High rise window vinyl

[jkdbjj]

Curious what others are using on high elevation window graphics (20-40 stories up) mounted outside the glass.
Certain vinyls tend to melt after the sun gets to it after to long.
Some are a pain to remove when the project is over.

Photo Tex has been good to work with to resolve some of these issues.
Anyone else have a product they prefer in this case?

Many will think window perf would be good but it too has melted and caused issues.

Thanks

 

[CanuckSigns]

I got a sample of this material
http://www.drytac.ca/viziprint.html
its unlike any material I've ever seen. The adhesive is like a super strong static cling and the media is very ridgid, super easy install!