Which side of the screen material is the front?
Some materials are black on the back, like the white and grey screens, making it very easy to determine that that is the back of the screen. However some materials, such as the silver and WAB screens, do not have a black side to distinguish from the front. In this case, the front side (projection side) of the material is the side that is smooth all the way to the pocketed edge. The back side of the material is the side that has the fold-over and seam from the pocket on all four edges.
To be clear, the edges of our screen materials are folded in order to receive the tension rods. The folded edges are folded towards the BACK of the screen and then sealed. You know which side is the back because the edges will be folded toward that side.