How do I mesh/join blocks together?

Im making a roof and it looks like a minecraft roof, blocky and uneven. How do I fix this?

 

There's no way to mesh or join brushes, unfortunately.
However, a smooth diagonal edge could be created using the clipping tool, which seems like it may be what you're looking for.
If you're going for a more unconventional roof shape, then try using a displacement.

 

Thanks dude ill try this then!

 

You mentioned uneven roofs before, could you post a screenshot to show what you mean by this?

 

weeellll... kinda

although it's not really what youre looking for in this case.


View: https://www.youtube.com/watch?v=_oLIhII0vHs