When moving into an older home finding remnants of previous occupants wallpaper isn t uncommon.
Wallpapering over vinyl wallpaper.
Vinyl is nonporous so new wallpaper will not stick to it and adding a layer on top of it will create mold.
You must make every effort to remove vinyl coated wallpaper first.
Otherwise perform the same steps as if you were painting over your wallpaper.
Unfortunately wallpapering over vinyl wallpaper is not an option.
The reason for this is based on the principle of adhesion.
The only wallpaper that is nearly guaranteed not to cause you residual problems if you leave it on the walls is non coated wallpapers.
You should make every effort to remove the vinyl wallpaper first before trying to cover anything.
The existing wallpaper s material.
Stripping old wallpaper is a time consuming task you.
We also recommend not wallpapering over a wallpaper that is embossed or embellished as it will create bumps.
Wallpaper adhesives stick best on porous surfaces and coated papers are known to not be absorbent whatsoever.
How to hang new wallpaper over old wallpaper.
The reason for this is based on the principle of adhesion.
You must remove it before putting new wallpaper up.
In this video i demonstrate how to hang wallpaper over existing wallpaper.