Closed roof boarding or wallboard

The utility model relates to a closed roof board or wallboard which comprises a filling shaping pressing plate and a glass plate connected in a sealed mode to the filling shaping pressing plate, wherein the cross section of the glass plate is at least one arch shape, vacuum layers are formed between the filling shaping pressing plate and the glass plate, and a vacuum discharging nozzle communicated with the vacuum layers is arranged on the filling shaping pressing plate. Because the closed roof board or wallboard has two vacuum layers and does not conduct sounds and heat, the performance of sound insulation, heat insulation and thermal insulation is good, the effect of energy saving is obvious, the indoor heat environment and the acoustic environment are greatly improved, and the comfort degree of a room is enhanced. The utility model has small volume and light weight, reduces the load of a spandrel girder, also does not use a black cote, enlarges effective using space and saves building cost. In addition, the closed roof board or wallboard has beautiful appearance, and does not need to redecorate the outer surface, and compared with the traditional decorative plastic-aluminum plate with a brick structure or the decorative glass screen, the whole cost reduces from 30 percent to 50 percent. The closed roof board or wallboard can also be manufactured in factories, shortens the period of site operation and saves labor resource. The closed roof board or wallboard of the utility model can also be used as a solar collecting water heater.