house wrap

House wrap is a breathable, water-resistant sheet applied to the exterior of a building’s framing before siding. Its primary purpose is to prevent moisture from penetrating the walls, which can cause mold, rot, or structural damage. At the same time, it allows water vapor inside the house to escape, preventing condensation buildup. Think of it as a protective barrier that keeps rain and dampness out while letting the wall breathe. Properly installed house wrap enhances energy efficiency by reducing drafts and helps maintain a healthier, more durable home environment.