Question

Masonry Noncombustible (ISO Class 4, IBC Type IIA) refers to which type of construction?

1) Type I
2) Type II
3) Type III
4) Type IV

Answer 1

Option 2). Masonry Noncombustible (ISO Class 4, IBC Type IIA) refers to Type II construction in the International Building Code (IBC). Type II construction is noncombustible and provides a higher level of fire resistance. It is commonly used for commercial and institutional buildings.

Step-by-step explanation:

In the International Building Code (IBC), Type II construction is referred to as "Masonry Noncombustible (ISO Class 4, IBC Type IIA)".

Compared to other building classifications, type II structure is noncombustible and offers a better level of fire resistance. It is frequently utilized for institutional and commercial structures.

Concrete, masonry, and steel are examples of noncombustible building materials that are less prone to catch fire and spread flames.