Dunne Roofing Company 847-696-1643 (Commercial)

If it's not done right it's not Dunne Roofing

Dunne Roofing Company

310 Busse Highway #271

Park Ridge, IL 60068

847-696-1643
847-696 1641
847-696-1642 Fax
773-287-0898
773-287-9779

Bonded, Insured, Member of NRCA

Call for a free consultation today

Commercial Roofing

Flat, or low sloped roofs CAN present unique problems for the building owner. Many material applications for flat roofs can be unreliable. Unskilled installation of good materials will lead to the failure of the roof system.

Dunne Roofing has good solutions for any flat roof. A roof that will finally give you peace of mind, and confidence that your roof is water tight for MANY years to come.

Built Up Roof (BUR)

A Built up roof, commonly known to consumers as a "tar" or "tar and gravel" roof. is a system composed of three to five layers of asphalt felt laminated with coal hot tar, pitch or hot asphalt. Finished with a flood coat of the pitch or asphalt. Frequently gravel is added for UV protection, or the application of a reflective coating.

As with any roof system, proper installation will determine the actual service life of the roof.

Modified Bitumen

Modified Bitumen (MB) is asphalt that has had modifiers added to it to give it plastic or rubber-like properties. The most common types of modifiers being used are APP (Atactic Polypropylene) and SBS (Styrene Butadiene Styrene).

Modified comes in rolls, with a variety of surfacings available, such as granules, aluminum, copper, or an aggregate (added after installation) such as gravel or slag. A modified roof system can be torched down, or hot mopped applied, consisting of a one, two or three ply system. APP is torched applied, SBS can be torched or hot mopped.

We have seen 15 year old modified installations that are still functioning relatively well, on the other hand we have replaced five year old installations. Quality installation is imperative on this system for longevity. The average one ply modified system can be expected to last 9 - 10 years.