Life Cycle Cost With the rising cost of building materials and the eradication of environmental resources it is not feasible or profitable to incur expensive annual life cycle costs or to replace a roof every 10 to 15 years. The life cycle cost of a roof is defined as the present value of all the costs associated with the roof from initial installation until reroof. Sustainable roof systems are becoming increasingly important. Sustainable systems preserve natural resources, reduce landfill waste and provide maximum life cycle cost efficiency.
There are three primary features that reduce annual life cycle cost:
ELIMINATE SEAMS AND JOINTS
Durazone’s tenacious ability to adhere to most surfaces; provides a watertight monolithic seal around penetrations, up parapet walls, and other parts of the structure without the use of mechanical flashings, in most cases.
BUILD POSITIVE DRAINAGE
Polyurethane foam can be sprayed in various thicknesses to create positive drainage and eliminate ponding water. Ponding water is the principal indication of inadequate drainage, a frequent cause of roof leaks. Roof leaks accelerate roof deterioration.
ADD A WEATHER RESISTANT COATING
After the SPF has been applied to the proper thickness and finish specifications, a protective layer of elastomeric coating is added. This protective layer produces a UV resistant and sustainable surface.