
Storm-Proof Your Garage Doors
The article discusses the critical importance of storm-proofing garage doors, particularly in hurricane-prone regions, tracing the increased stringency in building codes back to Hurricane Andrew in 1992. The garage door is identified as a significant vulnerability, with its potential failure leading to a breach in the home's envelope that can span up to 300 square feet. This breach can result in drastic pressure changes capable of removing a home's roof or causing structural damage, allowing water intrusion that ruins drywall and other interior components. Consequently, communities susceptible to storms have emphasized the necessity of reinforcing garage doors through either passive or active systems.
Passive systems are integrated into the product itself, requiring no action from the homeowner, while active systems necessitate installation in anticipation of high-wind events. For homeowners in these areas, two primary options exist: purchasing a new hurricane-resistant garage door or installing a garage door reinforcement kit. Building codes play a crucial role, with requirements varying by location, becoming most stringent in areas like Miami-Dade County, Florida, where doors must withstand winds up to 150 mph, consistent with a Category 4 hurricane on the Saffir-Simpson Scale. Testing for these systems involves wind-tunnel simulations and projectile impact tests to mimic flying debris.
One approach is to buy a new, code-compliant garage door. The Hurricane Master Garage Door System from DAB, for instance, is highlighted as a complete solution that meets Florida building codes. Ernie Hunto, a spokesperson for DAB, explains that their systems incorporate a patented InterForce Structural Reinforcement System. This system targets common weaknesses, such as end stiles and the door's skin. Hurricane Master doors utilize anti-distortion end stiles and a 24-gauge steel skin to resist the immense forces and impact from debris during hurricane-force winds, preventing the door from collapsing or deforming. Beyond the door itself, the article stresses the importance of a strengthened mounting area and track system, noting that Hurricane Master uses a 14-gauge tracking system with heavy-grade brackets. Hunto cautions that reinforcing an old door without upgrading the track system may still lead to failure. Additional reinforcing U-bars can also be added to Hurricane Master systems for enhanced wind resistance. The cost for a new hurricane-resistant garage door can range from $700 to $900 for a single residential door and up to $1,200 for a double-bay door, depending on size and wind-load capacity.
Alternatively, homeowners can opt for retrofitting existing garage doors with reinforcement kits. The effectiveness of these kits depends heavily on the original door's integrity; an old, wooden door may not withstand a Category 4 hurricane even with reinforcement. Secure Door, based in Plantation, Florida, offers a Florida Building Code-approved retrofit kit designed for DIY installation. Jack Stumpff, co-owner of Secure Door, describes their system as comprising telescoping, lightweight, high-strength aluminum braces. These braces are installed vertically, anchored into the header above the door and the concrete floor, and attached through the door's hinges. This setup protects against both external pressure and internal negative pressure during a hurricane. Three of Secure Door's braces on a 7-foot-by-16-foot garage door can provide protection against winds up to 180 mph. The installation process for the retrofit takes approximately 40 minutes, requiring basic tools like an electric drill, masonry bit, adjustable wrench, and screwdriver. Attaching the braces in preparation for a storm then takes only three to five minutes. Retrofit kits are significantly more affordable, with a single kit for a single garage door costing about $150, and a dealer-installed two-kit solution for a double-door garage costing around $500, which is considerably less than a new door of comparable size.
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