DPM External Flap - what to do with it?

[AppleDown]

Hello everyone. I’m doing a few ‘keep busy’ jobs over the next week until my crew are back on site. One of them is tidying up the DPM flaps that are hanging everywhere.

 

My build is timber frame, over blocks on slab. DPM is between blocks and soleplate as per usual - and currently extends out anywhere from 15cm to 40cm.

 

What should I do with this? Original idea was to lap it up the breather membrane on the OSB (DPM flaps cut to a uniform length first) and then tape. Is that just the standard detail?

[Nickfromwales]

10 minutes ago, AppleDown said:

Hello everyone. I’m doing a few ‘keep busy’ jobs over the next week until my crew are back on site. One of them is tidying up the DPM flaps that are hanging everywhere.

 

My build is timber frame, over blocks on slab. DPM is between blocks and soleplate as per usual - and currently extends out anywhere from 15cm to 40cm.

 

What should I do with this? Original idea was to lap it up the breather membrane on the OSB (DPM flaps cut to a uniform length first) and then tape. Is that just the standard detail?

Have you got some pics of the ‘affected’ areas?

 

Lapping it up may harbour water so we need context for some better answers   

[AppleDown]

6 minutes ago, Nickfromwales said:

Have you got some pics of the ‘affected’ areas?

 

Lapping it up may harbour water so we need context for some better answers   

Will grab some better ones tomorrow but here’s a hastily cropped and zoomed version. The buildup on top of this includes Actis BoostR Hybrid - for insulation and airtightness. So ideally the DPM gets lapped up, taped, BoostR stapled and taped, battened, and then clad / render depending on area.