Your house may be your castle, but chances are it’s not built like one. While built to be energy efficient, aesthetically pleasing, and comfortable, it may not be built to last. Giant cedar beams, stone or brick facades, balconies and 20 foot ceilings give the impression that our dwellings are built to withstand the most destructive natural forces. But looks can be deceiving…….
THE SITUATION:
Roofs are frequently the first to be damaged in high winds. Roof bracing is designed to do two things: 1. Keep the roof from shifting diagonally and 2. Keep the roof from sagging. What it is NOT designed to do is keep the roof from lifting from an upward pressure that would be associated with tornadoes or straight-line winds.
SIMPLE SOLUTIONS CAN MAKE A BIG DIFFERENCE:
- A simple soft metal strap or ¼” wood gusset can be nailed to the brace tying together the roof member and bracing member and the bracing member and house can really help.
- Simple metal braces called hurricane clips (or tie-downs) can be purchased at big box stores. When installed, they keep the rafters attached to the top plate. The same straps can also be used to hold the stud to the stud-bottom plate (helps keep floors tied to the foundation)..
- In new construction, the builder should bolt the bottom plates to the slab or the foundation beams (required in most cities).
- In the attic, add bracing to reinforce gable ends.
- Add additional sway bracing also.
OTHER PROJECTS:
- Tornados and high winds create lots of “flying” debris that can easily break glass. If you’re changing your windows or patio doors, shop for impact resistant glass and check the wind load rating or Design Pressure (DP) rating. The higher the DP rating the better performance under winds — a DP-50 window is structurally more sound than a window rated DP-35.
- Consider exterior doors of steel or fiberglass.(great for security too)
- High-wind upgrade kits are available to strengthen existing garage doors or replace with a door specifically designed for high-winds.
While these solutions and projects are not a guarantee that high winds will not do major damage to your home, they will strengthen the structure. Imagine the tires on your car being held on with 1 bolt instead of 5 or your windows with cellophane instead of glass.
For more information check: the Federal Emergency Management Agency: http://www.fema.gov/plan/prevent/saferoom/ and the Texas Tech University Wind Science & Engineering Research Center: http://www.depts.ttu.edu/weweb/
