Paint the whole room with a wall primer sizer.
Hanging wallpaper on painted walls.
As you do check for defects.
Align the top edge of the border to the drawn line and press the border to the wall starting with the left corner.
Priming promotes adhesion making it possible to hang on difficult to stick to surfaces like glossy painted walls.
Begin hanging the wallpaper at the top leaving two inches extra for trimming.
Make an indentation with the scissors at the top and bottom joints where the wallpaper should end then cut off the excess.
The best techniques for hanging wallpaper best wallpaper techniques overview.
Prepare the border paper according to the manufacturer s instructions.