Help with mono pitch roof carport.Dangerous or not?

[Bouba]

I have build a lean to roof( mono pitch roof) at the back of my house for a car port
Please could someone confirm if this is done correctly, or have i made the structure dangerous.

Wall plate for the rafters ( 6x 2)
Rafters ( 6x2)

The total roof length and width is 4x4 metres.

The bottom of the raters are sitting on a 6x2 bearer which is supported on one end on a house wall, and the other end on 2 x 4x4 timber posts joined together.These posts sit in a metal shoe which has been encased in a concrete and is above the ground to protect it from rot.

I have battened the roof and laid some clay roof tiles( approx 400).
My worry is regarding the roof rafters as there is no horizontal ceiling joists to tie it to.If you look at the roof from below you are looking at the pitched rafters.I intend to put some 9mm plywood on this to make it more rigid.

My worry is only the forces on the roof and lateral movement which can cause the roof to fail.Any suggestions please as to how this can be rectified.
Thanks.

 

[sircerebus666]

Pics?

 

[23vc]

The ceiling joists preventing roof spread thing applies to duo pitch roofs rather than lean to. Vaulted lean-to is fine in theory.

 

[^woody^]

If properly restrained and on seat cuts on both plates, the rafters will be fine

 

[oldbutnotdead]

You might want to think about some noggins between the rafters (to prevent them rotating on their long axis) but apart from that think you'll be fine.