Roofing Type Information
Benefits
- Metal roofs are extremely durable and long lasting
- The metal panels are strong and will provide protection
- Very resistant to the elements, wind, and corrosion
- Environmentally friendly because they last longer and can be recycled
- Lightweight system, less stress on the building structure
- Reduce cooling costs by reflecting solar heat
- Can Provide unique color and aesthetic appearance to properties
Common Problems
- Lap Seam Failure
- Rust
- Backed out / Rusted Fasteners
- Failed penetration flashings
Life Expectancy
- 40-50 years if properly maintained
TPO
Benefits
- Resistance to the elements and TPO
- Heat aging properties
- Energy efficient
- The white TPO reflects sunlight off of the roof
- Resists mold growth, dirt accumulation, tears, impact and punctures
- Flexible and can allow for building movement or settling
Common Problems
- Cold welds
- Thermal shock
- Failing patches around penetrations
- Punctures from excessive debris / foot traffic
Life expectancy
- TPO roofs can last 20-25 years depending on membrane thickness and how well the roof is taken care of
EPDM
Benefits
- Recyclable material
- Will not shatter in frigid temperatures
- Resistance to hail
- Longevity of the system
- Simplicity of install and a proven system
Common Problems
- Cracking sealants
- Worn down membrane from UV rays
- Membrane begins to get holes / punctures
- Failed flashings around penetrations
Life expectancy
- EPDM roofs typically last around 20 years
Ballasted Roofs
Benefits
- Very cost effective
- System is quick and easy to install
- Can be used as a patio or rooftop area
- Rocks protect the membrane from UV wear
- Energy efficient because the rocks don’t pass the heat into the building
Common Problems
- Rubber membrane begins to wear down
- Flashings and sealants wear out
- Very difficult to leak chase
Life Expectancy
- Ballasted roofs can last 20-25 years
Built-up Roofs (BUR)
Benefits
- Arguably the best roofing system, still to date.
- Extremely durable, can last 50 years
- Provide very good waterproofing and protection to a building
- Not a lot of maintenance required
- Multi-layer protection adding to the durability
- Good UV Protection
Common Problems
- Roof beings to look like alligator skin from the UV rays over time
- Top layer starts to crack and peel
- Prone to mold
- Tough to service and maintain when aging
Life expectancy
- BUR can last 40-50 years due to the durability of the asphalt and gravel
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