As builts and columns marking. Slab level and cast-ins check, marking lines for verticals. 

Time for as built survey. Checking slab level and cast-ins position and straight after marking lines for columns and walls to start next level.
Be the first on the slab! This will give you the time to do the as builts and start marking columns and walls before anyone is on. Your PM should be very happy with this and definitely you’ll be paid for the extra time and if the initiative will come from you this will show the management that you care about your work and it will pay off trust me ⬇️⬇️
First we are checking quickly the level and start checking boxes. We use a survey program for it and set the target height on you EDM as your SSL, this way we will get the results as we want them like -4, +2 etc. I prefer shooting directly at the slab without using a pole ⬇️⬇️
So level first and then boxes and start marking columns as we go. As always communication is the key so we should know what columns will go first and these we will mark. At this point (apart from current level drawing) we should have at least a next level GA drawing so we can determine each column & wall heights. We will be marking lines on the concrete and write the height. Once all is marked we quickly check if the starter bar cover is right ⬇️⬇️
Why the as builts are so important. Firstly the as built will show us if anything is missing and if not, if it’s within tolerance. If any mistakes are picked up early at this point it will cost much less, or even nothing. Where there is hundreds of balconies to be manufactured if there is a few to be changed to suit, it is not a problem and might be done even for free, but if the balcony comes ready and won’t fit I don’t have to tell you how much it will cost adding delays to it. If missed boxed are found we need to make sure core drilling will be booked before pipe fitters start ⬇️⬇️
Trust me guys I know it’s difficult and we are always short of time, but these things are really important and if it’s too much for us we need to speak up.
0:00 Intro
0:20 As built survey
0:55 Slab level check
1:19 Cast in items check
1:50 Setting out
2:30 Columns height
4:42 Why as built is so important
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