Hurricane Straps, Roof-to-Wall Connections and Secondary Water Barriers

The roof covering keeps rain out. The structure underneath — deck nails, roof-to-wall connections and the secondary water barrier — keeps the roof on the house.

Roof-to-wall connections

Older homes may rely on toe nails driven through rafters into the wall plate. Newer homes use metal clips, single wraps or double wraps. Each step up scores better on a wind mitigation inspection. Retrofitting straps usually requires access from the attic or soffit and is evaluated case by case.

Roof deck attachment

On every re-roof, Florida code requires re-nailing the existing deck with 8d ring-shank nails at 6-inch spacing. That stops plywood sheets from peeling off in high wind — one of the most common causes of total roof loss.

Secondary water barrier

A self-adhered membrane or sealed seam tape over the deck joints. If the shingles blow off, water still can't pour through the seams. It's required on Florida re-roofs and earns a wind mitigation credit.

FAQ

What are hurricane straps?

Metal connectors that tie roof rafters or trusses to the walls so wind can't lift the roof off the house. Clips, single wraps and double wraps are the common types.

Does a new roof include hurricane straps?

Not usually — straps connect the framing to the walls and are separate from the roof covering. A re-roof does include deck re-nailing and a secondary water barrier.

What is a secondary water barrier on a roof?

A peel-and-stick membrane or sealed tape over the deck seams that keeps water out if the shingles or tiles are blown off.

Hurricane Roofing Center · (321) 444-5191 · FL CCC1337212