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Science and materials in construction and the built in environment

P1) Describe the basic factors in simple scientific terms that influences human comfort in the internal environment •Air temperature – Heat too hot too cold •Lighting – Too dim not enough daylight •Noise – Discomfort of hearing •Air quality – Too stuffy, ventilation P2) Describe how each factor is measured •Air temperature – Celsius Acceptable level 33 C •Lighting – Lux Acceptable level 100 (lx) Colour rendition (80 lx is considered acceptable for residential applications)\ •Noise – Db Acceptable level 65 Db •Air quality – Humidity is measured in terms of relative and is expressed in a percentage of 100%, Acceptable level 50% (for comfort Relative Humidity 40 to 70 %) P3) Describe acceptable values for each factor Sketch on…