Cold Process Adhesive
Location: Missouri
Industry: Commercial Roofing
In commercial roofing, occupied structures are frequently in need of roof replacement. Traditional asphalt roofing installation techniques often use hot liquefied asphalt to adhere the membrane layers. With occupied structures like hospitals, schools and office buildings, hot applied asphalt is a challenging situation due to the odor that the hot kettle generates from the liquefying process, and the dangers present when using hot asphalt at temperatures above 300°F. Torch application is another method for adhering the asphalt roofing membranes. This also has its dangers as the membrane sheet is heated to a state where it becomes liquefied and sticky. This can smolder after the application and cause fire damage. Additionally, contractors are seeing stiff insurance premium increases for this risky application process. Alternative attachment methods for these membranes are often sought, and that is where cold process adhesives have carved their niche.
ErgonArmor's cold process adhesives offer low VOC, high solids formulas that provide a great alternative to the traditional hot applied or torch down methods. These solvated asphalts modified with special additives help the system specifier and the contractor address the safety, application process and performance of the roofing system. These adhesives can be applied by serrated squeegee or spray equipment.
Challenge
A hospital facility in the Midwest had significant concerns about the roofing system over the surgery center portion of the hospital. This area of the hospital has very high levels of instrumentation and activity with surgeries performed daily. The roofing system above the area needed to be replaced, and the search for the proper system began.
Solution
A two-ply cold-process APP membrane system was chosen for its proven track record and ease of installation. The system, using ErgonArmor's cold process adhesive, contributed minimal odor on the rooftop compared to torch application or hot asphalt as there was a large air intake located on the outer wall of the surgery center. With a limited window for installation due to weather patterns, the spray applied cold adhesive proved to be the fastest process with the least amount of open time exposed to weather on the roof. The roofing system was completed in three days as compared to 5 days with the other methods and is standing up well to the elements.
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