Such questions. Ask an expert to help advise!!
I think it depends on the use of the attic. If it is out of the storage room, it is better to use channel steel. The construction is convenient, the cost is not high, and the bearing is enough. But if it is out of the room, it may be better to cast in placeMy home is a storage room, with the channel, did not shake the feeling, and the ceiling is not good. I want to crack crack is the ceiling decoration when do not cause, and with no direct relationship. What interlayer added: cast steel frame and each has its own advantages and disadvantages, in addition to the above several mentioned price factors, sound insulation effect, simple construction of the steel frame (relative cast-in-place for), as long as the proper construction (for experienced professional (staff) Company) should not be like the steel welding good will shake, 10000% ceiling cracking, the cost is not low, the cost is very high, the noise is too large for a long time. The wood board ceiling or rotten, cracking phenomenon, now generally spans more than 3 meters will be used to make steel, there are no shaking, and part of the ceiling steel frame does not occupy a space, can make a building Type, the cast is not good, if you want to do, you have to sacrifice height, and the general floor space is not very high, as the choice depends on your own intentions and needs
Dear LZ, I am not an expert to collect suggestions and hope to help you more than the advantages of cast steel has good sound insulation, good toughness of welding or shaking, if below the ceiling, 10000% crack, treatment is not good, the cost is not low, not only to shop above board, but also among insulation materials below the ceiling (or channel was ugly) the cost is also high, is too noisy. For a long time board rotten, ceiling cracking that was rebuilt, tired.In my opinion, it is still well watered, and the cost is still at the end. The effect is good, and it can be said that once and for all
2, steel and wood structureAdvantages: light weight, simple workmanship, short construction periodDisadvantages: relative instability, poor sound insulation, if buy steel is not good, they will feel to walk on"Method：A, each room all slotted (on ring beam)B, the channel is inserted into the slot, with expansion bolts (or expansion screws) fixedC, H steel (or I-beam) shall be welded to channel steel at a certain distanceD, each section of H steel is directly connected with angle ironE, brush antirust paintF, laying boards
Double story building, intermediate layer with channel steel and cast in place each has advantages and disadvantages, the following detailed description:1 、 cast-in-placeAdvantages: strong, relatively sound insulationDisadvantages: self importantMethods: in the load-bearing wall planting steel, tied with steel, formwork, pouring 10~12cm, waiting for about 28 days molding (summer time is slightly shorter)
