On top of it is the 2" EPS Type II insulation board. It is attached to the membrane using construction adhesive so as not to create penetrations in the membrane.
The final layer (Miradrain dimpled drain board) will be installed tomorrow or Saturday depending on when they're able to dig for and lay the footing drains and gravel. It gets installed using nails but the nails only penetrate an inch or so into the foam board only.
So, the layers in order are:
- concrete wall
- waterproofing primer (dark red)
- Blueskin membrane
- insulation board
- Dimpled drain board
- backfill
The plumber will most likely begin groundwork tomorrow.
