Wallpapering

Preparation of the surface under the wallpaper Exterior walls and the life of the wallpaper, is largely dependent on the state of the surface on which wallpaper will be pasted. Therefore, prior to wallpapering the surface must be properly verified. Preparation of the surface under the wallpaper Exterior walls and the life of the wallpaper, is largely dependent on the state of the surface on which wallpaper will be pasted. Therefore, prior to wallpapering the surface must be properly verified. If the surface is wet, it can be seen by the dark color of concrete when it is cleaned. Check for moisture content as follows: the wall with adhesive tape attached a piece of film. If the surface is wet, the dampness comes through in the form of condensation on the reverse side of the film. When moisture Wallcovering unacceptable. If you do not remove the causes of excessive moisture walls, then produce a decorative finish meaningless. Damage to walls from moisture is determined by the following symptoms: - loose wallpaper - plaster, loose as a result of crystallization of salts or treads - the freezing of water penetrated inside it - a loose masonry exterior walls - mold on the walls - peeling paint and plaster Once identified the causes of increased humidity, it is necessary to eliminate them before they begin to prepare the walls for pasting wallpaper. Check the surface hardness is carried out by scratching the walls with a hard object. In this case, the site of application should not show scratches delamination. Also, if you wipe the surface of the wall by hand, then his hand should not remain a white plaque. Chalky residues should be thoroughly washed off the wall. Old peeling wallpaper must be completely removed, rinse the remnants of glue and paper waste (if it was stuck under the old wallpaper). This typically use a putty knife or scraper and warm water to dilute it with detergent. For a quick disintegration of the old wallpaper, you should cut them in several places with a spatula or spiked roller handle, a wire brush or abrasive paper. If the wallpaper is very thick, like a heavy vinyl, then use carborundum grinding wheel, which is placed on the drill. After that, the wall causing a special primer containing solvents. In order not to damage the plaster under the wallpaper, then you can apply the solvent (a special liquid to remove old wallpaper) using the spray between the wall and wallpaper, tilting the top edge of the wallpaper. Now a lot of wallpaper comes with a special bottom layer (the so-called exfoliating wallpaper), which are very easily removed from the walls, while the bottom layer remains on the wall and it glued the new wallpaper. Remove any wallpaper should be top down. Large cracks need to strengthen the special synthetic fabric with elastic sealing mass. If the surface of the walls - it is plaster, it needs to be sanded and apply primer or protective, or deeply penetrating. Gypsum boards must be covered with protective primer, strengthening pre-sealing cloth. Too smooth plates to cover the pre-contact primer. Particle boards also need to cover the pre-protective primer. Remnants of the old dispersion of paint or varnish should be checked for strength. If you paint a solid, the surface must be completely free of dirt, then glossy surfaces should be roughened by alkalization or by grinding, and minor defects putty. This kind of fragile bearing surfaces should be strengthened appropriate primer. Loose latex paint or varnish must be completely removed, then clean the surface with water and primed. If the walls are covered with peeling paint or silicate mineral, it must be completely removed by washing, then wash the surface with water and then twice primed "Nasyrov. If these types of paints are durable, then the wall should only be free of dirt, and the damaged area to handle, and is recommended to paint and plaster only silicate composition. The ability of the wall to absorb water is checked by wetting the surface of the water. If the surface is not absorbent, the water is repelled from the wall. In this case the wall must be treated Rough grinding. If absorption is too great, the water in the spray is rapidly absorbed, and the wall in this place dark. In order to wallpaper paste is good enough, for many species require a so-called substrate (waste), especially for thin wallpaper. Previously, as a substrate used in conventional newspapers, and now there is a special roll of brown paper from waste paper, which is glued, as conventional wallpaper. Wallpaper used for heavy thick substrate. Glue backing is recommended on the wall horizontally, so the junction of the substrate will not come into contact with seams vertically glued decorative wallpaper. Begin gluing the substrate is recommended from the top corner of one side of the room. The substrate is cut into the cloth length equal to the length of the wall, with a margin of approximately 12 mm at the corners for entry to the next wall. Dry substrate should be pasted at least 24 hours before it will be pasted wallpaper. Recommendations for wallpapering Before gluing a must to check all the rolls of wallpaper: there is among these rolls with a different design if they have the same reference to the color and number matching. You also need to check the number of rolls. Read the instructions embedded in the rolls of wallpaper, and to follow special instructions, if any, are to be glued on a certain kind of wallpaper. The first thing to treat the ceiling, if necessary. When a small square room pasting the walls start from the window, when a large area - from the largest element of the premises, for example, fire, etc. Check out the bonding is necessary in the place where the intersection of the two surfaces will be less noticeable over the door in the corner behind the fireplace in the distance from the window in the place where the curtain will hide the joints or in the corner, where it will remain high furniture. It is necessary to measure the desired length (height of the wall), while leaving the stock 50 mm top and bottom for final fitting and cut rolls on the cloth. Before you cut the wallpaper, it is necessary to pay attention to marking symbols, which are available on the insert (instructions) embedded in each roll of wallpaper, namely, the rapport. May be the following options: - if not adhered to customize image (wallpaper without the pattern and glued without fitting) - drawing a line (do not fit the pattern, wallpaper glued without a significant shift for - match the picture) - shift adjustment (adjustment of the drawing, ie E. Follow-up cloth glued to the vertical shift relative to the previous one) - Counter Sticker (inverted stamping, ie each of the subsequent canvases glued to the opposite direction relative to the previous one) sometimes indicate the ratio of the displacement pattern in the figures, eg 56/26, 5 (in this case report and offset are adjusted in cm, in accordance with these figures). Thus, the length of the cloths at the wallpaper with a large figure should equal the height of the wall plus a rapport. Cloth cut with scissors or a special knife for cutting wallpaper. If the surface is uneven, the first panel is cut so that after gluing a small strip of land went up at the ceiling. Before cutting off the following banners, you need to paste the first segment as described above, in order to be able to see how much must be left to all subsequent identical cloth. Since only a few walls, windows and doors do have a direct and correct form, it is always necessary to do the vertical lines using a plumb line. Used to glue the kind of glue that is recommended by the manufacturer of this type of wallpaper, for example vinyl wallpaper is recommended to use adhesives that contain a fungicide. General form of glue depends primarily on the weight and density of wallpaper. To obtain the correct proportions of glue, you must follow the guidelines specified in the instructions attached to this sheet. The heavier the wallpaper, the thicker should be the glue. For the simple wallpapers used glue from corn or maize starch, diluted with water. For the special wallpapers and special surfaces, a special wallpaper paste, which contains a synthetic resin powder, which increases tack and prevents mold. Best glues dispersion adhesive, which is used for working with thick fabric and metallic wallpaper, and is also used as a supplement to other kinds of wallpaper paste. After preparing the glue, to leave it for about 30 minutes to swell. Adhesive is recommended to thicken as it can always be diluted with water to desired consistency. Cut the cloth laid out on the desktop, face down and with a brush glue evenly on the wallpaper from the middle to the edges. You must completely cover the surface of the cloth. Then, in order to better soak the glue, wallpaper stack up as follows: from the bottom - toward the middle, and from the top - to the middle, missed surfaces inside, or by type. After this wallpaper left in such a way to soften for several minutes. (The thicker and heavier than the wallpaper, the more time they need to soak). All banners should be impregnated with the same amount of time. After impregnation, the first panel is attached to the wall, according to a vertical layout, tightly pressed and smoothed, first at the top using a brush with soft bristles in the direction from the middle to the corners, to avoid bubbles, wrinkles and folds (if wallpaper smooth - you can use a rubber roller to smooth the seams, but if this wallpaper high embossing or relief, you can only use a brush, a light slap, dock joints). Then, in the same way smoothed the lower part of the cloth. After sticking a panel, the speakers at the top and bottom edges of wallpaper, cut with a knife. As a ruler can be used straight spatula. Adhesive residues must be removed immediately with a clean damp cloth. The next panel is glued as well as the first, either butt or overlap, given the rapport (connectivity pattern). For a beautiful interface krupnorelefnyh and foamed vinyl wallpaper using the method of "double slit". For cutting overlapping use a sharp knife and metal ruler. It should be hard to squeeze a ruler to cut the thickness of two layers of wallpaper. Then you need to delete a scrap, raise the corner of the cloth and slowly remove the remaining cut piece from the wall. Need to use a knife and a ruler at all sites that are not tailored to the end. Finally need to connect the corners of panels together and glue them, using, if necessary, a little glue. On the outside corner of wallpaper glued in the same manner as on the inner side. There are also so-called self-adhesive wallpaper, already have a layer of dry adhesive on the back side. In order to affix such wallpapers, you must prepare a container of appropriate size, which should pour cool water. After this panel rolled adhesive to the outside (free to the adhesive layer is in contact with the front surface of the wallpaper) and dipped in water to activate the adhesive, while on the surface of the strip must be left for air bubbles. The water panel is necessary to sustain a few minutes (the exact amount of exposure time of self-adhesive wallpaper is indicated in the instructions to the wallpaper). After wetting the wallpaper should be left to time to absorb moisture (the time must also be specified in the instructions). Water should be changed every three or four banners. Glued to the wall such wallpaper should be the normal way. If the formation of wrinkles when applied, then under the wallpaper came airlock. In this case, you should carefully peel cloth, apply glue to it again. If, however, and after that the bubbles do not disappear - it means that the wallpaper is not sufficiently impregnated with glue. Wrinkles disappear after drying. When pasting room wallpaper should avoid extreme heat or drafts. Best wallpaper dry at room temperature, while the seams are not at odds. Wallpapering the ceiling on the ceiling wallpaper glued along the ceiling and before they are glued to the wall. Encouraged to work with an assistant, who would support a strip of wallpaper, and unwound it as sticking, in order to achieve a more even wallpapering. First, the ceiling line is drawn at a distance from the toe wall and ceiling, equal to the width of the roll. Then, on the cloth wallpaper glue is applied, the usual way. Then, with the help of an assistant, wallpaper on the ceiling begin to stick. Necessary to make the stock 50 mm at the site of contact with the end wall and a margin of 12 mm at the site of contact with the angled wall. Destinations sticking checked by a line drawn by. When all the cloth is glued, you must check for the presence of wrinkles and loose, because it is important that the first panel laid flat. Following the flag stick consistently with the setting on the wall, leaving a margin of 12 mm. Heavy paper wallpaper and vinyl wallpaper paste krupnorelefnye without calling on the wall. Smooth cloth brush with soft bristles. Pasting wallpaper borders There are many different types of borders, including self-adhesive, so be sure to read the manufacturer's instructions, before starting to glue one or the other curb. It is recommended to use a special vinyl adhesive when applied curbs on vinyl wallpaper. Borders can be pasted as along the ceiling (upper limit of wallpaper border), and in the middle of the wall, and can also serve as a trim for windows, doors, etc. In any case, there are two possibilities stickers borders: exfoliating wallpaper notch, then the top layer removed and the border is glued to the bottom layer of wallpaper in the case of the need to curb can be glued directly to the wallpaper. If the border will not be glued along the ceiling, using a ruler to draw a straight guide line. In place of the joint borders the method of "double slit", after which excess adhesive removed with water using a clean sponge. All of the above recommendations are common to all the wallpaper, but in each case it is best to use the special instructions, which are attached to each of the rolls of any type of wallpaper, as each of them there are some special features. Source: Site of "All for the repair and improvement"