A roof is a structure that covers the top of a building and protects it from the elements, such as rain, snow, and sunlight. Several parts of a roof work together to protect the building and keep it weather-tight. These parts include:
1. Roof deck: The roof deck is the flat surface that forms the base of the roof. It is typically made of wood or concrete and is supported by rafters or trusses.
2. Rafters or trusses: These are the structural members that support the roof deck and transfer the weight of the roof to the walls of the building.
3. Underlayment: The roof underlayment is a layer of material that is installed on top of the roof deck before the roofing material is applied. It helps to protect the roof deck from water damage and provides an extra layer of insulation.
4. Roofing material: This is the outermost layer of the roof and is what is visible from the ground. It is typically made of asphalt shingles, metal, tile, or wood.
5. Flashing: Flashing is a thin piece of metal or other material that is used to seal the joints between the roof and other parts of the building, such as the chimney or skylights. It helps to prevent water from leaking into the building.
6. Gutters and downspouts: These are the components that collect and channel water away from the roof and the foundation of the building.
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