The difference between stuffy top floor and attic floor

The attic floor is generally the space available at the top of the sloping roof, with a height of more than 2200, which may not be high enough in some places.

Generally speaking, the top floor is flat roof, and there is a stuffy roof between the flat roof and the top of the slope. It is possible that the floor height exceeds 2200, but it is not used for normal functions. Generally similar to the function of mezzanine, it can be used to place equipment, air ducts, or as maintenance channels.

Building ceilings can be divided into living ceilings and insulation ceilings according to their functions. Living on a stuffy roof, that is, the attic, is generally for people to live and store things; Thermal insulation stuffy roof is mainly used for building thermal insulation.

The building stuffy roof has the characteristics of relatively closed space, low fire resistance and single use function.

Heavy fire load

The fire load density of the closed roof of a building can generally reach 45 kg/m2. In northern China, sawdust is usually placed in the stuffy roof of buildings for thermal insulation, which increases the amount of combustible materials. The attic used for people's living and the stuffy roof used for storing goods have relatively concentrated combustible materials and a large fire load.

Space varies in size

The space size of a building's stuffy roof is generally related to the nature of the building and the size of the building bay. The stuffy roof space of residential buildings is relatively small; Brick-and-wood public buildings, such as schools and hospitals, have a relatively large internal space with a clear height of about 2m. People who live on stuffy roofs have large internal space; The insulation layer is stuffy and the internal space is small.

Less openings

Generally, people who live on stuffy roofs are equipped with stairs connecting up and down, and the roof is equipped with skylights or tiger windows. There are generally manhole in the thermal insulation ceiling, which is generally located in the ceiling at both ends of the stairwell or corridor: some buildings have ventilation holes at the gable of the ceiling.

There are many wires.

Electrical wiring is generally laid inside the stuffy roof of a building, which has been in disrepair for many years, the insulation layer is aging, and the fire hazard is great.

Attic refers to the room located at the lower part of the sloping roof of a house.

For example, the top floor, or the high-rise duplex with a building spacing of more than 4 meters, or the bottom floor business, such as commercial and residential office buildings, has a spacing of more than 4 meters. For example, the LOFT building is 4.8 meters high, and the herringbone roof spacing of residential buildings is also very high, generally reaching more than 4 meters. The 4.2-meter bottom commercial space can be made into an attic. For example, the high-rise space of villa, duplex or high-rise space can be made into attic and two-story terrace, which can be used.

References:

Baidu encyclopedia-stuffy top? Baidu encyclopedia-attic floor