1.0 IntroductionThe building is an important structure for humanity. In the general definition, a building is a structure with a roof and a wall, such as a house, factory or school. The different types of buildings depend on function, capacity and size. This will therefore give a different design and materials to the building structure. For some buildings, many defects must be taken into account for further measurements. According to the Building Code of Australia (nd), construction defects are buildings outside of the warranty period, which may not conform to these standards, but which must be judged against the standard at the time of construction or renovation. Examples of defects are cracks, damage or deteriorated brick wall and corrosion of aluminum windows. Additionally, indoor air quality is an important factor in good building design. The air quality factor is the quality and comfort of furnishings and the degree of control occupants have over the environment. Poor air quality causes human illness, also results in loss of occupant productivity and costs may exceed the additional initial cost, in case of new construction or renovation. It can also be short or long lasting and range from a minor irritation to a life-threatening illness. Sick building syndrome is a short term effect as soon as people leave the building and building related illness is more critical than sick building syndrome because building pollution containing hazardous chemicals can cause cancer and Legionnaires' disease. Improve indoor air quality by carrying out building maintenance, ventilation control and occupant activity control.1.2 Problem statement1.3 Objective1.3.1 To study the causes of sick building syndrome.1.3 .2 Identify typical symptoms of sick building syndrome.1.3... .... middle of paper...... Increased biological contamination is due to moisture from damp building materials such as Ceiling, carpet and walls and poorly maintained. Additionally, various fungi and molds grow quickly in hot weather. These contaminations can be distributed into the air by inhalation by building occupants.2.1.1.4 Chemical contamination.Certain solids or liquids have produced a gas called volatile organic compound (VOC). Volatile organic compound (VOC) is the most common contamination of indoor air. Many chemicals have short- or long-term health effects. (Levin.H, 2014) state that concentrations of many VOCs are consistently higher indoors (up to ten times higher) than outdoors. Sources of VOCs include carpets, photocopiers, cleaning products and manufactured wood products. Additionally, ambient tobacco smoke, unventilated space heaters and fireplaces will increase chemical contamination...