A secondary water barrier is an added waterproof layer installed beneath your shingles to protect your home if shingles are damaged or blown off during storms.

In Florida, this upgrade is highly valuable due to hurricane risk.

Why It Matters

During high winds, shingles can lift or detach. When that happens, your roof deck is exposed.

A secondary water barrier keeps water out even if the top layer fails.

Common Types

• Peel & Stick Underlayment

• Sealed Deck Systems

• Foam Adhesive Systems

Insurance Benefits

Many insurance companies offer wind mitigation credits when a secondary water barrier is installed.

Why It’s Smart

In hurricane-prone regions, this added layer can prevent catastrophic interior damage.