Your roof edge is where hurricanes attack first. Wind speeds up as it rolls over the edge, creating massive uplift. If the edge fails, everything else follows. Here is how to stop it.
Each piece has a job. When one fails, they all fail. Here is what each does and why it matters.
An L-shaped metal strip that goes under the shingles at the edge. It guides water into the gutter and keeps it from running down the fascia.
The vertical board at the roof edge that covers the rafter tails. It is what your gutters attach to. Also stops wind from getting into the attic.
Used on flat roofs. A taller edge piece that keeps gravel or ballast from blowing off and stops water from running down the wall face.
Find out how close your fasteners need to be based on your roof edge location.
It happens fast. One failure leads to the next. Understanding this helps you prevent it.
Wind hits the wall and rolls up. As it goes over the roof edge, it speeds up and creates strong suction. This pulls up on the edge metal from below.
If fasteners are too far apart or too short, the uplift force pulls them out. One fastener fails, then the next one takes more load and fails too.
Once the edge starts to lift, wind gets underneath. Now it is pushing up instead of just sucking. The metal peels back like opening a sardine can.
With the edge gone, wind attacks the roof membrane and sheathing directly. These peel off in sheets. Now water can pour in.
Get exact pressure calculations for your Broward County project. Know exactly what fastener spacing and materials you need.
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