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The sketch shows the uninsulated attic space of a dwelling house - Leaving Cert Construction Studies - Question 2 - 2022
Question 2
The sketch shows the uninsulated attic space of a dwelling house. The homeowners wish to add insulation to the roof at ceiling joist level and around water storage t... show full transcript
Worked Solution & Example Answer:The sketch shows the uninsulated attic space of a dwelling house - Leaving Cert Construction Studies - Question 2 - 2022
Step 1
Using notes and freehand sketches, show one suitable method of insulating the roof at ceiling joist level. Specify the type and thickness of insulation.
Answer
To insulate the roof at ceiling joist level, the insulation roll is cut to fit between the ceiling joists. The insulation is unrolled tightly and packed between the ceiling joists above the plasterboard. Additionally, layers of insulation are positioned above the bottom layer in a cross formation.
Type of Insulation:
- Fibreglass Insulation
- Blow In Cellulose
- Spray-foam insulation
- Hemp insulation
Thickness of Insulation:
- A minimum thickness of 300 mm of insulation is recommended.
Step 2
On a separate sketch show, using notes and freehand sketches, how the water tank and pipework could be insulated.
Answer
For the water tank, attic insulation is installed around the sides and the top of the water tank. This helps to retain heat and prevent freezing during cold weather.
For the pipework, polyethylene foam tubes are placed around all pipework in the attic. Duct tape is used to join two foam tubes together where they meet. Reflective pipe lagging insulation can also be used to surround all pipework.
Step 3
Discuss two advantages of highly insulating the attic space of a house.
Answer
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Reduced Heat Loss: Proper insulation significantly reduces heat loss, helping to maintain a stable indoor temperature and enhancing energy efficiency.
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Lower Energy Bills: With reduced heat loss, homeowners can expect lower energy bills as less energy is needed for heating, resulting in long-term savings.