It is applied to 3 sides of the slope.

We begin to perform the first stage of the insulating layer. Initially glue a vapor barrier tape. It is applied to 3 sides of the slope. We begin to perform from the vertical surface of the slope and end with the horizontal ceiling surface of the window. Do not forget to apply the limiter when gluing the bar to make a dent of the opening for a quarter. Remove the protective strip from the adhesive layer of the tape, which is designed to attach to the surface of the block. If you want to prevent the effect of moisture that comes in some way from the side of the wall, then attach the corresponding tape over the entire width without touching the protective strips. Try not to stretch the strip material during operation. Apply the ribbons to the surface layer exactly so that there are no irregularities on it. Swelling, bubbles, folds will violate all types of insulation in the room. Keep in mind that on the working sides of the seams it is not allowed to have several joints.