Joined: July 2004
||Posted: 01 June 2017,10:32
Have a read of the screeding page and especially the video. Note how wider areas are split into smaller bays and rails are used to cary the screeder board at the correct level.
Let's say your driveway can be split into 3 bays each not more than 3m width. These bays run longitudinally - up-and-down the drive, not side-to-side. So, standing on the public footpath, the LH bay has a edge course and a rail, the centre has two rails, and the RH is a rail and an edge course. So, as you can see, there are just two screed rails to set-up.
At the two positions where a screed rail is required, pull a taut string line from the edge course at the lower end of the drive closest to the house right up to the threshold edge course at the footpath, and use that line to establish the screed rails as shown on the aforementioned page.
By splitting the driveway into 3 bays, you not only make it much easier to screed the laying course, but you are creating intermediate levels that will help deal with the changing gradient.
You could, if you wish, screed downhill, from top to bottom, but you MUST lay uphill, from bottom to top, to minimise block creep.
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