What is one common reason for deck collapses in residential buildings?

Ledger board separation is a critical issue that can lead to deck collapses, as it involves the connection between the deck and the supporting structure of a building, typically a house. The ledger board is the horizontal board that attaches the deck to the wall of the home, and if this connection is compromised, the entire deck can become unstable.

Over time, improper installation, rot, or corrosion can weaken the ledger board's attachment, leading to its separation from the home. When this happens, the deck may no longer have adequate support, making it prone to bending or collapsing under the weight of occupants or furniture. This scenario highlights the importance of proper installation and regular maintenance of deck components to ensure safety.

While other factors like poor drainage, under-designed support, and defective materials can contribute to deck safety issues, the specific concern of ledger board separation directly ties to the structural integrity of the deck in relation to the house. Understanding the role of the ledger board is crucial for ensuring that decks remain safe and reliable structures.