What we are looking for are shingles for a house. They are hard, plastic-like (or maybe a synthetic substance) shingles for the outside or a house or hut. They are for vertical surfaces like walls (they may work on a roof as well but that is not how I saw them). The color I saw was sort of an off-white almost green gray yellowy. They are held in place by a metal clip that hooks underneath the shingle and runs up behind it.
I have posted a photo of the shingles from the Ebenalp cablecar station which uses them on Flickr:
Photo of Shingle on Flickr: http://farm2.static.flickr.com/1046/800890776_b0a31ab086_b.jpg
We appreciate any help at all in finding out what they are made of, who makes them (or shingles like them), and whether we can buy/import them in the states or whether we will have to order them in Switzerland and ship (ugh!) them back to the states.
Thanks in advance--so much!