Common Waterproofing Problems – A Homeowner’s Quick‑Reference Guide** Waterproofing is the unsung hero of any durable, comfortable home. Yet many folks overlook the subtle signs that something’s wrong—until a leak turns into a costly disaster. Below is a handy snapshot of typical problems you’ll encounter on the exterior and interior of your house, plus some practical pointers on selecting the best solution for your situation. 1. Exterior Waterproofing Issues Problem Typical Causes What It Looks Like Cracked or Missing Flashing Weathering, improper installation, renovation work Water tracks