of the roof system.
	Damage Assessment Field Guide (June 2018)	Download	Please reference the Damage Class pages, or view the Field Guide in its entirety for more detailed information.