Wed, 29 Apr 2026 23:48:45 +0000

You Won’t Believe What This Drill and Hammer Can Uncover Beneath Cardboard Walls When it comes to exploring the hidden layers of your home, most people assume it’s drywall, insulation, or old furniture behind the walls. But what if I told you that a simple drill and hammer can reveal surprises you never imagined—secrets buried behind cardboard-like surfaces inside walls? ### Why Cardboard-Like Structures Exist in Walls In older homes or renovated spaces, cardboard-like sheets are often used as temporary barriers, vapor retarders, or insulation liners. Sometimes they hide within walls where drywall was installed over older plaster or in tight spaces where modern materials are tightly packed. These layers aren’t always visible—and unless you drill into them, you’ll never know what lies beneath.