What is the role of sunfilter in building, Civil Engineering

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QUESTION

(a) Using an illustration, describe what happens to sunrays when it passes through the atmosphere to reach the ground.

(b) What is the role of a sunscreen/sunfilter in building?

(c) Explain briefly the three types of external sun protection

(d) Draw three types of external fixed sun protection showing % of shading with varying position of the sun


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