Bill Brown said it won’t leak.
Strengthening the Membrane
Given there were a couple areas exposed where the white Grace Preprufe 160R could have weaknesses, Bill Brown consulted with the Grace technical resources to confirm what should be done.
Grace advised him to apply a bituthene coating over the seams and to any areas where the membrane appeared to be weakened. Also, they recommended that additional bituthene be applied around any penetrations of the membrane (e.g., utility conduits, plumbing, etc.).
After addressing the waterproofing, the insulation can be put up and then the Miradrain.