Picture this: You and your busy family get home from the weekly t-ball practice, gather around the table for a quick family dinner, and just as you’re reaching for the mashed potatoes…DRIP, DRIP, DRIP. You look up to discover that your ceiling has some major water damage and that you have a leak in your roof. If you’re thinking (or shouting) “We just had a new roof installed and it’s supposed to last forever!” We hear you, we feel your pain.
With our inability to control Mother Nature, leaks can and will happen to roofing systems that are not properly installed or installed using old installation methods.
In this post we will discuss why leaks happen and alternative, leak-resistant methods for installation that are now available in the metal roofing industry.
Mother Nature is Tough
When a metal roof is installed, screws are used to penetrate the roof and secure themselves into the roof joist. These rust-resistant zinc-plated screws have a special neoprene or Ethylene Propylene Diene Monomer (EPDM) washer to help prevent deterioration and leakage. However, over time even the most durable materials begin to deteriorate under harsh conditions. Sun, wind, and extreme temperatures can all work to damage the washers that are protecting your home from water leaks. Salty Coastal spray can speed corrosion and lead to rust at penetration sites. Finally, as the washer or grommet deteriorates, water can and will find its way under your roof.
People Make Mistakes
While the elements take a toll on any roofing material, the most common cause for a leak in an otherwise durable metal roofing panels are caused by human error. In other words, poor installation and workmanship may be the culprit. If your roofer used too much or too little pressure when inserting the screw, leaks are likely to occur. Conversely, an under driven screw leaves room for water to trickle in under the rubber seal. Screws that are driven at an awkward angle or that don’t find an anchor in a joist may also open your roof up to the elements. Ultimately a screw causes a hole in your roof. Florida Roofers, Arry’s Roofing note that “ In traditional metal roofing installations screws can be problematic. Everywhere there is a screw, everywhere there is a hole there is a potential maintenance related issue.”
Metal Expands and Contracts
Expansion and contraction may also play a part in your leaking metal roof. As your roof warms and cools, fasteners may come loose and back out.
How to Repair Leaks Around Screw Holes
Even though your metal roof will last for half a century or more, it’s recommended that you hire a professional roofer to regularly inspect your roof to make sure all fasteners used are not on the verge of being issue for your roof.How to Avoid Leaks in Your Metal Roof
As roofing screws are responsible for a vast majority of metal roof leaks, a screw-free installation helps ensure that your roof remains leak free. Adhesive Installation Systems like StealthBond©, virtually eliminate the need for screws and drastically reduce the likelihood of leaks. Adhesive systems stay flexible throughout the seasons and allow for the natural expansion and contraction of your metal roofing panels.
StealthBond® is sold through authorized installing dealers. These dealers are trained to install the StealthBond® system and provide great service for homeowners.