With gypsum board keel to do the wall how much money a square, Bao Gong Bao material
There are double-sided single layer 12mm (a layer), there are double-sided double ((12 +9.9 mm), in the middle there plus noise cotton Of the package material: 120-250 yuan / m2
No noise cotton is not good, in fact, the quality of the sound insulation on the market is not too good, are not expensive, the real sound insulation rock wool 7000-8000 yuan / ton, the market is generally very cheap 2000-5000 yuan / ton, see You choose the quality, in fact, a little wall with a little little, that thing is very light, in accordance with the jargon is generally true to reach the weight of 80 on the good
How many square a large area of the price will be about 70, less on your point. I do the ceiling
Sound insulation is not expensive, cancel the words, single-sided double-sided panels, 75 series light steel keel about 100-110 yuan it, not entirely the same around.
