I have used an Epson adhesive vinyl roll. The back just is peeled off and then stuck to a wall. It can be peeled off without damaging the paint. The wall needs to be clean and humidity can be a problem. It is a nice surface to print on. It is sharp, but not as sharp as photo papers, but holds plenty of detail. Hanging a 44" x 144" vertical is so much easier than a 44" x 144" horizontal--you stick a leading edge (straight) and then remove the backing as you stick the rest of the image by unrolling the print. Keeping air out is really important. And getting that flat and true at the beginning is important and tricky. Fortunately, buckles in the vinyl flatten right out once against the wall. The wall texture will be seen, but the surface is flat and viewers really don't notice it, but you will need a good wall.