Before Pasting Wallpaper, You Need to Clean The Working Surface: Remove the Old Coating and Treat with a Disinfecting Solution. IF Necessary, Align the Surface of the Walls with A Cement Mortar, A Construction Spatula and the Construction LEVEL. The Glue IS Applied with A Brush or A Roller on the Canvas (Flip Side), Which is Immediatly Glood to the Wall. ImmediaTely You NEED to SMOOTH The Canvas and Remove the Air from Under IT. This work is Performed Using a Clean Roller and Construction «Butterfly». The Next Canvas is Glood to the Joint. At the end of the work, Glue the Ceiling Eding with the Same Glue.