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Article: Corrosion Under Insulation (CUI) - How Coatings Technology is Tackling a Costly Industry Problem
A two-year breakthrough study estimates the annual direct cost of corrosion in the United States to be $276 billion. While this is a sizeable number, larger than many of the world's economies, it has been estimated that 25-30% of the total, or $70-80 billion, could be saved by using state-of-the-art corrosion management practices. In addition to the cost savings, corrosion can result in public and industrial safety issues.
CC Technologies (Dublin, Ohio) conducted the research in a cooperative effort with the U.S. Department of Transportation Federal Highway Administration (FHWA). NACE International - The Corrosion Society worked with Congressional representatives to secure $1 million in federal funding for the study.
The study identified the direct cost of corrosion in five major sectors of the economy - infrastructure, utilities, transportation, production & manufacturing, and government.
Click below for Summary Report
Leaks most commonly occur at . . .
• End Laps ( Horizontal Seams ) ~ see SUPERBASE ®
• Side Laps (Vertical Seams ) ~ see SUPERBASE ®
• Valley Gutters
• Ridge Caps and Ridge Ventilations ~ see SUPERBASE ®
• Flashings ~ see SUPERBASE ®
• Bad Fasteners ( Screws ) ~ see SUPERBASE ®
• Skylights ~ see SUPERBASE ®
• Access Hatches ~ see SUPERBASE ®
Most leaks result from or are worsened by . . .
• Rusted Metal Panels ~ see RUSTGRIP ®
• Roof Movement ( expansion \ contraction ) ~ see SUPERTHERM ® or SUNSHIELD ®
• Overloading Roof With Equipment
• Foot Traffic on Roof
• Faulty, Clogged or Improperly Sized Gutter Systems
• Faulty Construction / Poor Design
• Old Age
• Over Tightening Fasteners
• Loose or Missing Fasteners
Rust generally occurs because of . . .
• Exposure to the elements ( Acid Rain, UV ) ~ see ENAMOGRIP ® or SP LIQUID MEMBRANE ®
• Corrosive substances in the air ~ see RUSTGRIP ®, ENAMOGRIP ® orSP LIQUID MEMBRANE ®
• Age of the building
• Foot traffic which causes broken corrugations
• Breakdown of factory coatings
• Over tightening of fasteners during installation
• Debris left on the roof
• Building movement
• Condensation on interior side ~ see SUPERTHERM ®, SUNSHIELD ® or EPOXOTHERM ®
• What to do when a metal roof begins to leak or rust . . .
- Call a licensed roofing consultant, architect or contractor and ask for a roof survey.
( ie. Roofing Contractors Association of BC www.rcabc.org)
- Determine exactly what the problems are.
- Develop a repair or replacement strategy that not only solves today's problems but one that is also compatible with a long term maintenance plan.