essexandy
The Lake Governor
Firstly check the wall for plumb (upright) and straightness.
If the wall is plumb and straight then use a chalk line to put a line on the ceiling about 23mm out from the wall for 12.5mm board.
Now plumb down from the ceiling line to the floor at both ends of the wall and using the chalk line again put a line along the floor.
If the wall is out of plumb one way or the other either your ceiling line will need to be further out on the ceiling or your floor line will end up further away from the wall.
Now apply your adhesive at the correct spacings according to the size and thickness of the boards you are using (correct spacings can be found on BG or Lafarge Websites).
Push a board onto the adhesive and using a straight edge tap it back until it is in line with both the ceiling and floor lines you marked earlier and is straight within it's length.
If you work your way along the wall making sure that each board is along the floor and ceiling lines and in line with the previous board you will end up with a straight and plumb wall.
This is the method recommended by Lafarge and is very easy to do.
If the wall is plumb and straight then use a chalk line to put a line on the ceiling about 23mm out from the wall for 12.5mm board.
Now plumb down from the ceiling line to the floor at both ends of the wall and using the chalk line again put a line along the floor.
If the wall is out of plumb one way or the other either your ceiling line will need to be further out on the ceiling or your floor line will end up further away from the wall.
Now apply your adhesive at the correct spacings according to the size and thickness of the boards you are using (correct spacings can be found on BG or Lafarge Websites).
Push a board onto the adhesive and using a straight edge tap it back until it is in line with both the ceiling and floor lines you marked earlier and is straight within it's length.
If you work your way along the wall making sure that each board is along the floor and ceiling lines and in line with the previous board you will end up with a straight and plumb wall.
This is the method recommended by Lafarge and is very easy to do.