Adding the word 'front' to projectors is common, but is really a mistake. Most people associate RPTV with those all-in-one boxes that contain a projector, screen, and some mirrors inside to get the image up. Projectors can be setup four standard ways for almost all projectors in the world: Table mounted front, ceiling mounted front, table mounted rear, ceiling mounted rear.
There are some serious advantages to going rear projection and some serious drawbacks.
The biggest advantage is that the room you are in does not have to be nearly as light controlled as with front projection. You can get very good results and maintain a high level of contrast with a fairly well lit room.
The down sides?
1. The room the projector is in must be dark. Not a big deal if this is a storage room.
2. Rear projection passes through a screen surface and can cause a bit of a ghosting effect when it hits both layers it passes through.
3. Rear projection tends to look just a bit less sharp overall due to passing through a material instead of bouncing off the surface of a material.
4. You must have enough room behind the screen to throw the rear projection image.
Some of those 'down sides' are more like cautionary notes. If you have the space and a dark room for rear projection, then the final result can look almost as good as front projection in a very dark room.
FYI: All major screen manufacturers including Carada, Stewart, and DaLite offer rear screen projection materials. Check their websites!
