French doors - how far to set back

[angel1058]

Hi

Fitting 3x 4 panel French doors. 2.4m wide. Do these fit (almost ) flush with brickwork or do they need to be recessed? Can’t find anything definitive. LBC are inside with everything I’ve done up to now ( no small thanks to this forum! ) and would like the doors to go as well. No dense as I’ve made the doors and the glass is A rated. All the U values are good - it’s the physical fitting I need help on.

Thanks

 

[^woody^]

Frames should cover the vDPC, so that no part of the external leaf is on the room-side of the frame

 

[angel1058]

that’s the bottom of the frame ( I think you’re referring to ). The side frames, I have cavity closures - but can I fit the frame flush to the front of the outer leaf or do I need to set it back? Maybe a drawing or two would help decipher my waffle - will post something…. Thanks woody.

 

[^woody^]

I referred to the vDPC which is normally up the reveals.

 

[^woody^]

 

[angel1058]

VDPC - vertical DPC? Surely not . That really helps - thanks woody.

 

[jono_h]

I’ve seen a couple of references to a 30mm overlap of the cavity.

https://www.labcwarranty.co.uk/hubfs/Technical%20Manual%20v10%20Files%20and%20Images/Manual%20Sections/Section%208%20Windows%20and%20Doors.pdf