JOHNS MANVILLE & COOLEY GROUP

Johns Manville (JM) and the Cooley Group have a unique strategic partnership. It

allows us to offer a successful and proven PVC membrane with a 25+ year history

in the market. The Cooley Group developed C3 with DuPont™ Elvaloy® KEE in

1988 and commercialized it in 1990. Shortly after launching, the naming evolved to

C3Plus by adding a patented Aramid yarn edge along the fastener edge of all full

rolls. The proprietary Elvaloy® KEE formulation, with proven real-world results, has

not once changed in its 25+ years of production; despite the introduction of various

grades or amounts of DuPont™ Elvaloy® KEE offered by other manufacturers.

(See cooleygroup.com/building-products)

Quick History: DuPont™ Elvaloy® KEE, a solid high molecular weight polymer, has

been in the market since 1973. It was developed as an alternative to liquid plasticizer

to improve the long-term performance of thermoplastic materials.

The Power of Two Companies With a Combined History of More Than 241 Years

JM PVC 50 mil

JM PVC 60 mil

Competitor A

Competitor B

Competitor C

45,000

40,000

35,000

30,000

25,000

20,000

15,000

10,000

5,000

0

Ho

urs

Tes

ted

Accelerated Published Weather Data for PVC

ASTM Standard

Still Going!

Did You Know? DuPont™ Elvaloy® KEE

HP is mainly promoted for cable jacket

applications. However, it had a brief history

in the PVC roofing membrane market in the

1990s. The formulation was sourced by a

single manufacturer who is no longer in the

roofing membrane business.

“JM PVC (Cooley C3 Plus) ranked the highest for chemical resistance.”

25+YEAR PROVEN PVC FORMULATION HISTORY

DataIt is critical to make sure that the reporting test methods and data are relevant to

roofing and that the product has a proven real world track record.

Accelerated weather testing for roofing membrane is conducted with florescent light

and UV exposure to detect cracking, crazing or discoloration. ASTM G154 or ASTM

G155 requires a PVC roofing product to pass 5,000 hours. Third-party accelerated

weather testing reveals that JM PVC 60 mil has surpassed over 39,000 hours and is

still going!

TestingIn 2006, JM PVC (Cooley C3 Plus) was one of six membranes used to study chemical

resistance by Simpson Gumpertz & Heger (SGH).

A white paper citing this study was then published by Carl G. Cash, P.E., A. G. Davies,

Jr., D. L. Niles, and L. C. Carey titled “Chemical Resistance of Various Single Ply

Roofing Membranes.” It states, “The PVC/KEE membrane is the most resistant to

the chemicals we tested.” JM PVC membrane came out on top with water, HVAC oil,

canola oil, 1 N acid, pH 11 base and kerosene.

JM PVC - Testing, Data and Performance

Data (Cont.)JM PVC made with Elvaloy® KEE has the same or better Solar Reflective

Index (SRI) than other membranes as reported in the Cool Roof Rating Council (CRRC)

(www.crrc.org) table below.

Initial 3 year Initial 3 year Initial 3 year

JM PVC 0.86 0.70 0.86 0.82 108 84

Carlisle® Sure-Flex™ KEE 0.86 0.70 0.86 0.82 108 84

Carlisle® Sure-Flex™ KEE HP No Data No Data No Data No Data No Data No Data

Solar Reflectance Thermal Emittance SRIManufacturer

Sarnafil® S327 0.83 0.63 0.90 0.86 104 75

PerformanceA 40-mil, JM PVC fleece backed roof was installed with hot asphalt in 1992 in Alpine,

Utah. It was harvested in 2010 and put through the same rigorous ASTM testing

standards that our new membranes undergo. The results proved ultimate durability

in the harshest conditions, even on thinner membranes.

The comparison against ASTM requirements show this roof would pass, even after

more than 18 years.

Carlisle and Sure-Flex are trademarks of Carlisle.

CRRC PVC SRI Comparison

108

84

108

0.00

84

0.00

75

104

SRI Initial SRI 3 year

Carlisle® Sure-Flex™

KEE

Carlisle® Sure-Flex™

KEE HP

Sarnafil®

S327JM PVC

CRRC PVC Solar Reflectance Comparison

0.00 0.00

Solar Reflectance Initial Solar Reflectance 3 year

JM PVC Carlisle® Sure-Flex™

KEE

Carlisle® Sure-Flex™

KEE HP

Sarnafil®

S327

0.86 0.860.70 0.70

0.63

0.83

Tested Physical Properties

Test Method

ASTM D4434Requirements

Johns Manville 50 Mil

Fleece Back

Exposed 40 Mil

Sample Avg.

Unexposed 40 Mil

Sample Avg.

Thickness, min, in.

Thickness OverScrim, min, in.

Low Temperature Bend, °F

ASTM D751

ASTM D7635

ASTM D2136

±10% from Nominal

0.016

Pass

0.050(Membrane

only Nominal)

0.020

Pass @ -40 Pass @ -40 Pass @ -40

0.040 0.043

0.0187 0.0191

Thickness over scrim

Scrim

Thickness under scrim

Fleece back in asphalt

1

2

3

4

JM PVC meets the required ASTM D2136 low temperature bend at -40°F.Installation of any roofing system in sub-

zero temperatures could bring additional

challenges, lacking sufficient thermal energy

for heat-welding, adhesive restrictions and

overall personnel working conditions.

Thickness Over Scrim

23

4

18 mil after 18 Years! 1

In roofing, time is the great equalizer. JM’s PVC has worked for more than 25+ years in

all U.S. climate conditions, with no membrane degradation failures. Accelerated testing

and promise of performance is no match for a 25+ year proven history. Think about the

consequences of a roof leak or roof failure in your building or operation. Yes, it will get

fixed eventually, but think about the disruption. Are you willing to take this risk?

• With JM PVC, there has been more than 600 million square feet of installed PVC

going back 25-plus years in real world conditions.

• Johns Manville is a 150+ year old company financially backed by Berkshire Hathaway.

• Our partnership with the Cooley Group provides a unique opportunity to share best

practices, while having the ability to sell a proven product.

Conclusion

More than 600 million square feet of installed PVC going back 25-plus years in real world conditions.

Salt River Baseball Field at Talking Stick

Scottsdale, AZ

717 17th St.Denver, CO 80202(800)922-5922www.jm.com/roofing RS-8958 7-16 (Replaces 4-14)