Foundation waterproofing and insulation form system and method

A waterproofed concrete wall assembly, comprising:

• a vertical wall of hardened concrete, the wall having a first side and a second side;
• and
• a plurality of boards, each of the plurality of boards comprising opposite first and second major surfaces and comprising perimeter edges between the major surfaces, and each of the plurality of boards comprising a polymer foam layer and a fibrous facer joined to the polymer foam layer;
• wherein the first major surface of each of the plurality of boards is disposed in contact the first side of the vertical wall of hardened concrete;
• and wherein at least some of the perimeter edges of the boards are shaped to overlap with shaped perimeter edges of one or more adjacent boards;
• and wherein some of the concrete is infused into the fibrous facer, the fibrous facer having been present during pouring of the concrete.