Have You Become Complacent?

Since the destructive 2004 and 2005 hurricane seasons, only 4 hurricanes have made a U.S. landfall, all doing so in the western half of the Gulf of Mexico, most notably, September 2008’s Hurricane Ike.

Furthermore, since Hurricane Ike’s destructive rampage, the U.S. has had only a few hurricane “close-calls” the past 2 seasons.

Complacency makes you less attentive, less aware, less able to react when a serious situation presents itself.

As the U.S. faces a potential tropical threat later this week from Hurricane Irene, a major concern among meteorologists is “hurricane preparedness complacency”.

Do you know what the condition of your roof is? Will it be able to withstand hurricane or tropical force winds? Are the drains functioning properly to effectively and quickly remove the water to avoid ponding water?

It is not necessary to be in the direct path of a hurricane to feel and experience the effects of it. Don’t ever assume you are safe. It is always better to be prepared, rather than left picking up the pieces.

For more information on preparation, visit: http://www.ramconroofing.com/hurricane.htm. Or call RAMCON at 1-877-726-2661 to speak to a roofing expert today!

Weathering the Storm: BUR versus TPO/PVC/EPDM

What happens when high velocity winds meet your roofing system? Well, there’s no simple answer and no way to predict precisely which roofs will have trouble; Mother Nature is just unpredictable. Sometimes, on buildings with the same type of roof that are located side by side, one roof blows off or suffers other catastrophic damage while the other roof has very little damage. Let’s compare the two most common styles of roofing in Florida.

Built-Up Roofing Systems (BUR)
The tried and true performers of roofs that weather storms are conventional built-up or modified bitumen membranes fully adhered, especially when they are adhered to a structural concrete deck. Historically, after a major storm, many have puncture damage to flashings and cuts as a result of flying debris, but the roofs stay intact and in place. Gravel-surfaced, built-up roofs fared slightly better than the modified bitumen systems because the gravel that was well embedded in the flood coat provided protection from flying debris. The weight of the gravel also helped keep the roof down. Unfortunately, most of the built-up roofs lost a good portion of the gravel surfacing, causing other damage to surrounding buildings, but the roofs that the gravel came from suffered the least amount of punctures.

Less effective, but still very good, were the modified bitumen and built-up systems mechanically attached to steel decks. The asphalt-based roof systems that were attached to lightweight concrete or gypsum deck tended to have more wind-related damage than others. Generally, the membrane stayed intact, but sections pulled up from the deck, leaving the membrane loose on the roof but looking as if nothing had happened to it. With lightweight concrete and gypsum decks, whether the roof stayed in place mostly depended on the condition of the lightweight concrete or gypsum and its ability to resist fastener withdrawal.

Single-Ply Roofing Systems (TPO/PVC/EPDM)
Fully adhered single-ply membranes resisted blow off about as well as asphalt systems but were more susceptible to damage from flying debris. Almost all types of flexible membrane systems suffered cuts and punctures during the storms. There was one exception: Roofs that had no mechanical units or other penetrations were almost always free of puncture damage.

Overall, fully adhered single-ply membranes were more hurricane-resistant than mechanically attached systems. The mechanically attached systems weathered the storms well as long as they remained intact. Once the membrane was cut, the incidence of blown-off membranes increased. Wind is able to get into the cuts, so the roof was subject not only to negative pressure above the membrane — which pulled the membrane up — but also to positive pressure from underneath, which pushed the membrane up.

Because roofs are mostly designed for uplift pressures only, the wind was able to loosen poorly fastened screws. This causes a ripple effect: one screw pulls out, putting extra stress on those around it, which in turn causes them to pull out. This cycle repeats itself until the membrane comes all the way off.

Roofing Trends: Shelter From The Storm

Long before mankind could imagine such inventions as air conditioning, high tech security or cubicles; it discovered the benefits of a secure, watertight structure to protect against the elements. From the natural shelter of cave dwellings man emerged to construct roofs from various native materials, including animal skins, dirt and twigs, and tree bark. These early roofs needed to be completely portable and likely required constant repair. In some ways, very little has changed. The essential purpose of a roof—to shield building occupants from the ravages of weather—is the same. And we share one basic tenet—roofs should not leak.

These days, the demands placed on roofs have changed significantly. They are expected to last 20 years or more and, with proper preventive maintenance and inspections, should not fail, particularly during inclement weather.

Weathering The Storm
Building owners and managers must keep in mind many things when renovating, replacing, or designing a maintenance plan for roofs.  This includes increased wind loads and more frequently occurring 100 year rainfalls, hurricanes, and hail storms. Facility managers and building owners must be aware of the need for roofing systems that do more than just keep water out of their facilities. Throughout Florida, increased durability and high performance roofing systems are important protection against hurricane force winds and golf ball sized hail. The impact of the sun’s rays on a roof can also be particularly harmful. Roofing materials can decay over time due to the sun’s heat and ultraviolet rays.

How To Keep Up
Proper maintenance and informed decisions can help ensure a long life for your facility’s roof. To explain it simply, past and current, the most pressing issue and greatest challenge in roofing is to provide a reliable, watertight, and leak free waterproofing system for a 20 year service life. So how can you extend the roof service life and mitigate storm risks?

Simple really, it is proven that you can prolong the life of a roof, diminish the impact of regular wear and tear, and ensure the roof remains in good condition during a storm through adequate maintenance practices. However, it is easy to install a roof and forget about it until something goes wrong. This is a mistake that could lead to leaks or potentially damaging roof failure.

Sadly, roofs are not maintenance free. Some roofing types require less maintenance than others, but they all require some degree of upkeep. The better this asset is maintained and cared for, the longer service life facility managers will get in return.

Inspections are necessary to prevent costly damage. Some problems may not be evident from a superficial perspective. A leak is an obvious problem. Less obvious, however, is wet insulation, which can cause an organization to lose thousands of dollars in thermal investment. The investment in a regular maintenance, inspection, and repair program is imperative to manage the roof properly.

We strongly encourage all of our clients, to extend the service life of your roof and lower lifetime maintenance costs. Ensure your roofs are regularly maintained by a quality preventative maintenance program. We offer our clients a full range of solutions, including an unlimited, no-cost leak response. You have a leak, we fix it free. End of story. Call us at (877) 726-2661 to learn more.