Does this detail look ok?

[flanagaj]

I want to simplify the installation of the Radon membrane and if I can do the below, eg run the lower DPC under the inner leaf and across the cavity and then up the inner face of the outer leaf.  If I can go with this approach, it completely negates me having to use pre formed door openings OR having to try and bodge it together.  The only required detailing will be the 4 corners.



The standard Visqueen detailing is shown below, but if you go with this approach, then you have to mess around at door openings.  I just want to avoid as many taped joints as possible.

[Mr Punter]

Why have you lapped it up the brickwork?  Just leave it flat.

[Russell griffiths]

As @Mr Punter said lay it across the full width and build up from that. 
if you had of brought your concrete up higher you could have just laid it flat across that. 

[flanagaj]

1 hour ago, Mr Punter said:

Why have you lapped it up the brickwork?  Just leave it flat.

Because it’s a Radon barrier and has to span the cavity

[Mr Punter]

1 hour ago, flanagaj said:

Because it’s a Radon barrier and has to span the cavity

 

So can't you do this?:

 

[JohnMo]

Your white  blocks make a nice cold bridge. Just replace with thermolite or similar and it's gone.