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Construction deterioration & building durability glossary

Article & glossary hosted by A. Sebastian Engineering and Investigation Services

A method entailing stepping back successive courses of masonry.

A groove in a joint or special unit to receive roofing or flashing.

Reinforced brick masonry

re·ha·bil·i·tate/"rE-&-'bi-l&-"tAt, "rE-h&-/
Function: transitive verb
Inflected Form(s): -tat·ed; -tat·ing
Etymology: Medieval Latin rehabilitatus, past participle of rehabilitare, from Latin re- + Late Latin habilitare to habilitate Date: circa 1581
1. to restore to a former performance level or capacity; 2. to restore to a former state (as of habilitation, efficiency, or good management)
- re·ha·bil·i·ta·tion /-"bi-l&-'tA-sh&n/ noun
- re·ha·bil·i·ta·tive /-'bi-l&-"tA-tiv/ adjective
- re·ha·bil·i·ta·tor /-"tA-t&r/ noun

(as defined in the Secretary of the Interior's Standards for Rehabilitation) "The process of returning a property to a state of utility, through repair or alteration, which makes possible an efficient contemporary use while preserving those portions and features of the property which are significant to its historic, architectural, and cultural values."
Rehabilitation not only encourages the repair of historic buildings, it allows appropriate alterations to ensure their efficient contemporary use. Examples include the continued use of hotels, stores, and private residences, as well as the adaptation of vacant schools into apartments, warehouses into offices, and industrial buildings into commercial space.
Because rehabilitation focuses on how buildings can be successfully used for contemporary purposes, it may be considered somewhat more flexible than more traditional treatments, such as preservation and restoration. But even though rehabilitation allows for more change, a historic building's distinctive materials, features, and spaces still must be preserved.

Masonry units, reinforcing steel, grout and/or mortar combined to act together in resisting forces.


re·store/ri-'stOr, -'stor/
Function: transitive verb
Inflected Form(s): re·stored; re·stor·ing
Etymology: Middle English, from Old French restorer, from Latin "restaurare" to renew, rebuild, alteration of
Date: 14th century
1. to put or bring back into existence or use 2. to bring back to or put back into a former or original state 3. to renew

Any surface turned back from the face of a principal surface.

That portion of a jamb or recess which is visible from the face of a wall.

A paved or unpaved surface for takeoffs and landings of rotary wing aircraft. It is physically smaller than a rotary wing runway, typically 100 by 100 feet square, and is normally located at a site that is remote from an airfield or heliport. For inventory purposes, only the prepared surface is included.

A brick laid on its face edge so that the normal bedding area is visible in the wall face. Frequently spelled rolok.

A cleared area extending beyond the ends of a runway. These are not normal traffic areas and are intended only to minimize the probability of serious damage to aircraft using these areas accidentally or in cases of emergency.

A flexible or rigid paved airfield surface used for normal takeoffs and landings of fixed or rotary wing aircraft. It can also accommodate rotary wing aircraft. For inventory purposes, only the prepared runway surface is included.

An unpaved, prepared surface for training, emergency, and other special takeoff and landing operations of fixed or rotary wing aircraft. It can also accommodate rotary wing aircraft. For inventory purposes, only the prepared runway surface is included.

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