Pebbly or rough textured walls are not friendly to Fatheads .
Pebbly or rough textured walls do n't go t It 's OK to put your Fathead over wallpaper but it has to be clean , dry , and smooth .
Pebbly or rough textured walls are not friendly to Fatheads so do n't go t It 's OK to put your Fathead over wallpaper but it has to be clean , dry , and smooth .