Roofs in Los Angeles, San Diego, and the surrounding Southern California regions, can be re-coated to extend the warranty originally provided in the final year of the warranty coverage. Some coating manufacturers offer five (5) year and ten (10) year extensions of warranty coverage. What is the value of warranty coverage? When all conditions are [...]
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Rooftop Mounted Equipment
Many buildings, especially in the greater Los Angeles and surrounding Southern California areas, use recessed flat roofs as locations for the HVAC service equipment. These wells are designed to screen from view at ground level, any unsightly service equipment. The flat roofing surrounding these units, in these crowded areas, eventually fails causing leaks. Unit vibration, improperly [...]
Retro-fit roofs… but verify
Existing asphalt roofs, in Southern California, can be successfully Retro-Fitted with fluid applied ‘recovery’ systems or coated spray-applied polyurethane foam insulation. Project preliminaries include vacuuming all loose gravel and accumulated dirt off the surfaces. This photo shows a typical gravel vacuum operation: The next stage is crucial to success. The diagnostic inspection using non destructive [...]
Insulation Inspection is a must
It is always a must to include a third party inspector to assure the quality of a spray applied polyurethane insulation application. In this picture the inspector uses a standard foam insulation depth gauge to assure the minimum 1” thickness of the application. The final inspection also utilizes an optical comparator to check the dry [...]
