The British Columbia Building Code | Notes to Part 1 | Compliance Pt 1

Division A: Compliance, Objectives and Functional Statements Notes to Part 1 – Compliance
British Columbia Building Code 2018 Division A
Notes to Part 1
Compliance
A-1.1.1.1.(3) Factory-Constructed Buildings. The British Columbia Building Code applies the same requirements to
site-built and factory-constructed buildings. However, it can often be difficult to determine whether a factory-constructed building
complies with the Code once it has been delivered to the construction site because many of the wall, roof and floor assemblies are
closed in and so their components cannot be inspected. CSA A277, “Procedure for Factory Certification of Buildings,” was developed
to address this problem with regard to residential, commercial and industrial buildings. This standard describes a procedure whereby
an independent certification agency can review the quality control procedures of a factory and make periodic unannounced inspections
of its products. The standard is not a building code, only a procedure for certifying compliance of factory-constructed components
with a building code or other standard. If a factory-constructed building bears the label of an accredited certification agency indicating
that compliance with the National Building Code has been certified using the CSA A277 procedure, the accepting authority will have
some assurance that the concealed components do not require re-inspection on site.
On the other hand, standards in the CSA Z240 MH Series, “Manufactured Homes,” do resemble a building code. These portions
contain requirements in many of the areas where the British Columbia Building Code also has requirements and frequently the
requirements are different. Other portions of these requirements are different. Other portions of the Z240 standards deal with special
requirements for manufactured homes related to the fact that these houses must be moved over roads, which is an issue the British
Columbia Building Code does not address. The British Columbia Building Code considers mobile homes certified to the Z240
standard as acceptable housing and they are permitted under Clause 1.1.1.1.(2)(g).
The British Columbia Building Code does reference CSA Z240.10.1, “Site Preparation, Foundation, and Anchorage of Manufactured
Homes,” which is not actually part of the CSA Z240 MH Series. This standard contains requirements for surface foundations where
buildings – not just houses – comply with the deformation resistance test provided in CSA Z240.2.1, “Structural Requirements for
Manufactured Homes.”
A-1.1.1.1.(5) Heritage Buildings. Many local governments have identified conservation of selected heritage properties, or
protection of the heritage character of certain areas, as being community planning objectives. The Province’s planning objectives and
growth strategy encourage and support local government in this effort. The key is to find ways to make restoration and rehabilitation
of heritage buildings economically viable for the properties’ owners.
It is generally recognized that the present British Columbia Building Code was primarily written for new construction and provides for
a performance level that is significantly higher than what exists with many older buildings. To apply present Code provisions to
existing buildings is, in many cases, impractical and with heritage buildings may compromise historic appearances or authenticity.
Therefore, the Table of Alternate Compliance Methods for Heritage Buildings was developed to provide alternate methods for
complying with the performance level intended by the Code. The use of sprinklers is advocated as one of the primary methods in
assuring this performance level for heritage buildings. Sprinkler systems not only control the fire, which aids evacuation, but also
provides the added benefit of protecting the building from possible destruction by fire.
The Table of Alternative Compliance Methods for Heritage Buildings represents some of the ways that restoration and rehabilitat
ion
of
heritage buildings can be facilitated without compromising the objectives of the Code. Only buildings which have been identified
by the provincial or a local government are included in the definition of “heritage building.” For these buildings, conservation is also a
public objective. Heritage buildings often offer unique problems and opportunities, and each situation must be assessed individually.
The use of the Alternate Compliance Methods in Table A-1.1.1.5
. is not mandatory, and an owner may choose
to apply acceptable solutions in Division B,
to apply alternate solutions under Clause 1.2.1.1.(1)(b),
to apply alternate compliance methods in Table A-1.1.1.5
., or
to combine these options.
A-1.1.1.2.(1) Application to Existing Buildings. This Code is most often applied to existing or relocated buildings when
an owner wishes to rehabilitate a building, change its use, or build an addition, or when an enforcement authority decrees that a
building or class of buildings be altered for reasons of public safety. It is not intended that the British Columbia Building Code be used
to enforce the retrospective application of new requirements to existing buildings or existing portions of relocated buildings, unless
specifically required by local regulations or bylaws. For example, although the British Columbia Fire Code could be interpreted to
Effective December 10, 2018 to December 11, 2019