Chicago Flat Roofer

Choose Allendorfer Roofing for all your flat roofing needs and experience top-notch, reliable, and durable solutions from Chicago’s premier roofing experts.

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Chicago Flat Roofing for Commercial, Residential and Industrial Buildings

Flat roofs tend to be more vulnerable to leaks, punctures and blistering, which can be quite costly if there’s any damage to your property, possessions, and even severe injuries.

Allendorfer Roofing Company, Ltd. has been installing flat roofs in Chicago for over 125 years. We offer cost-effective roof systems to fit most budgets and situations. The manufacturers we partner with are some of the largest in the industry offering high quality products with labor and material warranties up to 30 years.

We specialize in re-roofing / re-covering, partial and complete roof removal and replacement, thermal and tapered insulation systems and custom made sheet metal accessories. All of our work is guaranteed. We pride ourselves on doing high quality work right, the first time.

The manufacturers we partner with are some of the largest in the industry offering high quality products with labor and material warranties up to 30 years.

Chimney On A Roof

Built-Up Roofing

Multiple layers of reinforced scrim or felt between moppings of asphalt or coal tar pitch has been a staple in Chicago roofing for well over 100 years. Top coatings of gravel embedded in asphalt or coal tar, asphalt top coat and aluminum coating offer different reflectivity for different situations.

Modified Bitumen Membranes

This material consists of fiberglass, polyester or a combination of both polyester and fiberglass scrim sheets laid between or set on top of molten modified asphalt and then cooled to form a pliable roof system in rolled form. The (2) types of modified bitumen products offered are APP (actactic polypropelene) and SBS (styrene butyl styrene). 

These are tough roofing products that are excellent in dealing with the weather extremes in the Chicago area and can handle foot traffic better than most other roof systems. Combine either product with built-up roofing plies and we can offer warranties up to 25 years. 

Many surfacings are available for these products such as asphalt emulsion, aluminum coat, granulated surfacing in different colors, asphalt and gravel and acrylic coatings. This roof system is one of the most popular roofs being installed in Chicago.

Roofer Preparing Roof For Installation
Men Working On A Commercial Roof

White Membrane Systems

Multiple layers of reinforced scrim or felt between moppings of asphalt or coal tar pitch has been a staple in Chicago roofing for well over 100 years. Top coatings of gravel embedded in asphalt or coal tar, asphalt top coat and aluminum coating offer different reflectivity for different situations.

Frequently Asked Questions

At Allendorfer Roofing, we recommend EPDM membranes as the top choice for flat roofing due to their affordability, simple installation, remarkable durability, long lifespan, and stylish finish. These factors make EPDM an excellent option for flat roofing solutions offered by Allendorfer Roofing.

One of the main advantages of flat roofs is their lower costs for both construction and repair. Flat roofs require less material, making them more cost-efficient during the initial construction process, but also saving money if any repairs become necessary in the future.

Roofing Services

Here For All Your Roofing Needs

Commercial Roofing

Commercial roofing solutions from Allendorfer Roofing ensure durable and reliable protection for your business.

Residential Roofing

Allendorfer Roofing provides custom and high-quality residential roofing solutions for a safe and beautiful home.

Industrial Roofing

We offer durable and efficient industrial roofing solutions to keep your operations running smoothly.

Roofing Estimates

Get a precise and fair roofing estimate from Allendorfer Roofing to plan your next roofing project with confidence.

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What Our Customers Say

Lanz Garcia
Lanz Garcia
2022-04-04
Excelente trabajo
Joe Olivier
Joe Olivier
2020-12-03
My front porch roof and gutters were destroyed by a fallen tree during a storm. I received three bids for the job and Allendorfer came in the middle, but they were the most thorough in terms of their written estimate. Work went smoothly once they received the deposit and the work was done very well. Communication with the office was great. I plan on working with Allendorfer in the future for any roofing and gutter work and will recommend to friends and family.
Dm Ws
DM WS
2019-09-17
Outstanding job. Did a 90' x 30' flat condo roof in the 60656 area. Starting work on a 40+ year disaster and left it a "shining gem". Commercial gutters, downspouts, rebuilt the chimney and installed a cap. Building is unrecognizable. The top floor can't say enough good things about the insulation and noise reduction. If you are looking for decent, honest people who know their stuff than please give them a chance. Fair pricing, top quality materials (not second hand knock offs) and punctual top notch performance. Thank you Rich and crew for an outstanding job, peace of mind, patience and a sense of humor.
Roger Clemson
Roger Clemson
2019-04-17
Excellent roofers who were punctual, hardworking and did a great job fixing our roof. We recommend Allendorfer Roofing as a professional and honest company that does the job. Thank you Conrad and Richard and your roofing crew.

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