PROBLEMS WITH STONE COATED STEEL ROOFS 

Our team of Metal Man certified inspectors have been noticing a significant amount of stone coated steel roofs with damage that's visible from the street. And the majority of the homeowners with stone coated steel roofs that ask us to assess the damage have been in need of a full roof replacement. So, we thought we'd take a minute to review the pros and cons of stone coated steel roofs in order to help homeowners like you make the best choice for your home.
 
Corrosion and of stone coated steal and gathering of loose stones near the gutter. Damage to roof due to corrosion over time. Vulnerable to the elements. Damage to stone coated steel after a hail storm

COMMON ISSUES WITH STONE COATED STEEL ROOFS

These types of roofs use an acrylic bonding agent to secure decorative stones to metal roofing panels. Along with a clear acrylic top coat that keeps roof together. However, over time, the bonding and top coat break down and stones become loose. Often times, ending up in the home's gutter system. The result is an unattractive, unprotected roof, and clogged gutter system. The most critical factor being an unprotected roof, meaning that you are susceptible to permanent damage, leaks, and resulting moisture issues like mold. There are several key issues to watch out for:
 
  • MOISTURE, MOLD, WATER DAMAGE
    • because panels overlap, but do not interlock, there is ample opportunity for snow, rain, and wind to get through
    • exposed fasteners rust over time and can trap moisture within them
    • certain types of stone coated steel roofing systems are more prone to moisture and condensation, which can cause rot over time

  • GENERAL QUALITY
    • Stone Coated Steel can be complicated to install and not all roofers are trained to do it properly
    • improper installation can leave your home susceptible to the elements, including water damage as stated above
    • this may also mean poor insulation, energy leaks, and greater costs as a result
    • of course, poor quality will also lead to more repairs and replacements in the future

  • POOR CURB APPEAL
    • initially, some people complain about inconsistent coloring of their roof due to the variation in natural stone
    • but, the real issue is when the stones come off - it is obvious from the street view and looks terrible

  • EXPOSED FASTENING SYSTEM
    • exposed fastening systems often rust, loosen, or fall out over time
    • once the above issues occur, the roof is exposed and susceptible to leaks, mold, rot, and other water damage
    • loose or missing fasteners mean that your roof is no longer secure and will be vulnerable to wind uplift in turbulent weather
    • contact us to learn about the benefits of closed fastening systems
 

BENEFITS OF STONE COATED STEEL ARE THE SAME BENEFITS AS OTHER METAL ROOFING SYSTEMS

The benefits that are often listed for stone coated steel are related to the steel rather than the stone coating. Quality metal roofing systems are lightweight, durable, energy efficient, qualify for homeowners insurance savings, save money over time with lower energy bills and no replacements needed, and are often made of recycled materials. They are also recyclable at the end of their (very long) life, so they don't end up in landfills. However, once the stone coating falls off, many of these benefits disappear. Leaving you with big portions of your roof that are unprotected, and a gutter system that needs to be cleaned out.
 

BETTER METAL ROOFING OPTIONS

The good news is there is a better metal roofing option for your home. Each home and homeowner is different, so you should look through the different styles: standing seam, tile, shake, slate to find one that works best for you. We also use a closed fastening system that keeps your roof secure and protected from high winds, rust, leaks, and water damage over the lifetime of your roof. You can click here to read about roof recommendations for different styles of homes. Or contact us today and one of our experts can discuss your options with you. You can also schedule a free inspection and we can review the details in person.