Next step is to beginn with the building of the roof.
You have to build four brown rectangle to a big wood. The first four woods are on top of the last row of stone blocks. The other ones are rotated by 45° in both directions of the z-axis. Five of them in the one direction and 5 in the other direction. Then every two woods rotated in different directions have to cover each other on the top. That is for the piek. Then you have to set them on top of the four woods on top of the stone blocks. Pay attention to the position of the piek. The piek has to be in the middle of the house.
I know there are some blocks lost. But I had no time to fix this.
This is the file to load the actual building: https://drive.google.com/file/d/0B1zC0qGiWz40ZkdWa1RMSVpoY28/edit?usp=sharing
Give comments and share, please.