I have found over the years, that if you do something right, you do not have to do it over. We did this job 'by the book' and it backfired on us.
The house is more than 100 years old, built by a pioneering family in the Bradner area of the Fraser Valley. We have re-decorated this home a number of times, for the Grandmother, and when the granddaughter took over the house, we re-wallpapered in a bit of a country theme. The grand old house is on a farm so that is OK.
The walls had multiple layers of wallpaper from way back, so instead of stripping the multiple layers, we decided to apply a super-adherent primer which is recommended for such things. We let the paint cure and then proceeded to hang the latest paper.
Over the next year or two, with fluctuations in temp. and humidity, the paper began to loft off at the seams. We were called back and I was surprised. We get maybe one callback every 10 years.
We discovered that the paper was not hanging on anywhere, but would flick off with the greatest of ease. The worst paper was the bottom below the border chair rail. Andrew peeled it back and taped it to the wall. He then applied a different primer, re-glued the paper, and we have not heard back, but I think it worked.
It is disheartening, to say the least, when you see your hard work falling to the floor of its own accord. I still think there was a problem with the manufacturer's adhesive on the pre-pasted wallpaper.