Building Regulation Studies Question 2022

Building Regulation Studies 1
BUILDING REGULATION STUDIES
Name
Course
Professor
University
City/state
Date

Building Regulation Studies 2
Building Regulation Studies
Question 5
The type of construction is determined by the Building Codes of Australia (BCA) building class
and number of storeys of the building. In this scenario, the building is a two storey boarding
house. The boarding house has a total floor area of 320 m2 (exceeding 300 m2) and its top level
has access to two external non fire isolated stairs. Therefore the classification of this building is
class 3. According to Australian Building Codes Board (2019), the type of construction for a two
storey class 3 building is type B.
Question 6
The type of fire resisting construction is dependent on the type of construction. The building in
this scenario has two storeys since the factory and office are not at the same level. One level of
the building, which has a total floor area of 150m2, is an office building (class 5) and the other
level, which has a total floor area of 600m2, is a factory (class 8). This implies that the top floor
is smaller than the ground floor and located at one corner of the building, as illustrated by the
schematic in Figure 1 below. Thus based on this combination (two storey and class 5 and 8
buildings), the type of construction for this building is type C (Queensland Building and
Construction Commission, 2014). This means that the type of fire resting construction
required for the building is type C (least fire resisting construction).

Building Regulation Studies 3
Figure 1: Schematic of the building
The fire resistance level (FRL) for the different building elements of type C fire resisting
construction is provided in Table 1 below
Table 1: FRL of type C fire resisting construction
Building element Fire resistance level (FRL)
Office (class 5) Factory (class 8)
External wall 90/90/90 90/90/90
External column 90/-/- 90/-/-
Common walls 90/90/90 90/90/90
Internal walls 60/60/60 60/60/60
Roofs -/-/- -/-/-
Question 12
The building in this scenario is a single storey factory (class 8), which is a type C that has a
lower risk of fire thus it is the least fire resistant. Below are some of the requirements for the fire
hydrant and fire hose reel of the building: