Complex structure of the house, the lower layer hanging gypsum board ceiling problems
The center distance between the installation of gypsum board the keel and keel should be maintained at 30 cm (we all do), this is a standard requirement; you have the I-beam spacing is 30 cm? Even if, even if he can screw in, but that way, your top surface of the ceiling is absolutely uneven.
To do the interlayer skeleton I-beam should not be too small (I don't know that you are much steel), direct installation of gypsum board with what little and dovetail screws; nut screw that is exposed (which is to say the kind of large, flat head that is not too small may go). However, the top surface of the gypsum board ceiling can not be exposed by screws. If he got the nut inside, it would have damaged the plasterboard and it couldn't have been strong enough.
First of all, the bottom layer surface I-beam itself is not smooth, and the pressure in the above components, causing it. And, when installing I-beam, it is not necessarily horizontal around it.Only in the four weeks to set a good level, the above needs to put things, such as you say the cement board, and so on, first put in good, and then according to the normal ceiling practice. Drilling the wall around the middle of the wood, can be used in fixed I-steel, keel and then plus wood made of gypsum board (gypsum board is fixed on the batten on). If it is highly limited, it can be placed close to the lowest level of I-beam; if it needs to be lowered a little, it can also fall horizontally.
