contractor roof benefits

CeDUR Synthetic Roofing Products for Contractors

As a contractor you proudly serve your community and provide homeowners with long term safety and protection from natures harsh elements. Homeowners trust you and rely on you as a source of information and knowledge. Professional contractors understand the importance of installing a long lasting and durable roofing material that provides superior value. Installing a synthetic CeDUR roof gives your customers long term value, beautiful curb appeal and improves your portfolio and scope of work.

From an installation perspective CeDUR installs like natural cedar shakes. We feature 3 product pieces; starter, shake, hip and ridge. If you have CeDUR questions, click here to submit a Contact Form and a CeDUR Team Member will be in contact with you shortly or give us a call at (720) 974-9200.

Synthetic Roofing Product Benefits

  • The Underwriters Laboratories, Inc. (UL) tests products and technologies for safety before they are marketed around the world. The UL 2218 Impact Test is the standard for impact resistance testing in the roofing industry. The test evaluates the effect of impact from a steel ball on a roofing test deck assembly.

    There are four impact resistance ratings from Class 1 to Class 4, with Class 4 being the most impact resistant. In the Class 4 impact test, a 2-inch steel ball is dropped from a height of 20 feet on multiple surface points of a CeDUR Shake. CeDUR did not incur damage from the steel ball and passed the test with a Class 4 Impact Rating (highest rating achievable).

  • CeDUR weighs only 170 pounds per roofing square. One roofing square, or square of roofing product, is the amount of material needed to cover 100 square feet of roof area. With CeDUR there should be no structural concerns at this weight. If you are working on a historical landmark or aged structure, it is best to consult with a CeDUR Team Member prior to installation.

  • No. CeDUR should not be installed over existing roofing materials. Improper installation will void the warranty.

  • CeDUR has established a strong network of roofing contractors that represent the highest standard of excellence, quality, and knowledge in the residential roofing industry. If you need assistance choosing a quality local roofing contractor, click here to visit our Find a Contractor page.

  • No sealant is required on cut surfaces and no repair is required if CeDUR is cut or chipped because our product is developed to prevent moisture intrusion with Closed Cell Technology and features color through pigmentation and no cavity back.

  • 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. 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.

    CeDUR boasts a Class A Fire Rating without the need of a special fire-resistant underlayment. When comparing fire resistance of synthetic roofing materials it is wise to understand that other synthetic, composite, or polymer based roofing products require a special fire-resistant underlayment during the roof installation. CeDUR is the only product that does not require that special underlayment.

  • Through our State of the Art Polyurethane manufacturing process we are able to engineer a product that provides high insulation value and is extremely resistant to fire. CeDUR shakes are a solid top to bottom and front to back and do not feature a cavity back underside. In addition, CeDUR is also composed of polyurethane where as most other synthetic or composite roofing products are composed of polyethylene.

    Natural wood shakes ignite at 375 degrees Fahrenheit, the temperature on our Class A burn test reached a temperature in excess of 1,400 degrees Fahrenheit and CeDUR roofing shakes did not ignite. Through our patented manufacturing process CeDUR shakes achieve a Class A Fire Rating without the use of a special fire resistant underlayment. Discerning homeowners and industry professionals choose CeDUR because of our extreme fire resistance and stunning wood beauty.

  • Yes, CeDUR can be installed in cold weather. However extra care should be taken when installations occur in temperatures below 40°F (4.4°C) and you should consult with CeDUR or a professional contractor if you are going to install CeDUR in temperatures below 40°F (4.4°C).

  • CeDUR is certified to a wind speed of 115 miles per hour (3 second gust) with a mean roof height no greater than 40 feet. Above 115 mile per hour wind resistance, installations are considered high wind and CeDUR should be consulted for proper design. By decreasing the exposure we are able to withstand greater wind speed. CeDUR is warrantied for wind speeds up to 90 miles per hour. For more information contact the CeDUR Technical Team at (720) 974-9200.

  • With installations dating back to 1998 CeDUR has been one of the leaders in the composite synthetic roofing product market. For over 20 years CeDUR has proven itself a reliable and dependable roofing material in one of nature's toughest testing grounds -the Western United States- where hail, wind, rain, fire, and snow conspire against all things man made.

  • The CeDUR Warranty is a 50 Year Lifetime Limited Warranty. Transferable in the first 5 years. Material and labor covered in first 10 years. Material pro rated after 10 year mark.

roofing installation for synthetic roof

Easy to Install Synthetic Roofing Products

A CeDUR synthetic roof is installed like natural cedar shakes. CeDUR features just three product pieces: 1) CeDUR Starter, 2) CeDUR Field material, and 3) CeDUR Hip and Ridge material. CeDUR installs direct to the roof deck and no special tools or hardware are required during installation.

Our light weight product composition makes our synthetic roofing products easy for roofing contractors to handle and install. This allows for easy installation on a roof’s valleys, eaves, gables, rakes, and hips because the CeDUR product can be easily cut and scored using a utility knife or skill saw to fit into tight and unique spaces on a roof without sacrificing appearance.


Not only is the product as easy to install as real wood shake, but it’s ability to stand up equally to heavy snow, high wind, or extreme heat have made it ideal to serve the various needs of our customers.
— Roofing Contractor | Southern Utah

Why Contractors prefer CeDUR Synthetic Roofing Products

Project Portfolio and Authentic Wood Colors

Enhance your project portfolio with beautiful CeDUR synthetic roof installations that show unsurpassed beauty and curb appeal. Each CeDUR synthetic shake is molded from natural cedar shakes and features unique grain patterns and depth. 50+ unique molds are randomized daily so every bundle of shipped material is truly unique. This gives your roof deep shadow lines, rich wood texture, and incredible depth and realism which makes for stunning curb appeal. Natural movement is designed into our product to give your roof the natural cedar shake appearance. A CeDUR roof provides depth, dimension, thickness, texture, and deep grain patterns that you expect from the most realistic imitation shake.

Our colors are designed and engineered to emulate the authentic beauty of natural cedar shakes. While other roofing alternatives claim to offer the real wood shake look, none can match the authentic wood beauty of CeDUR synthetic roofing products. Other roofing products that attempt to look like natural cedar shakes are simply unauthentic and have a sheen look and shiny appearance in direct sunlight. CeDUR synthetic shakes will, by design, shift color upon exposure to the sun. CeDUR implements a proprietary color system designed to gradually weather to natural wood tones up to the first 90-120 days of installation (depending on time and intensity of sun exposure), and then stabilizes at a weathered wood color for the life of the product. After that time period the color will set and remain constant over the life of the product.

  • Perfectly replicates the enduring wood beauty of heavy hand split natural cedar shakes

  • 50+ molds are randomized daily so every bundle of material is truly unique

  • Thick beautiful shadow lines provide stunning curb appeal

Trusted on Historical Projects and Historic Preservation Projects

CeDUR is trusted on historic landmarks and historical structures throughout the United States. This is because CeDUR makes it possible to match the original and intended wood shake look of a historic property while providing modern day performance characteristics. As a pioneer of polyurethane roofing materials since 1998, CeDUR has been a reliable roofing material for government projects, religious facilities, and educational buildings for decades. Preserving the historic wood look of an aged structure can be difficult, but you can trust CeDUR to provide any roof with the most authentic wood shake look.

  • Trusted on historic landmarks and historical structures

  • Helps maintain the architectural integrity of any property

  • Helps preserve the desirable wood shake look

synthetic roof in Colorado mountains

The Historic St. Benedict’s Monastery

CeDUR Walden roof installed by Horn Brothers Roofing on the historic St. Benedict’s Monastery in Snowmass, Colorado

Higher Margins and Solid Product Composition

Your bottom line is important to your business. Increase your margins per project by installing a premium high end roofing product. CeDUR features color through pigmentation and Closed Cell Technology which allows color to permeate all the way through our product instead of being applied to just the surface of the product. In other words, CeDUR is a solid product from top to bottom and front to back. CeDUR is not a hollow back or cavity back roofing product, so on the back side of the product you will not notice a waffle like structure. Instead CeDUR is solid throughout with color through pigmentation. This allows for easy installation on a roof’s valleys, eaves, gable, rake, and hips because the CeDUR product can be easily cut and scored using a utility knife to fit into tight or unique spaces on your roof without sacrificing appearance.

Our proprietary polyurethane manufacturing process allows CeDUR synthetic wood shakes to be solid throughout and extremely light weight and durable. CeDUR features a Class 4 Impact Resistance Rating, stand-alone Class A Fire Rating, and a 50 Year Lifetime Limited Warranty. These are the highest ratings available in the industry. CeDUR is the best alternative to cedar shakes and can be installed in any climate or environment. CeDUR synthetic shakes are extremely durable and resistant to heavy snow, damaging hail, freeze / thaw cycles and high wind.

  • Class A Fire Rating - ASTM E108, UL 790

    • No special fire-resistant underlayment is required during installation to achieve the Class A Fire Rating

  • Wind resistant - certified to 115 mph wind - warrantied to 90 mph

  • Class 4 Impact Rating - UL 2218 Impact Rating

  • 50 Year Lifetime Limited Warranty

Light Weight and Easy to Install

CeDUR is one of the lightest roofing products available for purchase. At just 170 pounds per square (1 square = 100 square feet on your roof), CeDUR synthetic shakes are lighter than architectural asphalt shingles, clay tile, concrete, recycled rubber, and slate. Our lightweight product composition makes the product easy for roofing contractors to handle and install. CeDUR does not have a cavity back so you can cut and score the product with a utility knife or skill saw. This allows for easy installation on your roof’s valleys, eaves, gable, rake, and hips because the CeDUR product can be easily cut and scored using a utility knife to fit into tight or unique spaces on your roof without sacrificing appearance.

  • Lightweight - no structural modifications are necessary prior to installation

  • No special tools or accessories are required

  • Does not require a special batten system

  • Can be installed in staggered courses

  • Can be installed in straight courses

  • Installs like natural cedar shakes

Unlike other roofing products that may require a batten system prior to roof installation, CeDUR installs direct to the roof deck and no special tools or hardware are required during installation. Our synthetic roofing products do not require a special batten system during installation or the need for costly structural weight modifications or special reinforcement to the roof structure.

CeDUR is installed in a similar fashion to natural cedar wood shakes. If you have experience installing wood shakes or wood shingles, you can install CeDUR. Our lightweight product composition means there is no need to consult with a structural engineer prior to installation. We feature just three product pieces: shake, starter, hip and ridge.


CeDUR Synthetic Roofing Products and Sizing

Please note: Chalk lines should be snapped on the underlayment with the tips of the shakes following the lines. Do not snap lines on the CeDUR shakes or use red chalk as the chalk may permanently discolor the shakes. Material pallets should not be stacked more than two pallets high. During roof installation, please ensure proper keyway spacing between shakes and proper course alignment. Keyways should not line up vertically from course to course. More information is below.

Click here to view or download CeDUR Installation Recommendations.

Click here to view more CeDUR Technical Information.

CeDUR starter material, which is necessary to begin a CeDUR roof installation

CeDUR hip and ridge material available in 3 sizes

Our multi width shakes in 50+ molds create the most beautiful natural wood appearance and a unique variation of shakes in each bundle. Our molds are randomized daily so every bundle of material is truly unique.


Want to view more CeDUR Technical Information?


synthetic walden roof

CeDUR Walden roof installed by Three Tree Roofing


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