bca 2013 slide show vba august 2013

The National Construction Code Series

Changes to Building Code of Australia 2013

Victorian Building Authority

The National Construction Code Series

Volume One, Two and Guide to Volume One

BCA Adoption Date 1 May 2013

BCA REFERENCED DOCUMENTS

Referenced Documents

Transitional period completed

Transitional period commenced

Provision changes due to a

referenced doc.

Other referenced docs.


Transitional Period Completed

AS/NZS 1170 Structural design actions Part 2 Wind Actions 2011

AS 2870 Residential slabs and footings Construction 2011

AS/NZS 1170.2-2011 Structural design actions Wind

actions

Amendment 1 Correction Amendment

Minor amendments to correct errors to formula

Corrections to wind maps for both Australia and New

Zealand

Amendment 2 Revised Text Amendment

Changes to terrain categories and surface roughness for wind

approaching over water.

Changes to terrain-height multipliers for tropical-cyclone

regions.


Transitional Period Commenced

AS 1668 The use of mechanical ventilation and air-conditioning in buildings

Part 2 Mechanical ventilation for acceptable indoor-air quality 1991 and

AS 1668.2 2012 (New)

AS 2118 Automatic fire sprinkler systems Part 4 Residential 1995 Part 6 Combined sprinkler and hydrant 1995 and

AS 2118 Part 4 and Part 6 2012 (New)

AS/NZS 4055-2006 Wind Loads for Housing

and AS/NZS 4055 -2012

Definitions of terrain categories 1, 2 and 3 align with AS/NZS

1170.2-2011

Classification of water as terrain category 1 (aligns with

AS/NZS 1170.2)

A new terrain category (TC 1.5) applicable to wide bodies of

water where waves may contribute to roughness near

shorelines.

Cladding pressure zones are defined with additional guidance

for designers, tabulated for each of the pressure zones.


Transitional Period Commenced


Provision Changes

AS 1926 Swimming pool safety

Part 1 Safety barriers for swimming pools 2012

G1.1 and 3.9.3.0

(b) A child-resistant doorset must not be used in a barrier

for an outdoor swimming pool.

(c) A side hung door forming part of the barrier for an indoor

swimming pool must swing away from the pool area

Vic Variation for the use of AS 1926 Parts 1 1993 & Part 2 1995

to a Childrens service has been retained

AS 1926.1-2012 Swimming pool safety Safety barriers for swimming pools

Provides clarification on a range of matters related to swimming pool

fencing, particularly related to the Non-climbable zone (NCZ)

provisions

Provisions for glass used in barriers included for the first time (in

accordance with the provisions of AS 1288)

Incorporates for the first time provisions related to the design,

construction and operation of gate units installed as part of a barrier

(to supersede AS 2820-1993)

Provides updated requirements for loading and strength and rigidity

of barriers to assist manufacturers in designing and testing products

- Improved diagrams for clarity and ease of use and interpretation

Referenced Documents Provision Changes

AS/NZS 4505 Garage doors and other large access doors

B1.4 and 3.11.6

Applies to openings not more than 3 m in height in

external walls in wind region C or D


Provision Changes

AS/NZS 4654 Waterproofing membranes for external above ground use

Part 1 Materials Part 2 Design and Installation

F1.4 and 3.8.1.3

Waterproofing membranes for external above ground use

must comply with AS/NZS 4654 Parts 1 and 2


Provision Changes

Spec JV Clause 2

(iii) The internal heat gains in a building (A) From the occupants

(aa) 75 W per person sensible heat gain and 55 W

per person latent heat gain; or

(bb) Metabolic rate from Table 45 AIRAH-DA09; or

(cc) Heat emission rate from Table 6.3 CIBSE Guide A

New Provisions for Buildings in

Flood Hazard Areas

Courtesy of AusGrid

New and Amended BCA Definitions Relating to Flood Hazard Areas

Appropriate authority Defined flood event (DFE) Flood hazard area Defined flood level (DFL) Flood hazard level (FHL) Freeboard

Possible structural damage to a traditional design

Courtesy of AusGrid

New and Amended BCA Definitions Relating to Flood Hazard Areas

Appropriate authority means the relevant authority with the

statutory responsibility to determine the particular matter

Defined flood event (DFE) means the flood event selected for the

management of flood hazard for the location of specific

development as determined by the appropriate authority.

Flood hazard area means the site (whether or not mapped) encompassing

land lower than the flood hazard level which has been determined by the

appropriate authority.

Definition Defined Flood Level

Defined flood level (DFL) means the flood level associated with a

defined flood event relative to a specified datum

Definition Freeboard

Freeboard means the height above the defined flood level as determined by the

appropriate authority, used to compensate for effects such as wave action and

localised hydraulic behaviour

Flood Hazard Areas Performance Requirements

BP1.4 and P2.1.2:

A building in a flood hazard area, must be designed and

constructed to Resist flotation or collapse resulting from the action of

Hydrostatic; Hydrodynamic; Erosion and scour; Wind and other actions.

Flood Hazard Areas DtS

B1.6 and 3.10.3

The Deemed-to-Satisfy Provisions for buildings of Class 1, 2, 3, 9a,

9c or Class 4 parts of a building in a flood hazard area:

Must comply with the ABCB Standard for Construction of Buildings

in Flood Hazard Areas

ABCB Standard for Construction of Buildings in Flood Hazard Areas


Courtesy of AusGrid

Performance in BCA; DtS in Standard

Flood Hazard Area is an area subject to flooding during the

Defined Flood Event (DFE) as determined by the Appropriate

Authority

Standard does not override planning controls


Does not apply to areas subject to landslide, storm surge, coastal wave action


Standard limited to a maximum flow velocity of 1.5 m/s

Flood Hazard Areas Victorian requirements

Possibility of Provisions being deferred

May Require Regulation changes

To define Flood Hazard Level

Flood Hazard Areas = Land liable to flooding.

Determination of Velocities

Consultation with Appropriate Authority

Design Requirements for Buildings

Structural adequacy

Floor height requirement above the

Flood Hazard Level (FHL)

Enclosures below the FHL

Geotechnical considerations

ABCBs Non-Mandatory Information Handbook

Lift Provisions

Lift provisions relocated from AS 1735 Parts Performance Requirement to allow the use of lifts

for egress

Lift Related Changes Definitions

Electric passenger lift

Electrohydraulic passenger lift

Stairway platform lift

Inclined lift

Low-rise platform lift

Low-rise, low speed constant

pressure lift

Small-sized, low-speed automatic

lift

Part 2

Part 3

Part 7

Part 8

Part 14

Part 15

Part 16

Lift Related Changes Relocation

B1.4(m)

Lift shaft enclosure and safety

protection

Glazing thickness

Lift Related Changes Relocation E3.7 Fire service controls

Lifts serving any storey above 12 m must be provided with:

A fire control switch, complying with E3.9 for

A group of lifts; or

A single lift not in a group that serves the storey; and

A lift car fire service drive control switch, complying with E3.10


E3.9

Fire Service Recall Control

Switch

E3.10

Lift Car Fire Service Drive

Control Switch

Located at a nominated

landing by appropriate

authority

Outside of the lift car

Located within the lift car

Operates the lift


E3.9

Fire Service Recall Control

Switch

E3.10

Lift Car Fire Service Drive

Control Switch

Lift Related Changes Egress

Consideration of egress for all

occupants

To achieve reasonable

evacuation times alternative

strategies are being used

Some designs have been

approved using lifts for egress

Lift Related Changes Egress DP7

Where a lift is intended to be used in addition to the required

exits to assist occupants to evacuate a building safely, the

type, number, location and fire-isolation appropriate to

Travel distances

Characteristics of occupants

Use of the building

Number of storeys connected

Fire safety systems

Characteristics of the lift

Reliability of the lift

Emergency procedures

Lift Related Changes Egress DP7

DP7 is only mandatory if lifts are part of an Alternative Solution

Where a lift is intended to be used.to evacuate

Does not replace required exit stairways

Used in addition to the required exits

Lift Related Changes Egress EP3

Lift Related Changes Performance

Egress

Inserted new Performance

Requirement, DP7

D2.15 Thresholds

D2.17 Handrails

D2.21 Operation of latch

D3.6 Signage

Egress D2.15

The threshold of a doorway must not incorporate a step or

rampunless

(c) in a building required to be accessiblethe doorway

(i) opens to a road or open space; and

(ii) is provided with a threshold ramp or step ramp

Egress D2.17

Handrails in a required exit serving an area required to be accessible, must be designed and constructed to

comply with clause 12 of AS 1428.1

Clause 12 of AS 1428.1 relates to design and construction requirements such as

Encroachments

Cross-section details

Edge details

Handrail heights

Clearances

End details

Egress D2.21

Doors must be readily openableby a single hand downward actionand if serving an area required to be accessible:

Prevent the hand of a person who cannot grip from slipping

from the handle

Have a clearance between the handle and door of between

35mm and 45mm

Egress D3.6

Braille and tactile signage complying with Specification

D3.6 must identify each door required by E4.5 to be

provided with an exit sign and state

Exit; and

Level followed by the floor level number

Exit

Level 1

Openable Windows D2.24 and 3.9.2.5

New provisions for protection of openable windows,

applies to:

Only Bedrooms in Class 1, 2, 3 and Class 4 Part

Class 9b early childhood centre


Current: 865 mm barrier for

openable window, when floor is 4 m

above surface beneath

New: Protection for openable

window, when floor is 2 m above

surface beneath in early childhood

centres and bedrooms of residential

buildings


Current: 865 mm barrier for

openable window, when floor is 4 m

above surface beneath

New: Protection is required for

window openings below 1.7 m from

floor level


A device to restrict the window

opening; or

A screen with secure fittings,

Not permit a 125 mm sphere to pass

through

Restrict a force of 250 N

Child resistant release mechanism if

screen or device is able to be removed


A device to restrict the window

opening; or



through


Child resistant release mechanism if

screen or device is able to be

removed

< 125 mm

A device to restrict the window opening; or



through


Child resistant release mechanism if screen

or device is able to be removed


< 125

mm

Energy Efficiency

Section J Application of Part

J1.1, J2.1, J3.1

Non-conditioned space removed from application

Envelope in broad terms refers to conditioned space or habitable rooms

Therefore non-conditioned spaces are excluded in the first instance

Defined Term Clarification Section J and Part 3.12

Defined term Solar Heat Gain Coefficient

(SHGC) changed to Total System SHGC

Defined term Total U-Value changed to

Total System U-Value

Ensures the whole system including glass

and frame are in the performance values

Concession for envelope walls Table J1.5(b)

Table J1.5(b) has been clarified

3 triggers for use of provision which

allows a concession to the Total R-Value

requirements:

- Ventilation

- Glazing

- Roof lights

Example of where provision

J1.5(b) could be applied

Fan Motor Power Part J5

Change to BCA definition of fan motor

power

Now includes motor input power

Changes to J5.2 including Table J5.2

Table J5.2 Maximum Fan Motor Power

Air-conditioning sensible heat

load

(W/m of the floor area of the

conditioned space)

Maximum fan motor power (W/m of the floor area of the

conditioned space)

For air-conditioning system

serving not more than 500m

For and air-conditioning

system serving more than

500m

Up to 100 4.1 5.3 6.4 8.3

101 to 150 7.3 9.5 10.4 13.5

151 to 200 10.5 13.7 14.1 18.3

201 to 300 17.1 22.2 21.5 28.0

301 to 400 23.6 30.7 28.4 37.0

Note: For more than 400W/m2 air-conditioning sensible heat load-

(a) in a building of not more than 500m2 floor area, use 0.097 W of fan motor power

for each watt of internal air-conditioning sensible heat load; and

(b) in a building of more than 500m2 floor area, use 0.1209 W of fan motor power for each watt

of internal air-conditioning sensible heat load.

Heating and Cooling Systems J5.4(b)(iii)

New Provision:

To allow the heating of a space via

electric heating if the capacity is not

more than 1.2 kW, in a Class 3 or 9c

building

Heating and Cooling Systems J5.4(b)(ii)(H)

The sub-clause has been relocated so that all forms of heating (A) to

(G) can be used in combination

Slab-on-ground Inclusion Spec J1.6

Figure 2 TYPICAL R-VALUES FOR FLOOR CONSTRUCTION

(for a floor without a floor heating or cooling system)

Artificial Lighting 3.12.5.5

Lamp Power Density = amount of energy used in the space by the

lamps alone, divided by the area of the space

Illumination Power Density = total amount of power that will be

consumed by the lighting systems in a space, divided by the area of

the space

Illumination Power Density 3.12.5.5(b)

1. W/m2 allowance for space =

2. Adjustment factor from Table 3.12.5.3 for device used =

3. 5 0.85 = 5.88 new W/m allowance for that space

Stormwater

Stormwater - Definitions

Average Recurrence Interval:

Amended to include a 5 minute duration rainfall intensity.

Average recurrence interval applied to rainfall, means the average or expected

interval between exceedances for a 5 minute duration rainfall intensity

Surface Water:

Amended to remove reference to water flowing from a drain, stream,

river, lake, or sea.

Surface water means all naturally occurring water, other than sub-surface water,

which results from rainfall on or around the site or water flowing onto the site

Stormwater FP1.3 and P2.2.1

A drainage system for the disposal of surface water resulting from a

storm having an average recurrence interval of

(i) 20 years must

(A) convey surface water to an appropriate outfall; and

(B) avoid surface water damaging the building; and

(ii) 100 years must avoid the entry of water into a building

Waterproofing and Water Resistance

Fire Compartments C2.5

External Columns Spec C1.1

Column B

Wash basin F2.3

F2.3 Facilities in Class 3 to 9 Buildings

(a) Sanitary facilities must be provided for Class

3, 5, 6, 7, 8 or 9 buildings in accordance with

Table F2.3.

(b) If not more than 10 people are employed, a

unisex facility may be provided instead of

separate facilities for each sex.

(c).

(i) Not less than one washbasin must be provided

where closet pans or urinals are provided

Corrosion Controls 3.4.2.2(a)(ii)

Additional option for corrosion

protection included for steel framing

outside the building envelope

AM150 (150 grams of

aluminium/zinc/magnesium per

square metre)

Defined Term Sole-Occupancy Units

Proposed Changes for BCA 2014 Slip Resistance

Proposed changes are deferred for BCA 2014 consideration:

Due to the revision of the standard currently underway

To give industry time to prepare

Proposal to include:

Referencing AS/NZS 4586 (2013) for testing

Quantified non-slip, non-skid and slip-resistant to slip resistance

classification

REGULATORY AND OTHER MATTERS

VAGO OMBUDSMANS REPORTS

PROPOSED CHANGES ORGANISATIONAL

VICTORIAN BUILDING AUTHORITY

LEGISLATION CHANGES REQUIRED;

ESTABLISH A BOARD;

APPOINT A CEO;

APPOINT DIRECTORS AND OTHER STAFF IN THE NEW

STRUCTURE;

TIMING, LIKELY TO BE BY MID YEAR.

NEW AUDIT PROGRAM

OBJECTIVES OF THE NEW AUDIT PROGRAM

STATE-WIDE AND RISK BASED AUDITS

PHASE ONE AUDIT 1000 BUILDING PERMITS

COMPREHENSIVE CHECKLISTS

PROPOSED REGULATION CHANGES

Reg 415

Walls on boundaries

Height

Setback from boundary

Changes to solar hot water requirements

under Victorias 6 Star Building Standard

Current 6 Star Building Standard

New class 1 buildings are required to meet a minimum

of 6 Star thermal performance for the building fabric and

install either a solar water heater system (SWH) or

rainwater tank connected to all sanitary flushing

systems.

SWH and/or rainwater tank must be installed in

accordance with the Plumbing Regulations 2008.

Plumbing Amendment Regulations 2012

Plumbing Regulations 2008 recently amended:

updated reference to "AS/NZS 4234: 2008 Heated

water systems - Calculation of energy consumption,

and

changes to other SWH requirements

Due to commence on 19 April 2013

Changes to solar water heater requirements

Solar collector orientation

30 degrees east and

60 degrees west of

magnetic north

Changes to solar water heater requirements for new class 1 buildings

Modified solar collector inclination requirements for

SWH:

Inclination of 35

20 to Horizontal

bca 2013 slide show vba august 2013

Documents

new asnzs

referenced docs

indoor swimming pool

swimming pool fencing

outdoor swimming pool

swimming pools

wind maps

wind loads