Common Metal Roof Problems
Leaks most commonly occur at...
  • End Laps (Horizontal Seams)
  • Side Laps (Vertical Seams)
  • Valley Gutters
  • Ridge Caps and Ridge Ventilations
  • Flashings
  • Bad Fasteners (Screws)
  • Holes
  • Gutters
  • Skylights
  • Access Hatches
Most leaks result from or are worsened by...
  • Rusted Metal Panels
  • Roof Movement (expansion, contraction, high winds, etc.)
  • 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, etc.)
  • Corrosive substances in the air.
  • 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
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. (National Roof Coaters will do this at no charge)
  • Determine exactly what the problems are
  • Develop a repair or replacement strategy that not only solves today's problems, but on that is is also compatible with a long term maintenance plan.
 
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