Composite door and sidelight joint

[jackg]

I installed a Truedor and a sidelight using the supplied steel coupler to join them.
The sill holds the two parts fairly well at the bottom but they move at the top.
Not sealed yet and will use expanding foam.
https://www.flickr.com/photos/67356568@N05/39600655101/in/datetaken-public/

Thoughts are to drill into the steel lintel above and use 75-80mm self tappers or rawlplugs if drilling into the stone above. Or wondering if the foam will fix them?

The instruction do not include sidelights but it states to securely fix on the latch side by the locking pins and lock, which cannot be done as well into the sidelight as the wall. Haha.

Any ideas folks?

 

[Gazman16]

Always a top fixing when you have a sidelight.
Just one in the head of the door 150mm away from the corner will do it.

 

[jackg]

Thanks for the advice, this is what I did.