Do the decals work if they are placed on inside of the window?
The decals are approximately 25% as effective when attached to the inside of the window. When placed on the inside, this limits the effectiveness of the UV reflective coating. The decals are designed to work on the outside of the window. One of the things the decal does is to break up the expanse of the glass surface when on the outside. This does not occur when the decals are placed on the inside of the window.
