Two main types of door dams: single-piece and tri-fold.

Single-piece dam:

• Mounted to home’s structure.

• Easiest to install and ideal for short spans.

• For spans over 50 inches, should rest on a raised threshold or floor for stability.

Tri-fold dam:

• Space-saving design; stores a 10-ft dam in 5-ft space.

• Ideal for homes with limited storage.

• Creates a tighter seal inside the door frame.

• Provides even pressure across the opening to reduce leaks.

Rubber weather stripping:

• Conforms to uneven surfaces for a tight seal.

• Enhances flood protection by preventing water intrusion.

Overall benefits:

• Flexible, efficient, and non-permanent flood protection solution.

• Suitable for varied surfaces and structural conditions.