Waterproofing

The two major activities today were to finish the CMU wall and to install the Blueskin waterproofing membrane and insulation.  Blueskin is adhesive waterproofing membrane product that Mike Holmes, among others, has been recommending and using for years.  Glad we are able to incorporate it into our build.

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.