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SPECIAL SECTION Proper maintenance prolongs the life of a roof, and in many instances, will allow for "repair" instead of "replace- ment" when a problem is identified. has disconnected metal cables or aerials is no longer capable of providing the intended protection for the building's occupants. If there are skylights, they should be checked for securement. Skylights that are not well sealed and secured around the frame's edge can leak, which may cause them to become dislodged, and allow for wind driven rain and debris to enter the building, especially during a high wind event. Figure 4: Loose or disconnected lightning protection cables can whip the roof and create punctures during a severe windstorm. A gap in the flashing or roof cover perimeter greatly increases the potential for roof cover failure during a high wind event and water intrusion or mold. Tears in the roof cover (See Figure 3), or worn or cracking seams, can allow water to enter below the cover. Additional areas for inspection If there is a lightning protection system (See Figure 4), see if it's loose or detached. This can lead to a tear or puncture in the roof covering, especially dur- ing strong winds. A lightning protection system that Also, over time, the plastic domed panels can become brittle and susceptible to cracks. Care and maintenance The best way to avoid roof-related problems and strengthen weather resistance is through regular care and preventive maintenance. Proper maintenance pro- longs the life of a roof, and in many instances, will allow for "repair" instead of "replacement" when a problem is identified. The frequency of inspections for routine maintenance depends on several factors, including the age of the roof, recent weather events, rooftop foot traffic and conditions identified during previous inspections. Scheduling inspections every six months is an effective way to make sure the pressure of other important busi- ness does not sidetrack them. CCR 8 keys to hiring a roofing contractor 1. Look for established, licensed or bonded professionals. 2. Obtain several bids for services. 3. Ask for and check references that specifically include other commercial buildings in your area. 4. Ask to see certificates of insurance – make sure that coverage for liability and workers' compensation insurance is current. 5. Contact your local Better Business Bureau to check for complaints filed against the inspector. 6. Make sure the bid clearly defines the work that will be done, including the hauling away of debris and grounds cleanup. 7. If your new roof is being installed on an existing building, check the deck for water soaked or deteriorated material; have damaged material replaced as part of the contract. 8. Discuss, verify and receive in writing the warranty information – confirm what is and what is not covered; keep copies of all warranties and a record of work performed to assist in future inspections, maintenance and repairs. 78 Commercial Construction & Renovation September/October 2012 © Insurance Institute for Business & Home Safety