What causes bubbling or creasing on the wall after hanging?
There are generally two types of bubbles associated with hanging wallcoverings which are either due to trapped air or more seriously, continued expansion. Air bubbles can generally be identified by their shape and will show themselves as a relatively ’round’ type bubble (diameter approx 4-8 inches). These are caused when the paper is smoothed unevenly. The best way to avoid air bubbles is to gently brush the paper down the centre and then out to the edges as you work down the sheet. If bubbles are immediately identified as the wallcovering is being hung then simply lift the wallcovering from the bottom and re-brush/smooth it back down. Air bubbles will reduce slightly upon drying, but will not disappear completely. Pricking them with a needle and then attempting to brush them out after they have dried will almost certainly result in creasing. Expansion bubbles or creases are caused by continual expansion of the wallcovering and would normally demonstrate themselves as short elongated b
