Cooley C-3
C3 Single-ply Roofing Systems
For mechanically-fastened or ballasted roofs, you can’t find a better roofing, or re-roofing membrane than Cooley C3.
C3 is an advanced formula single-ply membrane that beats its competitors in every category: ease of application, performance and long term cost savings! C3 is remarkably workable. It’s easy to trim and shape, a timesaver when our roof is broken up by pipes, structures, ducts, or air conditioners. Plus, Cooley’s standard extra-wide rolls means C3 installs quicker with fewer seams.
As for performance, our PVC with DuPont “Elvaloy” based compound sets the industry standard for every kind of resistance: water, UV, oil, chemical, salt and other pollutants and contaminants. The system is fully approved for fire resistance by the major code organizations.
Installation is simple. Our hot-air welded seams are easy and foolproof, forming a fused bond along the overlapping rolls as strong as the C3 material itself. Because C3 is so tough, with its high tenacity, low-wick polyester reinforcing scrim, you can choose just the thickness you need and save money on material Cooley also uses a patented aramid fiber reinforced edge for superior strength.
Over 25 years ago, Cooley pioneered the white single-ply membrane. Since then, we’ve steadily improved it. Now you can enjoy the result: Cooley C3, the next generation single-ply roofing.
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C3 Plus Techincal Data
- Suitability: Almost any commercial roofing application; sloped, curved & flat
- Composition: A tri-polymer alloy based on DuPont’s high performance Elvaloy compound
- Reinforcement: Wick-resistant industrial strength polyester scrim, patented aramid reinforced edge
- Standard Width*: 1.98 m (78 in.)
- Standard Thicknesses: 1.2 mm (45 mil), 1.5 mm (60 mil)
- Colors: White, Grey, Tan
- Application: Mechanically-fastened and hot-air welded (can also be ballasted)
- Approvals:
- Factory Mutual Class 1
- 1-90, (18” on center)
- 1-105, 1-120, 10150
- UL Listing - Class A & B
- *3.05 m (120”) available
- Application: Mechanically-fastened and hot-air welded (can also be ballasted)
Benefits Comparison
| Cooley C3 Single-ply PVC with DuPont “Elvaloy” | Asphalt Built-up Roof | TPO | |
|---|---|---|---|
| Water Resistance (Standing) | Has been proven in applications such as roofing and pond liners for more than 25 years | Good for 1-5 years, but poor with age | Good initial, but unknown with age |
| Fire Resistance | Excellent: is naturally fire resistant due to chlorine content | Poor: Asphalt is naturally flammable | Fair to poor as a fire retardant, FR package such as magnesium hydroxide must be added at levels close to 50% |
| Wind Uplift | Excellent film strength of PVC combined with single layer adherence | Fair to good depending on installation | Similar to PVC |
| Building Load | Light in weight: 1 to 2kg/sq mt (2 to 4lbs./sq.yd.) | Heavy Building Load Requirements 6 to 9 kg /sq. mt (12 to 18 lbs./sq.yd.) | Similar weight as PVC |
| Chemical Resistance | Excellent due to PVC /Elvaloy properties | Poor due to asphalt properties | Fair to poor; depending on chemicals eg: oil & fats break down TPO |
| Worker Application | Simple single ply hot air welding | Multiple layers, propane equipment, 300% more time to install, hazardous vapors | Much stiffer than C3 |
| Repair | Simple: proven easy to reweld aged exposed membranes | Difficult to locate leaks Requires new asphalt rolls | Difficult to re-weld exposed material Long term weldability is unknown |
| Cost | Savings through Longer Life Quick application, energy savings | Requires multiple applications Initial low cost but higher comparable costs after 10 years | Low up-front material cost Unknown long term cost |
“DuPont™ Elvaloy® KEE has been proven for decades as one of the World’s Best Roofing Membranes. It’s what helps keep your roofing membrane flexible and maintainable over time.
