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A double-glazed timber casement window, as shown in the sketch, is fixed in a 300mm external concrete block wall with insulated cavity - Leaving Cert Construction Studies - Question 1 - 2006
Question 1
A double-glazed timber casement window, as shown in the sketch, is fixed in a 300mm external concrete block wall with insulated cavity. The wall is plastered on both... show full transcript
Worked Solution & Example Answer:A double-glazed timber casement window, as shown in the sketch, is fixed in a 300mm external concrete block wall with insulated cavity - Leaving Cert Construction Studies - Question 1 - 2006
Step 1
Indicate one design detail that would prevent the cold-bridge effect at the window cill
Answer
A crucial detail to prevent the cold-bridge effect at the window cill is to include proper insulation. Place the insulation layer within the cavity adjacent to the cill to reduce thermal bridging. This can involve extending the insulation from the outer leaf towards the cill area, ensuring there are no gaps. Additionally, a damp proof course (D.P.C) should be integrated above the cill to prevent moisture penetration, which further mitigates the risk of cold-bridging.