Problem when creating UVs coordinates

Hi everyone, I'm trying to learn how to create a mesh form scratch. I Created a C# script that render a block, but i got stuck in this part. When I hit play the mesh is rendered good, but the texture has a wrong rotation

Here the code:

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class CubeRender : MonoBehaviour {
 
 
 
     protected List<Vector3> verts = new List<Vector3> ();
     protected List<int> triangulos = new List<int> ();
     protected List<Vector2> uvs = new List<Vector2> ();
 
     private Mesh cubo;
 
 
     private float uText = 0.25f;
 
     void Start () 
     {
         cubo = GetComponent<MeshFilter> ().mesh;
 
         float x = transform.position.x;
         float z = transform.position.z;
         float y = transform.position.y;
 
         //Baixo
         CriarFace (new Vector3(x, y, z), Vector3.forward, Vector3.right, true);
 
         //Cima
         CriarFace (new Vector3(x, y + 1, z), Vector3.forward, Vector3.right, false);
 
         //Frente
         CriarFace (new Vector3(x, y, z + 1), Vector3.up, Vector3.right, true);
 
         //Tras
         CriarFace (new Vector3(x, y, z), Vector3.up, Vector3.right, false);
 
         //Esquerda
         CriarFace (new Vector3(x, y, z), Vector3.up, Vector3.forward, true);
 
         //Direita
         CriarFace (new Vector3(x + 1, y, z ), Vector3.up, Vector3.forward, false);
 
         cubo.Clear ();
         cubo.vertices = verts.ToArray ();
         cubo.triangles = triangulos.ToArray ();
         cubo.uv = uvs.ToArray ();
         cubo.Optimize ();
         cubo.RecalculateNormals ();
 
 
     }
     void CriarFace(Vector3  origem, Vector3 direita, Vector3 cima, bool revertido)
     {
         int index = verts.Count;
 
         verts.Add (origem);
         verts.Add (origem + direita);
         verts.Add (origem + cima);
         verts.Add (origem + direita + cima);
         
         if (invertido == true) {
             triangulos.Add (index + 1);
             triangulos.Add (index + 0);
             triangulos.Add (index + 2);
             triangulos.Add (index + 1);
             triangulos.Add (index + 2);
             triangulos.Add (index + 3);
         }else{
             triangulos.Add (index + 0);
             triangulos.Add (index + 1);
             triangulos.Add (index + 2);
             triangulos.Add (index + 2);
             triangulos.Add (index + 1);
             triangulos.Add (index + 3);
         }
 
         uvs.Add(new Vector2 (0, 0));
         uvs.Add(new Vector2 (uText, 0));
         uvs.Add(new Vector2 (0, uText));
         uvs.Add(new Vector2 (uText, uText));
 
 
 
     }
 
     void Update () 
     {
     
     }
 }

The rotation of top and bottom textures doesn't matter, but the sides are wrong, the green part should be on the top.
Anyone has any idea of how I can solve this ?

Sorry about the awful explanation, and the horrible english :s