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