Wind Construction conversions from Fire constructions:

 Common Fire constructions (9 types):           ISO Fire Code                   Corresponding Wind constructions (4 types):

  Frame                                                           Code 1                            Frame

  Joisted Masonry                                           Code 2                             Masonry

  Noncombustible                                            Code 3                            Masonry

  Masonry Noncombustible                             Code 4                             Semi-Wind Resistive

  Modified Fire Resistive                                 Code 5                             Wind Resistive

  Fire Resistive                                               Code 6                             Wind Resistive

  Superior Masonry/heavy timber                   Code 7                              Semi-Wind Resistive

  Superior Noncombustible                             Code 8                              Semi-Wind Reistive

  Superior Masonry Noncombustible               Code 9                              Wind Resistive

Fire Construction Definitions:

Frame (code 1)

Buildings where the exterior walls are wood or other combustible materials, including construction where combustible materials are combined with other materials such as brick veneer, stone veneer, wood ironclad, and stucco on wood.

Joisted Masonry (code2)

Buildings where the exterior walls are constructed of masonry materials such as adobe,brick, concrete, gypsum block, hollow concrete block, stone, tile or similar materials, and where the floors and roof are combustible. (Other than construction defined by the description for code 7.)

Noncombustible (code 3)

Buildings where the exterior walls, floors, and the roof are constructed of, and supported by,metal, asbestos, gypsum or other noncombustible materials. (Other than construction defined by the defined by the description for code 8.)

Masonry Noncombustible (code 4)

Buildings where the exterior walls are constructed of masonry materials as described in code 2 with the floors and roof of metal or other noncombustible materials. (Other than construction defined by the description for code 9.)

Modified Fire Resistive (code5)

Buildings where the exterior walls and the floors and roof are constructed of masonry or fire resistive materials with a fire resistance rating of one hour or more but less than two hours.

Fire Resistive (code 6)

Building where the exterior walls and the floors and roof are constructed of masonry or fire resistive materials having a fire resistance rating of not less than two hours.

Superior Masonry/Heavy Timber (code 7)

Joisted masonry buildings where the entire roof is a minimum of 2 inches in thickness and is supported by timbers having a minimum dimension of 6 inches; or, where the entire roof assembly is documented to have a wind uplift classification of 90 or equivalent.

Superior Noncombustible (code 8)

Noncombustible buildings where the entire roof is constructed of 22 gauge metal (or heavier)on steel supports; or, where the entire roof is constructed of 2 inches of masonry on steel supports; or, where the entire roof assembly is documented to have a wind uplift classification of 90 or equivalent.

Superior Masonry Noncombustible (code 9)

Masonry noncombustible buildings where the entire roof is constructed of 2 inches of masonry on steel supports; or, when the entire roof is constructed of 22 gauge metal (or heavier) on steel supports; or, where the entire roof assembly is documented to have a wind uplift classification of 90 or equivalent.