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R B C O N S U L T I N G GROUP B U I L D I N G S U R V E Y O R S & CERTIFIERS

South West Rocks Sports Centre 18/240

13 December 2018

The General Manager Kernpsey Shire Council 22 Tozer Street WEST KEMPSEY NSW 2440

Att: Shane Reinhold

Dear Sir,

RE: South West Rocks Sports Centre: Sportmans Way, South West Rocks.

NATIONAL CONSTRUCTION CODE OF AUSTRALIA REPORT

CRITERIA:

Drawings Hadlow Design Services: 24 October 2018; Drawings: A101 —A108

Class 9b

Rise in storeys 4 Type of Construction Type A Construction.

Importance Level NCC Table B1 .2a 3

Effective Height 12.84 metres

REPORT STATEMENT:

This Report is prepared on an 'exception-only basis' in that only those matters under the NCC that need to be modified or need to be determined are reported on. Matters not reported are deemed to either comply or are not applicable.

Schedule B is attached outlining all the applicable matters which have been considered under the NCC.

A l ACCREDITED BUILDING CERTIFIER - NATIONAL CONSTRUCTION CODE OF AUSTRALIA CONSULTANTS

RB Consulting Group Pty Ltd: Suite 6, 6 Elbow Street, PO Box 59, Coffs Harbour 2450 ACN 128 688 666 ABN 12 128 688 666

Ph: 02 6651 9455 Email: infogrbcg.com.au Web: www.rbcg.com.au

RBCG

MATTERS REQUIRING MODIFICATION:

Clarification is required for the distances between seating, note in particular NCC Clause H1.4, as follows:

H1.4 Seating area

In a seating area— (a) the gradient of the floor surface must not be steeper than 1 in 8, or the floor must be stepped so that;

(i) a line joining the nosings of consecutive steps does not exceed an angle of 300 to the horizontal; and (ii) the height of each step in the stepped floor is not more than 600 mm; and (iii) the height of any opening in such a step is not more than 125 mm; and

(b) if an aisle divides the stepped floor and the difference in level between any 2 consecutive steps;

(i) exceeds 230 mm but not 400 mm — an intermediate step must be provided in the aisle; and (ii) exceeds 400 mm —2 equally spaced intermediate steps must be provided in the aisle; and (iii) the going of intermediate steps must be not less than 270 mm and such as to provide as nearly as practicable equal treads throughout the length of the aisle; and

(c) the clearance between rows of fixed seats used for viewing performing arts, sport or recreational activities must be not less than—

(i) 300 mm if the distance to an aisle is not more than 3.5 m; or (ii) 500 mm if the distance to an aisle is more than 3.5 m.

The stairway between Spectator Level 01-12 and Media Level is less than 1 metre between handrails. The Stairway is to be a minimum of 1 metre in width measured clear of the handrails. Handrails are to be provided to both sides of the stairway.

The width of the stairway from the Concourse Level to the Mezzanine is to have a minimum width of 1 metre measured clear of the handrail. A handrail is required to one side of the stairway.

It is noted that the underside of the stairway at Spectator Level is to be used for the storage of chairs. The drawings also indicate that the underside of the stairways at Concourse Level may be used as storage. NCC Clause 02.8 requires the space below a non fire-isolated stairway used for storage to be enclosed in construction having an FRL of 60/60/60, with the access doorway being a - /60/30 self-closing fire door.

Note: It is riot known whether the Sports Centre is located in a flood zone or in bushfire prone land. and both these have been excluded from this Report.

RBCG

MATTERS TO BE DETERMINED:

Structure:

Structural engineer's details required for all structural work and are to be prepared in accordance with NCC Volume 1 Section B and the respective referenced Australian Standards including:

Structural design actions: AS 1170.0, 1 & 2 — 2002 & 2011; Concrete construction: AS 3600 — 2009; Steel construction: AS 4100 — 1998 and AS/NZS 4600 — 2005; Masonry: AS 3700 — 2011; and Piling: AS 2159 —2009.

Fire Resistance:

Fire Resistance Levels: The building is to be built in Type A Construction, note Schedule A (NCC Specification C1.1 Clause 3 and Table 3).

Note the following brief:

• All loadbearing building elements are required to have an FRL, including the steel columns in the external walls of the Media Level.

• External walls are to be fire rated to both sides.

• Any loadbearing internal walls are to be concrete or masonry.

• All floors are to have an FRL.

• Columns and loadbearing walls, if non-combustible, supporting only the roof do not need an FRL.

• The main steel columns supporting the roof do not need an FRL.

• The roof is not required to have an FRL.

Fire Hazard Properties: Floor coverings, such as carpet or vinyl, are to have a critical radiant flux (in kW/m2) of not less than 2.2 and a maximum smoke development rate of 750 percent-minutes.

Internal wall linings are to comply with Clause 4 of NCC Specification C1.10.

Electricity supply system: If any of the following are to be located within the building, they are to be fire separated (120/120/120 for loadbearing walls and - /120/120 for non-loadbearing walls) from the remainder of the building;

Electricity substation; and

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Main switchboard which sustains emergency equipment, such as fire hydrant booster pumps.

Doors are to be self-closing fire doors with a Fire Resistance Level of - /120/30.

Lift shaft to be fire-isolated: The lift shaft is to have an FRL of 120/120/120 if loadbearing or, if non-loadbearing, -/120/120.

Openings in fire-isolated lift shafts: The entrance doorway to the lift shaft must be protected by —/60/— fire doors that comply w i t AS 1735.11 and are set to remain closed except when discharging or receiving passengers or goods.

Lift indicator panels: A lift call panel, indicator panel or other panel in the wall of a fire-isolated lift shaft must be backed by construction having an FRL of not less than - /60/60 if i: exceeds 35 0002 mm in area.

Openings in floors and ceilings for services: All services penetrating the floor/ceilings are to be in shafts complying with NCC Specification 01.1 (FRL: loadbearing 90/90/90 and non-loadbearing - /90/90, with access openings therein to have a FRL of - /60/30).

Openings in shafts: An opening in a wall providing access to a ventilating, pipe, garbage or other service shaft must be protected by:

(a) if it is in a sanitary compartment — a door or panel which, together with its frame, is non-combustible or has an FRL of not less than —/30/30; or (b) 3 self-closing —/60/30 fire door or hopper; or (c) an access panel having an FRL of not less than —/60/30; or (d) if the shaft is a garbage shaft — a door or hopper of non-combustible construction.

Openings in floors and ceilings for services: Services passing through fire rated ceilings and the floor are to be protected by a shaft that will not reduce the fire performance of the building elements it penetrates, or in accordance with NCC Specification 03.15.

Access and Egress:

Note: The Media Level is not to accommodate more than 50 persons.

Dimensions of exits: In a required exit or path of travel to an exit the unobstructed height throughout must be not less than 2 metres except doorways which may be reduced to 1 980 mm.

RBCG

Installations in exits and paths of travel to exits: Any internal electrical distribution and communications boards which are in a path of travel to any of the nominated exits must be enclosed by non-combustible construction or a fire-protective covering with doorways or openings suitably sealed against smoke spreading from the enclosure.

Stairways: Stairways are to be in accordance with NCC Clauses D2.13, D2.14 and D2.15, and Clause 11 of AS 1428.1 —2009.

Barriers: Barriers (balustrades) to the stairways, concourse, seating areas balconies and the like are to be in accordance with NCC Clause D2.16. Handrails: Handrails to all stairways, except to the Mezzanine Level, are to be located on both sides and are to be in accordance with Clause 12 of AS 1428.1 — 2009.

Operation of latch: All doors exit doors and doors in a path of travel to an exit must be readily openable without a key from the side that faces the person seeking egress, by a single hand downward or pushing action on a single device which is located between 900 mm and 1.1 m from the floor.

Door controls are also required to be in accordance with Clause 13.5 of AS 1428.1 — 2009.

Access for people with disabilities:

Note: A 1:20 gradient to an accessway is defined as a walkway. Any accessway with a gradient greater than 1:20 is a ramp. Ramps generally cannot have a gradient exceeding 1:14; and

Access for people with disabilities is considered not to be necessary to the Mezzanine Level.

Access for people with disabilities is to comply with AS 1428.1 —2009 including, but not limited to, the following:

Visual indicators on glazing shall comply with clause 6.6. Note in particular the glazing to the Concourse Level;

All ground and floor surfaces shall have a slip-resistant surface in accordance with Clause 7 of AS 1428.1 —2009;

Tactile ground surface indicators are to be Type B and in accordance with AS 1428.4.1 —2009. Indicators are to be set back 300mm from the first step;

Any door thresholds shall be no greater than 35 mm, and a threshold ramp shall have a maximum gradient of 1:8;