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A living room has a solid concrete ground floor with a 20 mm quarry tile finish as shown - Leaving Cert Construction Studies - Question 1 - 2010
Question 1
A living room has a solid concrete ground floor with a 20 mm quarry tile finish as shown. The external wall of the living room is a 350 mm concrete block wall with a... show full transcript
Worked Solution & Example Answer:A living room has a solid concrete ground floor with a 20 mm quarry tile finish as shown - Leaving Cert Construction Studies - Question 1 - 2010
Step 1
(a) Draw a vertical section through the external wall and ground floor
Answer
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Start by setting the scale to 1:5 for accurate representation.
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Begin at the base of the drawing to represent the concrete foundation, ensuring it reflects a depth of 400 mm above the finished floor level.
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Draw the 150 mm concrete floor slab above the foundation, ensuring it's appropriately marked.
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Represent the 100 mm concrete block wall and include details for the inner and outer leaf with plastered finishes. The blocks should be labeled to indicate their dimensions.
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Include the D.P.C (Damp Proof Course) above the foundation to prevent moisture ingress.
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Illustrate the 50 mm cavity wall with thermal insulation and label its components, adhering to the specified material.
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Mark the 20 mm quarry tiles finishing the floor and assure to show joints for the connection with the wall. Include the skirting board dimensions of 120 x 20 mm.
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Clearly label at least four main components as typical sizes: concrete foundation, concrete block wall, concrete floor, and thermal insulation.
Step 2
(b) Show on your drawing the typical design detailing to prevent a thermal/cold bridge
Answer
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On the drawing, illustrate the junction between the concrete floor and external wall.
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Indicate the inner leaf with thermal blocks featuring a U-value of 0.20 W/m²K to ensure energy efficiency.
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Detail the cavity insulation between the inner leaf and the external wall, illustrating 100 mm of HD thermal insulation to minimize heat loss.
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Show the flexible seal between the wall and floor to prevent moisture issues, ensuring it's visible in the joint region.
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Include a diagrammatic representation of the insert perimeter insulation at floor level labeled as 'b2'.
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Ensure the design complies with current Building Regulations, marking any specifics such as the D.P.M./radon barrier for enhanced performance.