Timber Pinch Battens

[LA3222]

I'm currently putting some 47x50 timber battens around the window openings to close the cavity around them. I've offset them by 10mm so I can stick some aerogel insulation there which I have left over to help with thermal bridging.

 

My query is should I cover the face of the battens with some DPC in order to mitigate water potentially coming through the blockwork?

 

I seem to recall reading this somewhere which is why its bubbling at the back of my mind but cant find an answer anywhere so wonder if I have misremembered?

 

[Russell griffiths]

I would, you used to when you closed the cavity with a block, but now most of it has changed to plastic cavity closers

i think any chance of moisture bridging should be avoided. 

Edited May 6, 2020 by Russell griffiths