DPM external corner detail

[browfish]

I have been installing my DPM which i have done before on other projects, however this time i have an unusual shape. It is a squashed 'T' shape which means that as well as having 4 internal corners which can easily be pleasted, it has 2 external corners. I have read threads about simply cutting the corner and overlapping a peice of DPM behind however surely this leaves a point at base of the corner that is breached (see sketch below). Can someone please confirm this detail.
Thanks

Untitled

• browfish
• 9 Jun 2012
• 1

 

[freddiemercurystwin]

Just use a pre-formed external corner cloak.

 

[^woody^]

Can't you just fold the polythene around the corner?

 

[browfish]

I can but only down to ground level, there for there this the point at the base of the external corner that is still breached.