A standard residential door lock engages at a single point on the door frame, which concentrates the holding force at one location. Under sustained hurricane wind pressure, a single-point lock allows the door to flex at the head and sill, which can create gaps that admit wind and water even if the door itself does not fail. Multi-point locking systems solve this by engaging the door to the frame at the top, bottom, and both sides simultaneously with a single handle operation. The distributed engagement prevents flexing and maintains a tight seal across the entire perimeter of the door.
Haven Home Remodeling Group specifies multi-point locking hardware on every impact entry door and French door installation in Pembroke Pines. The hardware integrates with the impact-rated frame and is included in the product’s NOA certification, meaning the lock, the frame, and the door panel are tested and approved as a complete assembly. Haven’s installers adjust the strike plates and engagement points during installation to ensure the lock operates smoothly and the seal is uniform. This adjustment is verified during the Broward County inspection.