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What is the maximum aspect ratio of the L shaped concrete slabs or bays of concrete slabs? | 5 to 1 | The aspect ratio of the concrete slabs or bays of concrete slabs, such as in the case of L, T or boomerang concrete slab shapes, shall not exceed 5 to 1 (length to width). | Answer in 7.5.13.2, B1/AS1 page 23D |
What is the earthquake zone factor for the Canteburry Earthquake region? | > 0.6 | The earthquake zone factor > 0.6 shall apply to the Canterbury earthquake region | Answer in 4.1.2 B1/AS1 NZS 4299, Clause 2.3 Earthquake zones |
What is the maximum height of a chimney when measured from the top of the chimney foundation slab to the top of the chimney stack? | 9 m | The height of any chimney measured from the top of the chimney foundation slab to the top of the chimney stack shall not exceed 9 m. Chimneys shall not cantilever more than 2.4 m above the fixing at roof level (refer Paragraph 1.7). | Answer in 1.1.2 Height of Acceptable Solution 3.2.1 B1/AS3 Small Chimneys |
Given a column is partly embedded in firm soil, what is the minimum depth of the end restraint? | 6 times the nominal pile width | For a column partly embedded in the ground, the effective length is dependent upon the position of end restraint, which in turn is dependent upon the nature of the ground. End restraint shall be assumed at a depth of no less than: a) 3 times the nominal pile width in very stiff soil. (For clays an undrained shear strength greater than or equal to 100 kPa, and for sands a relative density greater than or equal to 50% shall be regarded as very stiff soil.) b) 6 times the nominal pile width in firm soil. (For clays an undrained shear strength between 50 and 100 kPa, and for sands a relative density between 30 and 50% shall be regarded as stiff soil.) c) 9 times the nominal pile width in other soil conditions. | Answer in 4.2.2 of foundations B1/VM4 (page 61) |
What is the minimum chimney stack wall thickness, given the chimney is brick double skin? | 245 mm | Chimney wall thicknesses shall be no less than: a) Brick– single skin (see Figure 2): 155 mm – double skin (see Figure 3): 245 mm b) Concrete: 170 mm c) Precast pumice concrete: 85 mm. These thicknesses apply to the chimney stack, gather and chimney base. | Answer in 1.2.1 of Acceptable Solution B1/AS3 Small Chimneys (Page 37) |
What is the maximum weight of a solid fuel burning domestic appliance which can be supported by 65 mm thick hearth slab? | 130 kg | Solid fuel burning domestic appliances weighing no more than 130 kg shall be supported on a 65 mm thick hearth slab that is: a) Reinforced with 665 mesh, or D10 rods at 300 mm centres each way, placed centrally in the slab thickness, b) Supported on a timber or concrete floor, or integral with a concrete floor. (The floor supporting the hearth slab shall comply with NZS 3604 or NZS 4229 as appropriate), and c) Comprised of ordinary grade concrete complying with the relevant clauses of NZS 3109. | Answer in 2.2.1 B1/AS3 (page 49) |
Given a hearth slab is on a timber floor, what is the minimum shank diameter of a screw that holds the supporting members? | 4.88 mm | Hearth slabs on a timber floor shall be held in position by supporting members on all four sides of the hearth. These members shall each be held by four screws with a minimum shank diameter of 4.88 mm that penetrate the floor framing by 50 mm. | Answer in 2.2.2 B1/AS3 (page 49) |
Given the depth from the ground surface to the underside of the foundation is 7 times the width of the foundation, what is the foundation's category? | deep | Foundations may be shallow or deep. A shallow foundation is one in which the depth from the ground surface to the underside of the foundation is less than five times the width of the foundation. All other foundations are considered to be deep. | Answer in 2.0.4 B1/VM4 (page 51) |
What stresses should pre cast concrete piles withstand without damage or significant cracking? | stresses arising from manufacture, handling and transportation, in addition to those arising from driving and imposed loadings. | Precast concrete piles, including prestressed piles, shall withstand without damage or significant cracking, the stresses arising from manufacture, handling and transportation, in addition to those arising from driving and imposed loadings. | Answer in 5.1.1 B1/VM4 (page 66) |
What is the minimum thickness of belled bases made of cast-in-situ concrete piles? | 100 mm | Belled bases of cast-in-situ concrete piles shall be no less than 100 mm thick at the edge of the required base and, unless the bell is reinforced, the conical surfaces shall slope at an angle from the horizontal of no less than 60°. | Answer in 5.1.2 B1/VM4 (page 67) |
Given steel piles incased in pre-stressed concrete, what is the minimum cover to the steel for allowance of corrosion to not be required? | 30 mm | Allowance for corrosion loss need not be made for steel encased in concrete provided cover to the steel is no less than: a) 30 mm for prestressed concrete, b) 50 mm for precast concrete, c) 75 mm for cast-in-situ concrete. | Answer in 5.2.2 B1/VM4 (page 67) |
What are the building code clauses that need to be complied with to verifiy the duribility of a internal ceiling (building element)? | NZBC B2.3.1 and B2.3.2 | Verification that the durability of a building element complies with the NZBC B2.3.1 and B2.3.2 will be by proof of performance and shall take into account the expected in-service exposure conditions by one or more of the following: a) In-service history, b) Laboratory testing, c) Comparable performance of similar building elements. | Answer in 1.0.1 B2/VM1 (page 11) |
What is the required durability of a building element that is difficult to access or replace? | 50 year | Difficult to access or replace – applies to building elements where access or replacement involves significant removal or alteration of other building elements. Examples are works involving the removal of masonry or concrete construction, or structural elements or repair of buried tanking membranes. A 50 year durability is required. | A 50 year durability is required. Answer in 1.2.1a B2/AS1 (page 13) |
What is the required durability for a lining, trim, light fitting, hot water cylinder element or door hardware? | 5 year | Easy to access and replace – applies to building elements where access or replacement involves little alteration or removal of other building elements. Examples are linings, trim, light fittings, hotwater cylinder elements and door hardware, or where specific provision for removal has been made. A 5 year durability is required. | A 5 year durability is required. Answer in 1.2.1d B2/AS1 (page 13) |
What does the extent and nature of maintenance for a building element depend on? | the material, or system, its geographical location and position within the building, and can involve the replacement of components subject to accelerated wear. | Normal maintenance is that work generally recognised as necessary to achieve the expected durability for a given building element. The extent and nature of that maintenance will depend on the material, or system, its geographical location and position within the building, and can involve the replacement of components subject to accelerated wear. | Answer in 2.1.1 B2/AS1 (page 14) |
What is the prescribed method of determining who is responsible for determining normal maintenance requirements of a building element? | the person specifying the building element | It is the responsibility of the person specifying the building element to determine normal maintenance requirements. These may be based on the manufacturer’s recommendations and may also include periodic inspections of elements not readily observable without a specific effort (e.g. access to roof or subfloor spaces). | Answer in 2.1.2 B2/AS1 (page 14) |
Given a building element is required to have a compliance schedule, what is the required durability? | the life of the building | Scheduled maintenance comprises the inspection, maintenance and reporting procedures for building elements required to have a compliance schedule in terms of section 100 of the Building Act. By those procedures the building elements concerned are effectively deemed to have a durability of the life of the building because they are required to perform as designed at all times | Answer in 2.2.1 B2/AS1 (page 14) |
What is the minimum in-service durability of H3.1 timber? | 15 years | Timber used for structural purposes is required to be durable in-service for the life of the building, being not less than 50 years unless the building has a specified intended life. This is applicable to hazard classes H1.2, H3.2, H4, H5, and H6. Structural timber refers to timber that has been graded to characteristic strength and stiffness properties. The minimum requirement for a H1.2 treatment for timber framing is to provide protection in-service but the preservative treatment is not designed for extended exposure to elevated moisture content. Timber used for non-structural purposes, such as H1.1 and H3.1 is required to be durable in-service for a minimum of 5 years and 15 years respectively. | Answer in 3.2.3.1 - 3.1.1 B2/AS1 (page 15E) |
Given untreated solid Douglas fir framing is used for roof members protected from the weather for a single storey house, what is the minimum required eave width that the building must have? | 450 mm | Preservative-free (untreated) solid Douglas fir framing may be used for roof members protected from the weather, floor members protected from the weather and not exposed to ground atmosphere, and for internal and external wall framing protected from the weather provided that the building meets all of the following requirements: a) is a stand alone, single household unit of no more than two storeys (as defined in NZS 3604) and designed and constructed to NZS 3604, and b) is situated in wind zones no greater than High as defined in NZS 3604, and c) has an envelope complexity of no greater than medium risk and a deck design no greater than low risk as defined by the risk matrix in E2/AS1, and d) has drained and vented cavities complying with E2/AS1 behind all claddings, and e) uses roof and wall cladding systems and details conforming with Acceptable Solution E2/AS1, and f) has a risk matrix score of no more than 6 on any external wall face as defined in E2/AS1, and g) has a simple pitched roof incorporating hips, valleys, gables, or mono pitches, all draining directly to external gutters; but excluding internal or secret gutters, concealed gutters behind fascias, or any roof element finishing within the boundaries formed by exterior walls (eg, the lower ends of aprons, chimneys, dormers, clerestories, box windows, etc), and h) has a roof slope of not less than 10°, and i) if it has a skillion roof, then the roofing material shall be corrugated iron or concrete, metal or clay tiles to ensure adequate ventilation, and j) has eaves 450 mm wide or greater for single storey houses, and eaves 600 mm or greater for two storey houses. | Answer in 3.2.2.2 B2/AS1 (page 15C) |
What is the maximum cross fall steepness of the surface of any access route? | 1:50 | Where the surface of an access route or an accessible route is subject to wetting, the surface shall have a cross fall of no less than 1 in 100 unless it is constructed to drain water, such as timber decking or support on tiles with 5 mm gaps. The surface of any access route (including an accessible route) shall not have a cross fall steeper than 1:50. Additionally, the vertical variation between adjoining tiles or other flooring materials shall not be more than 3 mm for square edges or 5 mm for bevelled edges. | Answer in 1.2.2 D1/AS1 Crossfall (page 17) |
What is the maximum length a threshold weather stop can project above the threshold finished surface? | 20 mm | Threshold weather stops projecting no more than 20 mm above the threshold finished surface are acceptable. | Answer in 1.3.2 D1/AS1 (page 17) |
Given a minor projection is more than 1600mm above floor level, what is the maximum length it can project into the access route? | 200 mm | A minor projection is permitted within the required clear width of an access route if it is designed to minimise the risk of injury or impact, and the projection is located: a) More than 1600 mm above floor level and projects less than 200 mm into the access route (Figure 4), b) Within the height 800 mm to 1600 mm above floor level and projects less than 60 mm into the access route, (Figure 4), c) Less than 800 mm above floor level and projects less than 100 mm into the access route (Figure 4). | Answer in 1.5.1 D1/AS1 (page 18) |
What is the maximum length a handrail can project into the width of an access route to be considered a minor projection? | 100 mm | Handrails may be considered a minor projection if they project no more than: a) 100 mm into the access route (see Figure 4), or b) In the case of a centre handrail, 300 mm into a landing (see Figure 25). | Answer in 1.5.2 D1/AS1(page 19) |
Given a level access route is expected to remain dry under normal use, what is the minimum friction coefficient to be used for walking surface materials? | 0.40 | For level access routes expected to remain dry under normal use, a co-efficient of friction not less than 0.40 for walking surface materials from the friction test method of AS 4586 Appendix B is acceptable. Alternatively, the materials specified in Table 2 as ‘acceptable dry slip’ may be used without testing. | Answer in 2.1.3 D1/AS1 (page 21) |
What is the minimum clear width of an accessible route? | 1200 mm | The clear width of an accessible route shall be no less than 1200 mm. | Answer in 2.2.1 D1/AS1 (page 25) |
What is the minimum height above ground level of fixed ladders for protection from falling to be required? | 6.0 m | People shall be protected from falling from all fixed ladders which rise more than 6.0 m above the ground level or rise from a landing or platform. An acceptable solution for safety hoops and longitudinal straps shall have: a) Hoops and straps fabricated from 50 mm x 8 mm grade 250 steel, b) Hoops dimensioned as shown in Figure 21, and spaced at no more than 1000 mm intervals, c) The highest hoop level with the top of the barrier on the platform being accessed, and d) The lowest hoop 2.5 m above the ground or platform. | Answer in 5.2.1 D1/AS1 (page 34) |
What is the minimum clear opening width of accessible doors? | 760 mm | Accessible doors shall have at least 760 mm clear opening. | Answer in 7.0.3 D1/AS1 (page 43) |
What standard are frameless glass doors required to comply with? | NZBC F2 | Frameless glass doors shall comply with NZBC F2. | Answer in 7.0.7 D1/AS1 (page 43) |
What is the pressribed method of determining the number of wheelchair spaces in an entertainment area? | 2 for up to 250 seats provided, plus 1 for every additional 250 seats. | The number of spaces in rooms and areas used for public meetings, entertainment, and assembly, shall be provided on the scale of 2 for up to 250 seats provided, plus 1 for every additional 250 seats. | Answer in 8.1.1 D1/AS1 (page 43) |
Given an accessible accomodation unit has 2 bedrooms, a sitting and a dining area, what is the minimum size of wheelchair turning circle that they have to accomodate? | 1500 mm diameter | Accessible accommodation units shall have toilet and bathroom facilities complying with G1/AS1 and have bedrooms, sitting and dining areas with sufficient clear floor space to provide a 1500 mm diameter turning circle for a wheelchair user. Accessible kitchens or accessible tea and coffee making facilities shall be provided, in line with the facilities provided in the other units of the building or complex. | Answer in 9.2.1 D1/AS1 (page 45) |
What is the prescribed method of determining the time of concentration for the catchment Tc (minutes)? | te + tf | The time of concentration used to determine rainfall intensity is the time taken for surface water run-off from the furthest point (in time) of the catchment to reach the design point. Flow time calculations shall take account of catchment run-off coefficients and slopes. Time of concentration for the catchment tc (minutes) shall be calculated from the formula: tc = te + tf but shall be no less than 10 minutes. | Answer in 2.3.1 E1/VM1 (page 13) |
What it the minimum internal diameter of a surface water drain to avoid blockages? | 85 mm | To avoid blockages, surface water drains shall have an internal diameter of no less than 85 mm. | Answer in 3.1.1 E1/VM1 (page 16) |
Given a freeboard extends from the building directly to a car park, what is the freeboard length where surface water has a depth of 125mm? | 500 mm | The level of the floor shall be set at the height of the secondary flow plus an allowance for freeboard. The freeboard shall be:– 500 mm where surface water has a depth of 100 mm or more and extends from the building directly to a road or car park, other than a car park for a single dwelling. – 150 mm for all other cases. | Answer in 4.3.1 E1/VM1 (page 27) |
What is the minimum flow velocity of a drain when slumps are incorporated? | 0.6 m/s | A drain, shall have a minimum flow velocity of 0.6 m/s when sumps are incorporated and 0.9 m/s when no sumps are used. | Answer in 6.0.1 E1/VM1 (page 27) |
What is the mimimum thickness of the filter cloth in a soak pit? | 0.45 mm | The soak pit shall comprise either a rock filled hole or a lined chamber. Both of these options shall be enclosed in filter cloth complying with AS 3706.1. The filter cloth shall have a mass per unit area of 140 grams/m2 and a minimum thickness of 0.45 mm. | Answer in 9.0.4 E1/VM1 (page 30) |
What is the maximum angle of direction of flows of two drains intersecting? | 60° | Where two drains intersect, the directions of flow as shown in Figure 5 shall be at an angle of 60° or less. | Answer in 3.3.2 E1/AS1 (page 34) |
What is the prescribed method of determining how a drain laid under a building shall be run? | straight line from one side to the other | Any drain laid under a building shall be run in a straight line from one side to the other. | Answer in 3.7.6 E1/AS1 (page 38) |
What is the maximum thickness of a layer of granular bedding? | 100 mm loose thickness | a) Granular bedding and selected fill shall be placed in layers of no greater than 100 mm loose thickness and compacted. b) Up to 300 mm above the pipe, compaction shall be by tamping by hand using a rod with a pad foot (having an area of 75 ± 25 mm by 75 ± 25 mm) over the entire surface of each layer to produce a compact layer without obvious voids. c) More than 300 mm above the pipe, compaction shall be by at least four passes of a mechanical tamping foot compactor (whacker type) with a minimum weight of 75 kg. | Answer in 3.9.6a E1/AS1 (page 41) |
What is the minimum cross sectional area of a single story bulding gutter? | 4000 mm2 | In no case shall the cross-sectional area of any gutter be less than 4000 mm2. | Answer in 5.1.4 E1/AS1 (page 44) |
What is the presribed method of calculating the minimum cross sectional area of a outlet? | no less than the cross-sectional area of the downpipes serving the gutter. | All internal gutters shall be fitted with overflow outlets which drain to the exterior of the building. The top of the outlet shall be set at least 50 mm below the top of the gutter. The cross-sectional area of the outlet shall be no less than the cross-sectional area of the downpipes serving the gutter. | Answer in 5.5.1 E1/AS1 (page 44) |
Given a building is not a house, what is the maximum area of occupied space the building can have for the document to apply to it? | 300 m2 | This document applies to: a) housing; and b) other buildings with an area of occupied space no greater than 300 m2. | Answer in 1.1.1.1b H1/AS1 (page 6) |
What clause does compliance with Building Code clause H1.3.1(a) satsify? | H1.3.2E | Compliance with Building Code clause H1.3.1(a) (adequate thermal resistance) satisfies clause H1.3.2E | Answer in 1.1.3.3 H1/AS1 (page 6) |
What is the prescribed method of calculating the area of a housing building? | floor area | For housing, use the floor area of the building. | Answer in 1.2.2.1 H1/AS1 (page 7) |
What standard sections provide acceptable methods for installing bulk thermal insulation in steel-framed residential buildings? | NZS 4246 sections 5, 6, 7 and 10 | Insulation materials shall be installed in a way that achieves the intended thermal performance in buildings without compromising the durability and safety of insulation or building elements and the health and safety of installers and building occupants. NZS 4246 sections 5, 6, 7 and 10 provide acceptable methods for installing bulk thermal insulation in light-timber and steel-framed residential buildings. | Answer in 2.1.1.5 H1/AS1 (page 8) |
Given a building consent application is submitted before 2 November 2023, what is the minimum construction R-value for doors of a building in climate zone 1? | 0.37 m2·K/W | For building consent applications submitted before 2 November 2023, the minimum construction R-values for windows and doors in climate zones 1 and 2 are permitted to be reduced to R0.37 m2·K/W. | Answer in 2.1.2.3 H1/AS1 (page 9) |
What is the prescribed method of determining the construction R-value for a roof, wall or floor that forms part of the building thermal envelope in the proposed building? | at least 50% of the construction R-value of the corresponding building element in the reference building equation | The construction R-value in the proposed building for roofs, walls, and floors, that form part of the building thermal envelope shall be at least 50% of the construction R-value of the corresponding building element in the reference building equation. | Answer in 2.1.3.8 H1/AS1 (page 13) |
Given a opaque building element that has a unknown construction R-value, what is the R-value that should be used in heat loss equation for the proposed building? | 0.18 m2·K/W | Where the construction R-value of a building element is not known, default construction R-values of 0.18 m2·K/W for an opaque building element and 0.15 m2·K/W for windows shall be used in the heat loss equation for the proposed building. | Answer in 2.1.3.9 H1/AS1 (page 13) |
What is the standard that should be used to verify thermal resistance (R-values) of insulation materials? | AS/NZS 4859.1. | The thermal resistance (R-values) of insulation materials may be verified by using AS/NZS 4859.1. | Answer in 2.1.4.2 H1/AS1 (page 13) |
Given a communal residential building, what are the air flow requirements of the doors and windows? | constructed in such a way that they are capable of being fixed in the closed position | Housing, communal residential, communal non-residential assembly care, and commercial buildings shall have windows, doors, vents or other building elements that allow significant movement of air, to be constructed in such a way that they are capable of being fixed in the closed position. | Answer in 2.2.1.1 H1/AS1 (page 14) |
Given the storage water heater has a capacity of 150L, what standard should it comply with? | NZS 4305 | Hot water systems for sanitary fixtures and sanitary appliances having a storage water heater capacity of up to 700 litres shall comply with NZS 4305. | Answer in 3.1.1.1 H1/AS1 (page 15) |
What is the prescribed occupant load (for the purposes of fire safety assessment) of a classroom space in an educational facility with a floor area of 125 sqm? | Occupant loads shall be calculated from the occupant densities given in Table 1.2 based on the floor area of the part of the building housing the activity | Occupant loads shall be calculated from the occupant densities given in Table 1.2 based on the floor area of the part of the building housing the activity. The occupant densities in Table 1.2 already allow for a proportion of the floor area appropriate to the activity being occupied by furniture, partitions, fixtures and associated equipment. If a building space has alternative activity uses, the activity having the greatest occupant density shall be used. If an activity is not specifically described in Table 1.2, the nearest reasonable description shall be used. | The answer is in Paragraph 1.4.2 (page 37). |
What is the prescribed method of determining the traverse length of a spiral stairs for the purposes of calculating the distance of escape in open paths (i.e. unprotected escape paths)? | twice the vertical height | Stairs and ladders occurring in an open path (see Figure 3.9) shall have their open path length taken as: a) For straight and curved stairs: the plan length measured on the stair centreline multiplied by 1.2, plus the plan length of each landing, b) For spiral stairs: twice the vertical height, and c) For ladders: three times the vertical height. | Answer in Paragraph 3.4.4(b) (page 59). |
What is the prescribed method of determining the fire resistance rating to be applied to shared escape routes for risk groups CA and WB on the same floor? | highest required FRR | If there is more than one risk group on one floor in the building, the highest required FRR shall be applied to common spaces and shared escape routes for that floor level. | Answer in 2.3.3 (page 47) |
Given an external wall is not permitted to be an unprotected area, what is the minimum height of a building for its external wall shall be rate for fire exposure from both sides equally? | 10 m | Areas of external wall not permitted to be unprotected areas shall be rated for fire exposure from both sides equally where: a) Walls are within 1 m of a relevant boundary, or b) The building height is more than 10 m, or c) The final exit is two or more floor levels below any risk group SM or SI occupancy. | Answer in 2.3.9 (b) (page 47). |
Given the allowable length of open pathss are not exceeded, what are the only things an escape route may comprise? | an open path and final exit | Provided the allowable lengths of open paths are not exceeded, an escape route may comprise only an open path and final exit. | Answer in 3.1.3 (page 50). |
How many escape routes should an occupied space in a building have? | two or more | Except where Paragraph 3.13 allows the use of single escape routes, every occupied space in a building shall be served by two or more escape routes | Answer in 3.2.1 (page 50). |
Given a space is unsprinklered, what is prescribed method of determining the permitted length of the open path? | reduced by 50% | The open path length permitted by Table 3.2 shall be reduced by 50% in any space where the following conditions apply: a) Both the floor and the ceiling slope in the same direction at an angle of more than 4° from the horizontal, and any escape route from the space is up the slope, and b) The clear ceiling height at any point is less than 4.0 m, and c) The occupant load in the space is more than 50, and d) The space is unsprinklered. | Answer in 3.4.5 (page 59). |
What is the minimum number of seats for loose seating to be interconnected to prevent overturning? | 250 | Where the number of seats exceed 250, loose seating shall be interconnected to prevent overturning. | Answer in 3.7.8 (page 68) |
Given one fire separation is a floor and the other is a wall, what is the prescribed method of calculating the FRR of the wall and floor junction? | FRR required for the higher rated element. | Where one fire separation is a wall and the other a floor, the wall/floor junction shall be constructed with the FRR required for the higher rated element. | Answer in 4.5.6 (page 92) |
Given the building is not sprinklered, what is the maximum height of a vertical safe path to not be required to be divided smoke separations and smoke control doors at the landing nearest mid-height? | 25 m | Vertical safe paths which exceed a height of 25 m shall be divided by smoke separations and smoke control doors at the landing nearest mid-height. This requirement does not apply if the building is sprinklered. | Answer in 4.9.6 (page 99) |
What is the minimum distancd a part of a wall can be from a boundry for a combination of small unprotected areas and fire resisting glazing to be used? | 1.0 m | If a wall or part of a wall is less than 1.0 m from the relevant boundary, a combination of small unprotected areas and fire resisting glazing is permitted as detailed in Paragraph 5.4. | Answer in 5.2.4 |
What is the prescibed method of demolitioning a building? | in a way that avoids the likelihood of premature collapse | The demolition of buildings shall be carried out in a way that avoids the likelihood of premature collapse. | Answer in B1.3.5 |
What is the minimum number of access routes required to enable to approach the building from the street boundary? | At least one | At least one access route shall have features to enable people with disabilities to: (a) approach the building from the street boundary or, where required to be provided, the building car park, (b) have access to the internal space served by the principal access, and (c) have access to and within those spaces where they may be expected to work or visit, or which contain facilities for personal hygiene as required by Clause G1 Personal hygiene. Performance D1.3.2 shall not apply to housing, outbuildings, backcountry huts, ancillary buildings, and to industrial buildings where no more than 10 people are employed. | Answer in D1.3.2 |
What is the yearly probablility of surface water from an event that should not enter buildings? | 2% | Surface water, resulting from an event having a 2% probability of occurring annually, shall not enter buildings. | Answer in E1.3.2 |
Given a wall surface is adjacent to a toilet, what are the moisture requirements of the wall surface? | impervious and easily cleaned | Wall surfaces adjacent to sanitary fixtures or sanitary appliances must be impervious and easily cleaned. | Answer in E3.3.4 |
What is the minimum sound transmission class of floors? | 55 | The Sound Transmission Class of walls, floors and ceilings, shall be no less than 55. | Answer in G6.3.1 |
What is the minimum illuminance at floor level? | 20 lux | Illuminance at floor level shall be no less than 20 lux. Performance G8.3 does not apply during a failure of the main lighting, when the requirements in Clause F6 Visibility in escape routes apply. | Answer in G8.3 |
What is the maximum number of people employed in industrial buildings for Performance G9.3.4 to not apply | 10 | In buildings intended for use by people with disabilities, light switches and plug socket outlets shall be accessible and usable. Performance G9.3.4 shall not apply to housing, outbuildings, ancillary buildings, and to industrial buildings where no more than 10 people are employed. | Answer in G9.3.4 |
What are the attributes a supply system should have in a building which uses gas as an energy source? | safe and adequate for its intended use | In buildings where gas is used as an energy source, the supply system shall be safe and adequate for its intended use. | Answer in G11.2 |
What is the bacteria that a hot water system that is capable of being controlled must prevent? | legionella | A hot water system must be capable of being controlled to prevent the growth of legionella bacteria. | Answer in G12.3.9 |