Photo AI
The sketch shows portion of a triple glazed wooden window - Leaving Cert Construction Studies - Question 5 - 2021
Question 5
The sketch shows portion of a triple glazed wooden window. The window is fixed in a 400 mm concrete block wall with a full-fill insulated cavity. The wall is rendere... show full transcript
Worked Solution & Example Answer:The sketch shows portion of a triple glazed wooden window - Leaving Cert Construction Studies - Question 5 - 2021
Step 1
To a scale of 1:5, draw a vertical section through the external wall and bottom portion of the window.
Answer
-
Start with a base line representing the concrete window cill level.
-
Draw the external render layer (19 mm thick) above the cill on the left side, followed by the concrete block outer leaf (100 mm).
-
Indicate the full-fill insulated cavity next (also labeled) and then show the concrete block inner leaf (100 mm) on the right side.
-
Add the internal plaster (13 mm thick) lining.
-
Include the cavity closer at the junction of the outer leaf and the insulation.
-
Clearly label the window frame dimensions (120 mm x 80 mm) and draw the triple glazing at the top of the window.
-
Use a ruler to ensure dimensions and angles are accurate and add at least three typical dimensions (e.g., total height, width of frame, thickness of insulation) to your drawing.
Step 2
Show on your drawing the typical design detailing to prevent water entering at the window cill.
Answer
-
Illustrate the throating/drip detail by drawing a slope on the external render that overhangs the window cill.
-
Add a waterproof membrane or DPC (Damp Proof Course) along the cill to prevent moisture ingress.
-
Demonstrate the window board placement above the cill, ensuring it is slightly sloped to direct any water away from the wall.
-
Label the throating/drip, window board, and any damp proofing details clearly to highlight their functions.