How to Wallpaper

Download the Wallpaper Advice.pdf printable version.

Wall Preparation

Recently Painted Walls:

These require from 3 weeks to 3 months to cure depending on the paint type and weather conditions. If the paint has not cured sufficiently, adhesion of the wallpaper may not occur. Some modern formulated, non stick paint surfaces with additives such as Teflon, will need to be sized for the adhesive to work effectively. Waiting for the paint to cure is a MUST for these types of paints.

Prepasted Wallpaper

Requirements:
  • Water trough
  • Sponge
  • Pencil
  • Sharp adjustable blade knife
  • Straight edge ruler and or spirit level
  • An old sheet or similar object to protect your floor.
Steps:
    1. Ensure the surfaces are clean, smooth and dry.

      • Always check the manufacturers instructions before starting.
      • Carefully examine your wallpaper for proper colour, pattern numbers and consistent run or lot numbers.
      • Allow for fresh paint to cure before applying the border.
      • For professional results it is important to prepare the surfaces to be decorated.
      • Ensure surfaces to be decorated are clean and dry.
      • High gloss and semi-gloss paint finishes should be sanded in order for adhesive to grip. (80 grit sand paper).
      • A coating of wall size should be used. This will assist in the easy removal for borders and wallpapers when redecorating.
      • If applying wallpaper over new wallcoverings, make sure the wallcovering is completely dry.
      • If applying over vinyl wallcovering, you must use water based vinyl-to-vinyl wallpaper adhesive after immersing in water.

 

  1. Draw a line as a guide.

    • If you have no edge to work to, use a level and draw a pencil line as a guide for the bottom of the wallpaper.
    • Measure the length of wallpaper you wish to adhere for each repeat of the process and pre-cut a sufficient number of these lengths to complete the room.
    • If two people are on the job longer lengths can be applied and the number of joins is therefore reduced.
    • When working out where joins will appear it is better to go around internal and external corners where possible.

  2. Wet wallpaper and apply.

    • Re-roll the wallpaper with the pattern side in.
    • Immerse the wallpaper in lukewarm water by dragging it under the wire in the trough.
    • Any section should be in the water for no more than 30 seconds.
    • Unroll wallpaper as you remove it from the water making sure every part of the paste is wet.
    • Loosely fold with the pasted sides together in a concertina style for easy handling.
    • Check the manufacturers instructions for curing times and to ensure the correct adhesive is being used.
    • After applying additional wallpaper adhesive refold pasted sides together.
    • Unfold and apply following the level line.
    • Wallpapers have "slip", so you can gently slide it into position.
    • Smooth wallpaper and wall surface with a damp sponge.
    • Wipe away the excess paste and water as you go.
    • When a second or further roll is being adhered, over lap a small section of wallpaper with the one already on the wall.
    • Finish applying the remaining of the concertina border as described above and then complete the join as follows.

  3. Finish off joins.

    Where there are two overlapping sections of wallpaper the excess is removed as follows:

    • Place a ruler or straight edge so that is runs vertically on a section where the wallpaper overlaps.
    • With a sharp cutter knife, cut along the rule, applying enough pressure to cut through both strips. Remove the excess paper on top and underneath.
    • Remove any excess paper using a sharp cutter knife being careful not to tear any wallpaper that is damp with water and paste.
    • To mitre corners: overlap strips, one on top of the other. Place a ruler or straight edge so that it runs from the inside corner to the outside corner. With a sharp cutter knife, cut along the rule, applying enough pressure to cut through both strips. Remove the excess paper on top and underneath.

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Unpasted Wallpaper

  • Follow steps 1-2 in the Prepasted Wallpaper section above. That is, ensure the surfaces are clean, smooth and dry and draw a line as a guide.

  • Next lightly and evenly moisten the back of the border with a damp sponge. Check the particular instructions for more information. Ensure all sections are soaked for the same period of time.

  • Now unroll the wallpaper and apply the paste evenly using a soft brush. Loosely fold with the pasted sides together in a concertina style for easy handling.

  • Now refer back to the Prepasted Wallpaper section 4. Finish Off Joins, for the final instructions.

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