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Geography - Building a Sustainable House in Australia

Extracts from this document...

Introduction

SOSE Notes- Zinalume – Sustainable Roofing ZINCALUME steel for Roofing Product Description and Features Roof sheeting made from ZINCALUME® steel is available in a range of profiles. The zinc/aluminium alloy coating on ZINCALUME® steel imparts corrosion resistance of up to four times the life of galvanised steel. Zinculume is the ideal roofing for a eco freiendly house. * Durable and strong * One of the most thermally efficient roofing materials available today * Superior corrosion resistance * Attractive * Available from an extensive network of suppliers * A deterrent against intruders * Excellent resistance to impact from hail * Excellent flexibility in design, can be curved, for truly individual designs * Flexibility of design allows for both traditional straight roof sheeting as well as innovative curved roofing designs * Easy maintenance * Weather tight and secure when installed to manufacturer's specifications. Themal Mass – Rising temperatures: Solution: Thermal Mass. What is it? Thermal mass is the ability of a material to absorb and store heat energy. Materials such as concrete, bricks and tiles have a high density. Using materials that have lightweight such as timber have a low thermal mass. This means that through the hot days throughout the year, they absorb the heat and then at night time when it gets colder the heat is released, this is going to make a major difference to the temperature of your house and your electricity bills because you won’t need to use the air-con/ heater as much now. So for as many parts of your house as you can try to use concrete, this could easily be used for the floor and walls. Then this house will have a lower temperature on average. Street Orientation Orientation is the positioning of a building in relation to seasonal variations in the sun’s path as well as prevailing wind patterns. Good orientation can increase the energy efficiency of your home, making it more comfortable to live in and cheaper to run. ...read more.

Middle

but allows for flow off of rainwater into gutters and pipes. * Small vents on the southern side of the house ideal for the cool breezes to filter through house and large clerestory windows situated on the northern side to allow hot air to rise and flow out of house. * Clerestory windows span around in row near ceilings to provide method of cross ventilation and allow rising hot air to flow out. Also provide natural light in summers without requirement of large windows that bring heat in. * All windows to be of super efficient make that feature soft-coat low-E double- glazed coatings, inert gas in a vacuum-sealed air gap, warm edge spacers and more efficient frame technology. Block over 70% of solar heat gain and provide R-3 thermal resistance- minimizing penetration of heat in summer but maximizing heat absorption in winter. Solution 2: Thermal Mass Insulation (Not to be used in essay) * Thermal mass is the ability of a material to absorb and store heat energy. * Materials such as concrete, bricks and tiles have a high density. * Using materials that have lightweight such as timber have a low thermal mass. This means that through the hot days throughout the year, they absorb the heat and then at nighttime when it gets colder the heat is released. * This makes a major difference to the temperature of your house and your electricity bills because you won?t need to use the air-con/ heater as much now. * So for as many parts of your house as you can try to use concrete, this could easily be used for the floor and walls. Then this house will have a lower temperature on average. Solution 3: Green/Zincalume roof with Deciduous Trees and Grape Wines * Deciduous trees (meaning trees that drop all leaves in autumn) and grape vines provide added cooling through the leaf transpiration process. ...read more.

Conclusion

? The growth of the heat island effect in Perth due to its continued increase in urban development. ? Suggest some of the challenges rising temperatures pose to Perth households. Body Paragraph 2: House layout and orientation ? Detail need for good orientation and layout- topic sentence. ? Houses location on east west axis-detail why (sun orientation in winter and summer). ? Talk about inside layout with living room in north for expose to winter sunlight and heat. ? Detail window structures with clerestory windows to increase air flow and allow rising hot air to flow out. ? Explain how modern, super efficient clerestory windows work. ? Introduce roof layout with porches in east and west sides to block direct summer sun. Body Paragraph 3: Green/Zincalume roof with deciduous trees and grape vines ? Introduce benefits of green and Zincalume roofs. What they are and how they work to absorb/reflect sunlight. ? Implementation of two roofs in house- where/layout and why. ? Benefit of deciduous trees and grape wines- regulation of the heat island effect due to vegetation. Body Paragraph 4: Introduce the challenge of declining rainfall and water supplies ? Outline why rainfall is important for water supplies and the increase in demand in Perth for water. ? Facts/statistics on current rainfall and future predictions. ? Discuss issues created by declining supplies and two possible issues. Body Paragraph 5: Rainwater Harvesting ? Introduce rainwater harvesting and what it is- how is it implemented? ? Detail implementation including facts statistics. ? Benefits to be gained from rainwater harvesting. Body Paragraph 6: Groundwater and grey water extraction and use ? What is ground/grey water and how is it extracted/reused? - Include amount of reserves in Perth. ? Process of groundwater/grey water extraction and system- how to extract and implement. ? Detail how it can solve problem- facts/stats. ? Explain how it can work alongside rainwater harvesting to further reduce water from mains. Macintosh HD:Users:171321:Desktop:Screen Shot 2015-02-18 at 8.33.59 pm.png Macintosh HD:Users:171321:Desktop:Screen Shot 2015-02-18 at 8.36.24 pm.png Macintosh HD:Users:171321:Desktop:Screen Shot 2015-02-18 at 8.34.05 pm. ...read more.

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