For more than 10 years CE DUR has proven itself as a premier roofing material in one of nature’s toughest testing grounds—the state of Colorado—where wind, rain, hail and snow conspire against all things man-made. And the material has been used in countless other commercial applications such as aircraft, artificial hearts, automotive parts, athletic shoes, and more because of its durability and excellent molding characteristics.
CE DUR is manufactured by a modified reaction injection molding (RIM) system. This system is a proven and high quality manufacturing process in polyurethane technology.
There are four impact resistance ratings from 1 to 4, with 4 being the most impact resistant. In the Class 4 test a 2” steel ball is dropped from 20 feet on multiple surface points of a CE DUR shake. CE DUR passed the test with a Class 4 Impact Rating.
Fire ratings (UL 790 testing protocol) are granted at one of three levels: Class A, Class B, and Class C. Class A is the highest rating a product can receive. Testing is accomplished by measuring the resistance to penetration and spread of flame of a representative test roof. The Class A rating indicates the product has equaled the testing industry’s most stringent fire resistance standard, a measure of how the roof will perform in severe fire conditions.
Class A under ASTM E 108/UL 790 when installed with readily available and approved underlayment, per ICC 2530. Class B installation where permitted. See install guide for specific underlayment requirements for Class A or Class B installation.
CE DUR can be installed in areas subject to a maximum wind speed of (3-second gust) 100 mph, with a mean roof height no greater than 40 feet.
Tested up to 110 mph (3 second gust) with additional fasteners and reduced exposure.
CE DUR weighs only 170 lbs. per roofing square. There should be no structural concerns at this weight as long as the existing building structure and roof deck are sound.
Basically, none. When tested through full submersion for 7 days, CE DUR absorbed less than one half of one percent water by weight. It essentially weighs the same wet or dry. This feature also gives CE DUR its superior freeze/thaw cycle performance.
No. CE DUR replicates traditional wood shakes in installation method as well as appearance. No special tools or techniques are required. Any licensed contractor experienced with wood shakes should be capable of installing CE DUR.
Yes, CE DUR can be installed in cold weather. Extra care should be taken when installations occur in temperatures under 40°F (4.4°C).
No. CE DUR should not be installed over existing roofing materials. Improper installation may void the warranty.
No sealant is required on cut surfaces and no repair is required if cut or chipped because CE DUR is made to prevent moisture intrusion with closed cell technology and are colored throughout.
There are no adverse effects from the freeze/thaw cycle as CE DUR absorbs less than 1% of water from snow and/or rain.
CE DUR has passed both the freeze thaw cycle test of the ICC ACO7 as well as the ASTM 1492 freeze thaw cycle test.
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