Rush! Light steel keel ceiling how to determine the ball line?
If you start to find the 50 line has been calculated when these, then you can directly from the 50 line up on the amount, if not counted into, then you must calculate the height of the ceiling, playing 2.8M ceiling height, such as the ground Tiles of tiles, from 50 lines up 2.34M, such as the ground floor of the solid wood floor on the amount of 2.87M]
Set the height after the mark, and then according to the mark around the wall around the height of the roof of the ceiling and draw a good keel on the wall, both sides of the first boom from the wall 150mm ~ 300mm, should not be greater than 300mm. From the wall distance of not more than 150mm.
The main keel spacing should not be greater than 1200mm, generally in the 800 ~ 1000mm. Pop up the main keel position on it.
Suspension point line and ceiling height line
First to find the indoor level, pop 50 (read: five) horizontal line (500mm from the ground level)
For example, if the ceiling is 2.8M high, then from the 50 line up 2.3m, (horizontal allowable deviation of ± 3㎜)
[PS: 2.8M is the completion of the surface size, meaning the ceiling when the size of finished, measured from the ground is 2.8M
Need to deduct the hanging stalk, hanging pieces, the main keel vice keel, ceiling material. Completed surface maintained at 2.8M
