Flat roof. Wooden beams

[Benway]

Hi.

My structural engineer has specified my flat roof on my extension as below to house my 2 roof lanterns. Each "beam" is made up from 2 x 200x63 C24 timber. What he doesn't state is if these need to be connected together somehow. I would ask him but we have had a falling out (He won't recalculate a more suitable beam without charging)

So the questions is. Do they need to be connected together, and if so how? Thanks in advance.

 

[tony1851]

Yes, they should be fixed so that they work together. Clamp them together and drive some 100 screws through from opposite sides, say at 250-300 centres.

 

[Benway]

Sweet! Nice and simple for once!