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The elevation and the ground floor plan of a house are shown - Leaving Cert Construction Studies - Question 6 - 2014
Question 6
The elevation and the ground floor plan of a house are shown. The house has three bedrooms and a bathroom upstairs. The external walls are of timber frame constructi... show full transcript
Worked Solution & Example Answer:The elevation and the ground floor plan of a house are shown - Leaving Cert Construction Studies - Question 6 - 2014
Step 1
With reference to the design shown, discuss in detail, using notes and freehand sketches, three features of the design that contribute to the house having low environmental impact.
Answer
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Orientation of the House: The house is oriented to maximize solar gain. This is critical as it allows for passive solar heating, reducing the need for artificial heating during colder months. Large windows on the south-facing side capture sunlight effectively.
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Use of Sustainable Materials: The external walls are made from timber frame construction with a rendered concrete block outer leaf. Timber is a renewable resource, and using responsibly sourced timber reduces the overall carbon footprint of the building. Concrete blocks can be made using low carbon mixes.
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Energy Efficiency Features: The design incorporates features aimed at energy efficiency, such as proper insulation and roof overhangs that prevent overheating in summer while maximizing sunlight in winter.
Step 2
Describe, using notes and freehand sketches, two other design features that could be introduced to further reduce the environmental impact of the house. Justify your choice of design features.
Answer
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Photovoltaic Solar Panels: Installing photovoltaic panels on the roof would harness solar energy, providing renewable electricity and reducing reliance on fossil fuels. This aligns with the goal of minimizing environmental impacts while also lowering energy costs long-term.
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Rainwater Harvesting System: A system to collect and reuse rainwater could be integrated into the design. This system would help reduce the demand on the local water supply, lessen water bills, and provide an eco-friendly option for irrigation and non-potable uses in the home.
Step 3
Discuss the importance of designing low environmental impact housing.
Answer
Designing low environmental impact housing is essential for several reasons:
- Sustainability: It reduces the depletion of natural resources, ensuring that the environment is preserved for future generations.
- Energy Efficiency: Low-impact designs focus on energy conservation, which can significantly lower energy bills and minimize the building's carbon footprint.
- Health Benefits: Better air quality, natural light, and the use of non-toxic materials contribute to the overall health of inhabitants.
- Community Impact: Such designs often incorporate local materials and resources, enhancing community resilience and sustainability.