Licensed · Bonded · Insured

(847) 336-7777

Home

Services Offered

New Roof Installations

Flat Roofs

Gutter & Downspouts

Repairs & Maintenance

Why Choose Onan

Free Estimate

Roofing Shingles

Contact Us

Onan Enterprises

Flat Roof Installations & Services:
  • Modified Bitumen
  • Roof Coatings
  • Flat Roof Repairs
  • Inspections & Maintenance

    Flat Roof Certifications:
  • Firestones App
  • Derbigum Gp App
  • Certain Teed Flintlastic Gta App
  • Mule-Hide S.A. Base-Fiberglass

    Flat roofs are horizontal roofing with very slight inclination (usually 10 degrees) Flat roofs can be made from different materials and substances. Flat roofs always have a base and a coating of some sort, all of which require inspection and maintenance on a regular basis.

    The life expectancy of a flat roof is relative to the amount of maintenance it receives. However, this can be influenced by the kind of material your flat roof is made of.

    Maintenance of a flat roof should include keeping roof drains clean and debris free, so that clogging won't prevent water from being drained, causing an overload of weight.

    Re-coating your flat roof which prevents degradation by the sun and provides a water-tight membrane.

    And lastly preventing water leaks. Approximately 90% of all flat roofs leaks are caused by insufficient maintenance of flashings.


    If you need a Flat roof Inspection please call us and we will be able to advise you on the right decision for your Flat roof. Currently Onan Roofers offers a wide variety of Modified bitumen roofing systems which includes the Firestone, Derbigum, Certain teed Flintastic, and the Mule-Hide.

     Firestone App Modified Bitumen Roofing Systems:
    Reinforced with tough, non woven polyester mat, Firestone App membranes deliver superior rooftop performance for both new and re-roof applications.

    Derbigum GP App Modified Bitumen Dual Reinforced Waterproofing Membrane:
    High quality 4.0mm smooth surface, dual reinforced with a glass mat and polyester scrim to provide superior resistance to weathering. Derbigum GP is a UV Resistance App Modified Bitumen Membrane that does not require a granule surfacing or a roof coating for protection, and has a proven durability of 25 years.


    Certain Teed Flintlastic GTA App Modified Bitumen:
    Produced with a high performance, non-woven polyester mat which is impregnated and coated with superior grade, modified bitumen compound.

    * Certain Teed Flintlastic is available in 8 popular colors: Click Here for Color Offerings


    Mule-Hide SA Base Sheet Modified Bitumen:
    Premium polyester reinforced, fire retardant modified bitumen membrane.

    All elements comprising this world wide web site are sole property of Onan Roofers, Waukegan, Illinois. Copyright © 2011. Any reproduction of the images, copy, design, or concept is prohibited.

    Web Hosting powered by Network Solutions®