Thanks @wgt52
I agree with you on option 2, but this seems to be the most common way the DPM is finished. Many seem to lay a flat DPM up to the wooden formwork prior to pouring the concrete and not return it up the side of the slab.
I am having the workshop built by a company and it will...
Any help on this would be most appreciated; I have spent the past couple of weeks scouring the internet for a definitive answer on how to best finish the DPM on a concrete slab/plinth prior to the workshop being constructed this coming Monday.
Base is exact size to match the wooden workshop as...