Wall plate sitting on lintel

[Bonner]

9 hours ago, Brickie said:

A bit like this? 
Ive no idea on the engineering/design practicalities but it seems you’re having headaches solving the lintol/depth issues & at the same time losing height & light from your window. 

 

Technically, it will work but significant change from the planning drawings, don’t think this will get through a NMA

[Bonner]

Just an update to this thread in case it helps anyone else in a similar situation ...

To get the wall plate to sit low over the windows, SE approved a 65mm concrete lintel over the cavity wall lintel (1250mm opening).

For the 3m opening, we had to get a steel beam made with extended bottom flange to carry the wall plate.

The truss manufacturer agreed that the builder can trim as shown and screw plywood plates both sides.

Quite a simple solution in the end but a few sleepless nights as a result of poor communication and lack of diligence in checking things.