The main function of doors in a building is to act as a cohesive link between the interiors and to allow free movement towards the exterior of the building. Windows are generally provided for adequate ventilation and lighting and their number should be determined according to requirements.
Doors and windows must meet the following requirements:
- Sound and Thermal Insulation: They should be capable of being made air tight to achieve insulation against sound and heat.
- Damp Prevention and Termite Prevention: They should not be affected by white ants and the moisture penetration as this will reduce the strength and durability.
- Fire Resistance and Durability: They should offer fire resistance and should be durable.
- Privacy and Security: They should offer sufficient privacy without inconvenience or trouble and security against theft.
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