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     1  +1 2014 aug 23wet area bathroom floorPros and cons of wet area floor finishes - LevelA wide range of wet area flooring and floor finishes is available, each with .... Bath with shower over – minimum extent of waterproof membrane ...
     1  ~ 2014 aug 02extraction rate airAir extraction systems and energy efficiency - LevelAir extraction systems remove moist or polluted air , typically from kitchens and bathrooms, to the outside. On this pag. Extraction rate ; Fans ...
     2  +4 2014 jul 25how to control humidityHumidity and condensation in a building - How to control it - LevelHumidity and condensation can compromise building occupants' health and comfort, ... relative humidity (RH); reasons for high humidity; controlling humidity  ...
     2  ~ 2014 jul 21embodied energy costsWhat is embodied energy in building? - LevelEmbodied energy is one part of a building material's overall ... energy with factors such as climate, availability of materials and transport costs .
     3  +2 2014 sep 20analysing siteAnalysing the features of a building site - LevelSite Analysis . Understanding all the features of a site , using and protecting the best, and minimising the impact of the worst. Text Size. Decrease; Increase.
     3  +1 2014 aug 28thermal mass floorsThermal mass and Designing for Heating and Cooling - LevelThermal mass must be properly designed to be effective for passive heating or cooling. On this page: using thermal mass for heating and cooling; floor  ...
     3  +6 2014 aug 10suitable building sandSite suitability on a building site - Where is the best place to buildsite is suitable for building on, where the best place may be to locate a building and ... Soil types that have insufficient bearing pressure include peat, sand and ...
     4  -3 2014 sep 27heat reduction ventilation systemsHeat and energy recovery ventilation systems | HRV | ERV - LevelHeat recovery ventilation (HRV) and energy recovery ventilation (ERV) can provide cost effective ventilation systems that also reduce moisture ...
     4  +1 2014 sep 01wetbacks new zealandWhat is a wetback ? When should you use it in building design - LevelWetbacks generally provide a boost to the water heating system, particularly in the winter when most required. ... New Zealand Standards.
     4  -1 2014 aug 30grey water waste sytemsHow does a greywater system work? - LevelA greywater system diverts waste water either to an irrigation or a treatment and ... Greywater systems used for irrigation typically comprise a surge tank and a ...
     5  ~ 2014 aug 16onsite wastewater treatmenton-site wastewater treatment - LevelOn-site wastewater treatment is an option if there is no sewer available or if the owner wants to recycle water to reduce demand on mains wastewater systems.
     6  -2 2014 aug 23composting toilets nzWhen can you use composting toilets - LevelComposting toilets can be used where there is no mains sewer connection or in some circumstances to reduce demand on the mains sewer. ... Composting (or waterless) toilets eliminate the need for flushing water. ... New Zealand Standards.
     6  +95 2014 aug 04dedicated power source waterFixed wiring when designing - LevelIf cylinder has a controlled or separately metered power supply , a separate ... hot water storage, 4 mm2 two-core plus earth TPS cable dedicated supply circuit ...
     6  ~ 2014 jul 26thermal mass storageThermal mass must be properly designed to be effective for passive heating or ... be 100–150 mm thick to provide sufficient mass for optimal heat storage ; have ...
     7  +2 2014 sep 11domestic hot water layoutDesign and layout of pipes for water supply to a building - LevelAs an example of the difference in water usage, a low pressure hot water system shower flow may average about 7 litres per minute, while a mains pressure ...
     7  ~ 2014 aug 29solar cylinder sizeChoosing the right storage cylinder for solar water heating solutionsCylinder location; Cylinder size ; Control of temperature ... Clause G12/AS2 provides an acceptable solution for solar water heating systems.
     8  +1 2014 oct 01grey water recycling systemsGreywater and recycling for use in gardens and toilets - LevelIt can be recycled for use in garden irrigation and, if treated, for toilet flushing. Recycling greywater : reduces the load on sewerage systems including on-site ...
     8  -2 2014 sep 07grey water tankGreywater systems used for irrigation typically comprise a surge tank and a method of discharge to an irrigation system. Greywater systems used for toilet ...
     8  +36 2014 sep 02interior wall sound barriersInterior noise control in a building - LevelThe amount of sound loss through a wall will depend on the mass of the wall ... Solid masonry construction provides an excellent acoustic barrier as well as ...
     8  +93 2014 aug 26building electrical wiringWiring installation in a building - LevelWiring requirements differ depending on the construction type and building ... Do not install power cables over trusses, to avoid the likelihood of a roofing nail ...
     8  +10 2014 aug 14bathroom heating optionsSpace heating and room options when building - LevelAlways start with the simplest and cheapest option for the circumstances. As discussed in ... The space heating system for a bathroom needs to: provide for short ...
     9  +7 2014 sep 17grey water recycling systems imagesA greywater system diverts waste water either to an irrigation or a treatment and ... Greywater systems used for toilet flushing should have a treatment system .
     9  ~ 2014 sep 05hot water cylinder sizesHot water storage cylinders - LevelA disadvantage is that they can run out of hot water . Find out about: statutory requirements; cylinder size ; cylinder location; cylinder insulation; controlling ...
     9  +5 2014 aug 30grey water system
     9  -1 2014 aug 25water pipeline designThe water supply system must be designed to achieve appropriate water pressure and ... Water pressure; Water flow rate; Flow rate and pipe size Acceptable ...
     9  +3 2014 aug 20grey water tanksGreywater systems - Level
     9  ~ 2014 jul 22micro-hydro power generating systemMicro hydro systems and Renewable energy - LevelHowever, because power can be produced 24 hours a day 7 days a week, hydro may be a ... Typical micro - hydro electricity generation system .
     10  ~ 2014 sep 29prv valves in ppr materialAlso see installation, noise and air locks, pipe jointing systems, and valves and controls.
     10  +91 2014 sep 14grey water systems
     10  -9 2014 aug 09proper building groundA thorough investigation and assessment of ground conditions and stability is ... Good ground is defined in NZS 3604:2011 Timber framed buildings as soil that ...
     10  -3 2014 aug 03tap flow breakerDesigning water supply systems and preventing backflow - LevelA vacuum breaker contains a float disc and an air inlet port. ... closes off the air inlet port, but if the normal water flow is interrupted, the float drops, ... Taps , sinks.
     10  +33 2014 jul 19plumbing system in buildingConsiderations in sanitary plumbing and drainage in building - LevelBuilding design considerations · Sanitary plumbing systems ... There are several issues with sanitary plumbing and drainage that must be considered during ...
     11  +7 2014 sep 21sample passive houseKey features of designing a home with passive design - LevelUsing passive design can reduce temperature fluctuations, improve indoor air ... For example , it will not be practical to turn a completed house around on the site  ...
     11  +90 2014 aug 15concrete floor insulationOptions for floor insulation - LevelThe type of floor insulation used will depend on whether the floor is concrete slab or a ... Concrete slab floors are typically insulated with polystyrene board.
     11  ~ 2014 aug 07micro hydropower systemsMicro - hydro systems use flowing water to turn a water turbine that generates electricity in an ... Typical micro-hydro electricity generation system.
     12  +4 2014 aug 30grey water treatmentThe surge tank must be emptied completely each time greywater is dispersed to the irrigation or treatment system – greywater must not sit for extended periods ...
     12  -2 2014 jul 28advantages of heat pumpHow much do you save in terms of energy for a heat pump ? - LevelAdvantages and disadvantages of heat pumps ; How heat pumps work; Heat pump energy sources; Energy efficiency of heat pumps for space ...
     13  +3 2014 sep 01gas hot water cylinderHot water supply - Levelmaximum standing heat loss (kWh per day) for electric hot water cylinders of different sizes; maximum gas consumption rate and minimum thermal efficiency for ...
     13  ~ 2014 aug 27wet tiles tick betterAs it can be treated to H3, giving it good resilience to water damage, it may be
     13  +50 2014 aug 03glazing unit coatingsGlazing and thermal performance in a building - LevelInsulated glazing units (IGUs) may be double- or triple-glazed, although ... Reflective glazing, has coatings typically added to the surface of ...
     14  +25 2014 sep 29passive house designUsing passive design can reduce temperature fluctuations, improve indoor air ... a combination of location and orientation, room layout, window design and ...
     14  -1 2014 aug 28micro hydro generaterMicro - hydro systems use flowing water to turn a water turbine that generates electricity in an alternator. On this page: Micro - hydro system ...
     14  -1 2014 aug 08what is convectionWhat is convection heating? Types of convection heaters - LevelIn convection heating, air is heated when it comes into contact with hot surfaces in the heater. People feel warmer because of the higher air temperature.
     14  +87 2014 aug 02grey water recyclingSome local authorities in New Zealand encourage greywater recycling , but other authorities do not. The local authority should be contacted before you begin to ...
     14  -3 2014 jul 26new zealand photovoltaicsPhotovoltaic systems and Renewable energy - LevelPhotovoltaic systems ( PV systems) absorb sunlight and convert it into ... Solar panel orientation – In New Zealand , the sun follows an arc to the ...
     14  -4 2014 jul 22micro hydro turbine generatorMicro - hydro systems use flowing water to turn a water turbine that generates electricity in an ... Typical micro - hydro electricity generation system.
     15  +86 2014 oct 02plaster ceiling finishesWall and ceiling finishes in wet areas - LevelWet area wall and ceiling linings and finishes ... cement-based solid plaster and concrete with steel trowel or polished finish ; cork tile or sheet ...
     15  ~ 2014 sep 21levelLevel | Authority on Sustainable Homes | Subsidiary of BRANZ LtdLevel will help you design and build homes which have less impact on the environment and are healthier, more comfortable, and have lower running costs.
     15  -3 2014 aug 08micro hydro turbineMicro - hydro systems use flowing water to turn a water turbine that ... Few houses have micro - hydro as an option: typically, only those on or near ...
     16  +46 2014 aug 02plumbinng installation and designCommon plumbing coordination and installation issues ... of a lack of coordination at the design stage, and/or between builder and plumbing contractor.
     17  +19 2014 oct 04heat pump efficiencyHeat pumps can be an extremely energy- efficient form of space heating and cooling – provided they are sized, installed, and used properly.
     17  +1 2014 aug 06smoke alarms installationSmoke alarms – Installation , requirements and importance - LevelTo be effective, an installed smoke alarm must be operating properly, audible through closed doors and able to detect smoke from all types of ...
     17  +4 2014 aug 03greywater treatment systemsGreywater is wastewater from bathrooms, diverted for garden irrigation or (if the ... reduces the load on sewerage systems including on-site treatment systems  ...
     17  +18 2014 jul 17polyurethane shower glazeThey must have 6% maximum water absorption, and glazed tiles should have ... water- or solvent-borne polyurethane , cementitious two-part coating, or peel ... Enclosed tiled shower – minimum extent of waterproof membrane.
     18  +83 2014 aug 16hot water piping systemsEnsuring hot water pipes are up to standard in a building - LevelThermoplastic piping should not be used where a hot water system includes an uncontrolled heat source such as a wetback or a solar heating system .
     18  -1 2014 aug 03efficient central heating useCentral heating systems in homes - LevelMost central heating systems use gas or electricity, but some use energy- efficient sources such as heat pumps, waste heat recovery, or the ...
     18  -11 2014 jul 27micro hydro systemsMicro - hydro systems use flowing water to turn a water turbine that generates electricity in an alternator. On this page: Micro - hydro system  ...
     18  +15 2014 jul 17supply lines and headersThe water supply system must be designed to achieve appropriate water
     19  +19 2014 aug 28high flow tap valveA flow rate that is too high will result in water being wasted, whereas a flow rate that is ... and flow information when selecting tempering valves and outlets ( taps ,  ...
     19  +3 2014 aug 01clear glazed windowsThermal performance of windows and glazed doors is determined by ... Argon gas is a low-cost, clear , non-toxic, naturally occurring gas with a ...
     19  -1 2014 jul 22mini water turbineMicro -hydro systems use flowing water to turn a water turbine that ... Few houses have micro -hydro as an option: typically, only those on or near ...
     20  -3 2014 oct 02waterproof floor layerA wide range of wet area flooring and floor finishes is available, each with pros ... water-resistant material that is ideal as a wet area floor finish.
     20  +81 2014 aug 30smoke alarm installation
     20  +13 2014 aug 30wet systems resinPoor wet area design or installation can compromise safety, comfort and ... for use in showers); epoxy -based coating systems ; polyester resins  ...
     20  +23 2014 aug 18small water turbine
     20  +66 2014 aug 12install smoke alarm
     20  ~ 2014 aug 10test for asbestosAsbestos - Testing for it in a building - Health risks - LevelAsbestos -based products were widely used in construction from the 1920s to the mid-1980s. Commonly used products that contained asbestos  ...
     20  +4 2014 aug 01what is timber usedTreated timber - The types, hazard classes, alternatives - LevelThe level of treatment selected must be appropriate for the intended use of the timber . The most commonly used preservatives for timber treatments are:.
     20  +76 2014 jul 24humidity in houseHumidity and condensation can compromise building occupants' health and ... allow air movement while maintaining security when the house is closed up.
     21  -4 2014 sep 16sprinklers for grey water systemsGreywater is wastewater from bathrooms, diverted for garden irrigation or (if the ... Some local authorities in New Zealand encourage greywater recycling , but ...
     21  +16 2014 sep 09wood shower floorsA wide range of wet area flooring and floor finishes is available, each
     21  +10 2014 aug 30designing a houseUsing passive design can reduce temperature fluctuations, improve indoor air quality and make a home drier and more enjoyable to live in. It can also reduce ...
     21  +11 2014 aug 22home isulation optionsOptions for wall insulation - LevelInsulation options should be considered alongside other passive design features. In particular, insulating the materials on a building's interior means they cannot ...
     21  +18 2014 aug 15transformer cost to runMains and Grid power when building - LevelCurrent grid-connection costs vary considerably depending on energy ... transformer installed and 800 metres of three-phase mains cable may cost over $50,000. ... In some areas, the cost for long runs may necessitate an overhead cable.
     21  +80 2014 jul 26water supply system diagramsAll water supply systems use a combination of pipes (of different dimensions and materials), valves and outlets to deliver water to building users. Some water ...
     21  +8 2014 jul 20desgining hotwater systemDesigning a water heating system - LevelHot water supply must be adequate to meet building users' needs while also keeping them safe. It should also support efficient use of both energy and water.
     22  -5 2014 aug 19argon filled double glazingA double - glazed IGU typically consists of two sheets of glass spaced ... may contain dry air, or be a partial vacuum, or be filled with argon gas.
     22  -4 2014 aug 08types of timberTreated timber - The types , hazard classes, alternatives - LevelTimber treatment preserves timber but can also be hazardous to health. On this page: types of timber treatment; hazard classes; LOSP preservative; CCA ...
     22  -4 2014 jul 17smoke detectors installerPeople who are sleeping do not smell smoke and are unlikely to wake up in the event of a fire, so the most effective way to ensure they do wake ...
     23  -7 2014 aug 02grey water toilet systemIt can be recycled for use in garden irrigation and, if treated, for toilet flushing. ... Greywater systems must be designed so that any overflow can be discharged to ...
     24  -2 2014 sep 08hot water services
     24  -7 2014 aug 18no water composting toiletComposting toilets can be used where there is no mains sewer connection or in some ... Flushing toilets account for approximately 30% of domestic water use.
     24  +2 2014 aug 05room vent internalThe most effective passive ventilation to remove internal moisture is simply to ... The recommended minimum vent area is 4000 mm2 of air opening per room  ...
     24  +18 2014 aug 03best heating optionsSpace heating options by room. Each room in a house has different heating requirements, so different types of heaters will provide the best outcome in terms of ...
     24  +27 2014 jul 31electric water pipePipe installation and requirements - LevelWhere pipes cross other services below ground, they must comply with the details shown in the following diagram. Water supply pipe crossing electric cable or ...
     25  -2 2014 aug 06hse working at heightHSE Act requirements - LevelElectrical safety · Working at height ... Under the Health and Safety in Employment Act ( HSE Act), employers must ... Fall prevention is required in locations such as an excavation edge, a floor hole, a working platform, an unprotected edge or ...
     25  -11 2014 jul 26mini hydro turbine
     25  -14 2014 jul 17designing a home
     26  +75 2014 sep 23photovoltaic systemsPhotovoltaic systems ( PV systems ) absorb sunlight and convert it into electricity. They can be used as part of a stand-alone power system in ...
     26  -8 2014 aug 09concrete block insulationThe type of wall insulation used will depend on the construction system. ... concrete walls; Insulating precast concrete walls; Insulating polystyrene block walls.
     27  +3 2014 sep 02rubber sheet wettingPoor wet area design or installation can compromise safety, comfort and ... synthetic or natural rubber sheet with welded seams; linoleum (not ...
     27  -8 2014 aug 23domestic air systemWith an air extraction system , replacement air is drawn in due to reduced ... Typical air flow rates for domestic air extraction systems range from ...
     27  +3 2014 aug 12compost toilet plansTypes of composting toilets - LevelBRANZ does not recommend self-designed composting toilets . A range of ... systems, which makes planning easier particularly if more than one toilet is required.
     27  +9 2014 jul 26building construction termsWhat are construction systems in building terms ? - LevelConstruction systems are the ways in which materials are combined to construct the elements of a building . They can be classified according to the mass of the ...
     28  ~ 2014 sep 05chart sun angle monthlyAnalysing sun impact on a building site - LevelSun path diagrams provide a broader overview of sun on a site as they map the path of the sun across the sky at different times during the day throughout the ...
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