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It is proposed to redesign the existing bedroom shown in the drawing to accommodate a small en-suite bathroom - Leaving Cert Construction Studies - Question 8 - 2014
Question 8
It is proposed to redesign the existing bedroom shown in the drawing to accommodate a small en-suite bathroom. The bedroom is located on the first floor of the dwell... show full transcript
Worked Solution & Example Answer:It is proposed to redesign the existing bedroom shown in the drawing to accommodate a small en-suite bathroom - Leaving Cert Construction Studies - Question 8 - 2014
Step 1
Draw a freehand sketch of the bedroom and indicate a preferred location for the bathroom in the bedroom.
Answer
Begin by sketching the existing layout of the bedroom as shown in the figure. Place the bathroom adjacent to the bedroom to maintain a flow of movement for users.
- Door: Position the outward-opening door on the wall to create more space for maneuverability and avoid obstructing the layout. Place it to avoid a direct view into the WC for privacy.
- Window: A window should be placed opposite the door to enhance natural ventilation and reduce moisture buildup. This can also improve light.
- Shower: Indicate a shower area with modern trays. Common sizes can start from 800 mm x 800 mm, ensuring a comfortable fit.
- Wash Hand Basin: Place the wash hand basin next to the shower; this typically utilizes plumbing efficiently. A corner unit may be utilized to save space.
- W.C.: Position the water closet against the wall farthest from the door for privacy.
Justifying these choices will enhance space efficiency, ventilation, and privacy while ensuring ease of access.
Step 2
Using notes and freehand sketches, show the above-ground pipework necessary for the safe removal of waste.
Answer
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Shower Waste:
- Use a 40 mm discharge pipe connecting to a 100 mm stack.
- Ensure the maximum length of the branch pipe is 4.0 m with a slope of 1 in 40 to prevent blockage.
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Wash Hand Basin:
- Implement a 32 mm discharge branch pipe to the 100 mm stack.
- Limit the maximum length to 1.7 m and maintain a slope of 1 in 40 to ensure efficient drainage.
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W.C.:
- Utilize a 100 mm discharge branch pipe to the 100 mm stack with a maximum length limit of 6.0 m.
- It is critical to maintain the correct depth of seal as per regulations to avoid sewer gas leakage.
Step 3
Outline two design considerations to ensure the economical use of water in the bathroom.
Answer
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Water-efficient Fixtures:
- Implement low-flow fixtures, such as dual-flush toilets that can reduce water usage by up to 30% compared to traditional toilets. This minimizes wastage, particularly with toilet use.
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Use of Aerators:
- Installing aerators in taps will mix air with water, creating a larger stream with reduced pressure. This reduces overall water usage without compromising performance.