How To Best Lay Wall/Roof Sheets?

What would you say is the best way to go about screwing down wall sheets?

To get them square. And fitting good - so's the overlap is good, makes a good join ?

If they are laying down. If the wall is on the ground, to be stood up later ?


Start from the back end or the front end ?

Put one screw in each sheet right down the middle ( along the middle wall girt ) first? Or a top girt screw or a bottom girt screw first?

Then finish one sheet - put in all the screws - before going to the next or do one whole row - a top or a bottom row - before doing the other? (say there's only three rows, only three girts).

Doesn't it matter? Will you get about the same result whichever way you go?


Anyone do this sort of thing regularly? What do they find to be the best way?










Point is if they're laying down they won't hang down by gravity and straighten themselves up that way.


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