UV tiling to fill face?

I have a mesh and uvs that I generate, and I want it to tile vertically and fill the face, but instead it turns out like this

http://i.imgur.com/9NjTHQF.png

Here is my code

         for(int i = 0; i < topUvs.Length; i++){
             if(select == 4){ select = 0; }
             switch(select){
                 case 0: topUvs[i] = new Vector2(0, 2); break;
                 case 1: topUvs[i] = new Vector2(0, 0); break;
                 case 2: topUvs[i] = new Vector2(1, 2); break;
                 case 3: topUvs[i] = new Vector2(1, 0); break;
             }
             select += 1;
         }break;

The code i have for assigning the uvs has seemed to work, but I think there is something that i am missing that i need to do to make it tile the way i want.

Thanks!