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The CLM description of joisted masonry construction, followed by the associated ISO construction code, is exterior walls of masonry material (adobe, brick, concrete, gypsum block, hollow concrete block, stone, tile, or similar materials), with combustible floor and roof (Construction Code 2). The construction code indicates the ranking of this ...

www.amrisc.com/Amrisc pdfs/CompleteSOV/ISOTypesDescriptions.pdf

Joisted Masonry constructed buildings where the following additional conditions exist: Where the entire roof has ... A subset of MNC Construction is Superior Masonry Non-Combustible Construction MNC-II, also known as ISO 9. This shall apply to Masonry Non-combustible constructed buildings where the following .


Joisted Masonry (ISO Class 2, IBC Type III, IBC Type IV) Light Noncombustible ... Based on the information you provided, this building would be classified as Class 4 Masonry Non-Combustible. To move up to a class 5 or 6, it would have to have a minimum amount of Fire Protection for the steel elements or be reinforced concrete with a fire rating ...


Masonry / Joisted Masonry Commercial (ISO 2) Definition. A building that has the exterior walls constructed of a material such as brick, hollow or solid concrete block, concrete, gypsum block, clay tile, stone, or similar materials.


ISO Class 2- Joisted Masonry. Buildings with exterior walls of masonry or fire-resistive construction rated for not less than one hour and with combustible floors and roofs. This typically includes block constructed buildings and can include heavy timber buildings. Harder to ignite, and burns at a slower rate.


Joisted Masonry Construction. This Construction Brief will give you an overview of ISO's Construction Class 2 — joisted masonry construction.When you've completed this course, you'll know what an ISO report means when it says a building is joisted masonry construction.

drywallsystems.org/construction/Construction_types/construction types ISO C4.htm

Masonry Noncombustible (ISO Class 4, IBC Type IIA) Masonry Noncombustible construction is ISO Class 4. ISO Class 4 encompasses IBC Type Type IIA (protected). -Learn the elements of masonry non-combustible construction.


What is MASONRY NONCOMBUSTIBLE CONSTRUCTION?. Non-combustible materials for the roof and floor, and brick or concrete on the outside walls of a structure are the main ingredients in this type of construction.


Joisted Masonry Construction. A building that has exterior walls constructed of masonry materials, such as adobe, brick, concrete, gypsum block, hollow concrete block, stone, tile, or other similar materials, and a roof and floor constructed of combustible materials. A floor that rests directly on the ground is an exception and may be disregarded.


This is especially true in the masonry non-combustible (CC 4) classification. CC 4 holds many similarities to CC 2, joisted masonry. The key difference between these two classes is the wall and roof assemblies. Let’s look at their definitions: The Commercial Lines Manual (CLM), Rule 15, defines the joisted masonry class (CC 2) as: