2results about How to "Sound insulation" patented technology

The utility model relates to composite roof technical field discloses a kind of color steel sheet composite roof, including multiple wooden piles 1, multiple wooden piles 1 top is erected with same wood girder 2, multiple wood side beam 3 are extended in wood girder 2 two sides, steel beam 5 is erected above wood girder 2, steel beam 5 is connected with wood girder 2 top by steel prop 6, wherein multiple steel side beam assemblies are symmetrically arranged in steel beam 5 two sides, tile roof is laid on wood side beam 3, and color steel sheet is laid on steel side beam assembly.The utility model leaves gap between girder and steel beam, forms air layer, and further makes through the staggered lap joint design of tile roof and color steel sheet, cooperates the flow guiding effect of air layer, to form air convection between tile roof and color steel sheet space, forms certain ventilation condition, this unique design not only realizes double waterproof function, more effectively blocks heat conduction and sound propagation, and has the excellent performance of heat insulation and sound insulation.

The utility model relates to a related field of silencing assembly, especially a fan air inlet silencing assembly, including outer frame, silencer, support frame, silencing louver, filter screen, damping plate, first sound insulation board and sound insulation roof plate etc.