Roof Systems Essay

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ROOF SYSTEMS ROOF SYSTEMS ROOF SYSTEMS ROOF SYSTEMS • Function as the primary sheltering element for the interior spaces of a building • Its form and construction should control the flow of water as well as passage of water, air, heat and cold. • The gravity loads for a building begin with the roof system. t • A roof must be structured to span across space and carry its own weight and live loads. • The form of a roof system has a vital impact on building’s visual image The factors considered in a roof design • • • • • • • • • • • • • • • Roof form and type of weatherproof covering Structural strength and stability Weather shield (rain, snow, wind, sun, dirt and dust) Drainage Durability Thermal performance – heat gain, heat loss – Th Thermal movement l t Form vault Construction and material Brick tile bonded membrane RC Cast in Timber frame Condensation risk Sound Maintenance (external, internal) Security Fire penetration, fire spread Natural light Ventilation Roof access and safety Cost dome pnomatic gable Steel frame Flat surface ROOF SYSTEMS • Roof covering • Air layer (may/ may not be) • Insulation layers (must be) – thermal, water, sound, fire… water sound fire • Roof deck (core) • Ceiling • Roof drainage system – gutters and pipes • Roofing accessories – flashing, outlets, pipes, roof windows) Classification of the roof system • Accoring to Slope – FLAT • Can be walked on • Can not be walked on • Roof garden According to Form (pitched) – Plenary surface • Single pitch – tek eğimli • Gable – beşik • Hipped – kırma • Mansard • Folded plate – katlanmış p – PITCHED • Low slope – 6-16% • Moderate – 20-35% • High slope – 45-∞% • – Curvilinear surface • Single (vault) • Double (dome, shell…) Roof covering Thermal insulation Waterproofing membranes Roof deck (core • According to the Location of the

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