We wanted to upgrade our 100-year-old Chicago bungalow


The investment we made in a new aluminum slate style shingle roof was much more than we wanted to spend, but when we analyzed the pros and cons, including the cost, it came out ahead. We wanted to upgrade our 100-year-old Chicago bungalow and, in particular, rejuvenate the attic and basement spaces. We also want to install a solar panel array on the roof while the current incentives with the IRS, the state and the utility net metering system are still in effect. We wanted to reduce the massive composite shingle tonnage that is covering the incredible sea of roofs across the land. This is undoubtedly a rather large carbon footprint and the short lifespan of many roofs (10-15 years) are causing us to fill and foul unsustainable dumpsites.

The weight of our aluminum roof is less than 850 lbs., compared to 3-4 tons of architectural composite shingles. The Interlock roof is a lifetime roof warrantied for 50 years. When/if it is ever replaced, it will be completely recycle-able.

Much of the heat captured by composite shingle roofs is reflected by the aluminum. Previously, our attic could reach temperatures near 130°F. We have seen a significant reduction in afternoon attic temps, 10-20 degrees.

The installers, Jesse, Sal and Ben were very professional, safe and kind to us. They took the extra time to do it right and solve problems rather than take an easier route. They maintained social distancing and wore masks when necessary. They screwed down OSB sheathing on the existing 100-year-old deck boards which are stamped Sterling Lumber and Supply Co. “The Yards with the Stock”. This company was located two blocks from our house in the early 1900s. Interlock continues a tradition from Sterling Lumber to build to last a lifetime. The original 1919 roof rafters were 2″x4″x16′ and held up under numerous Chicago blizzards and storms. Prior to the project, we augmented the rafters with 2″x6″x16′ #1 southern yellow pine. Hopefully, the roof will bear another century of Chicago climate change.

The Interlock Industries’ workers installed 95 snow guards to breakup snow slides off the roof. The roof is very attractive and my neighbors have complemented the looks of it. The siding on the dormers were also replaced with the aluminum shingles. We had a choice of several shingle colors and chose one called gunflint. The shingles have a slate-like surface that is embossed on the aluminum to give it a textured appearance and perhaps breakup wind and water flows. The Interlock installers removed and sheathed over the chimney and vent caps and added a ridge vent. They installed soffit vents which apparently were never a feature of the house. They removed the gutters and reinstalled them in order to fit the drip edge flashing and lock down the shingles. Everything is fastened with screws powered by cordless screw guns. They did not use air compressors. They had safety lanyards attached to the ridge and foot boards around the perimeter of the roof throughout the installation.

We are very satisfied with the look of our new roof and ready to install solar panels which won’t have to be removed to re-roof because the roof will probably last longer than the solar panels. We are not young anymore and the long-term value of this project will most likely benefit others and the neighborhood more than us, but for the time being, we are happy customers.

William P.
Chicago, IL



Interlock Metal Roofing is an amazing company to do business with

Chicago, Illinois


Interlock Metal Roofing is an amazing company to do business with. My salesperson John was professional and knowledgeable. It is a big investment, but absolutely worth it. The installation crew was on time, hardworking and conscientious. I highly recommend this company to anyone who wants a roof to last 100 years!

Ken Cox
Chicago, IL 60645

Guildquality Review

The roof looks exceptional!

Chicago, Illinois


Dear John,

We were in the market for a roof and knew we wanted a metal roof. Came across Interlock while doing some research and contacted them immediately. While it is on the pricey side, knowing that this roof will last a lifetime is very comforting.

At the time of this review we’ve only had it for a week. The weather hasn’t been terribly hot to determine if its cooler. Other than that, the roof looks exceptional! Plenty of materials for the roof were delivered a day prior to installation and quite a few materials were even left over. The existing roof didn’t require removal before installation which made it possible to install over it and completed in five days. There was a rainstorm one of the days otherwise they would’ve completed the installation in four days.

The three-man crew (Salvador, Esteban & Humberto) were very courteous, knowledgeable professional, and took pride in their work. Under the supervision of Jesse and the young man (Benjamin) cleaning up the area made the installation run quickly and smoothly. The entire team were a pleasure to work with!

Highly recommend Interlock!
Bradley Family
Roselle, IL 60649

Guildquality Review

A metal roof was the best option for our needs

Chicago, Illinois


My wife recently purchased our home, and we were aware that the roof was getting close to end of life.
We researched a few different options and came across Interlock Metal Roof. After meeting with John from InterLock, it became clear to us that a metal roof was the best option for our needs. We plan to live in our home for 30+ years, and while a metal roof is more expensive than a traditional roof, it will be more than worth it over that period of time. We will never have to replace our roof again! It was also great to know that the roof could be installed over the existing shingles, reducing both the mess of the project and the waste created by the old shingles. Jesse and his crew did a great job installing the new roof, and we could not be happier with both the look and the quality of the aluminum shingles. 

We would recommend InterLock to anyone considering replacing their roof.

Thank you InterLock for a great experience and a fantastic roof!
Steve and Claire,
Chicago, IL 60630

Guildquality Review

Stunning red hidden tile aluminum Interlock roof


I wanted to write and thank you for all your efforts in working with us to put in Interlock roof on our home. It was a big decision and all during the process, I felt like you really had our interests at heart. You never tired of answering my questions and your follow-up, whenever I needed to speak with you, was first rate.

I think we had three Interlock crews involved in our project. First came the tear-off guys, who, in our case, had to remove a cedar shake roof before any other improvements could take place. Second, came the install crew, led by “Nacho”, who is absolutely terrific to work with. Ours was a relatively complicated job, with lots of angles, overhangs, gables and pitch to deal with. Nacho made it happen. Finally, the cleanup crew. When Interlock left the job site, my expectations were exceeded. No landscaping was damaged and the debris was all cleared away.

Now, we have a stunning red hidden tile aluminum Interlock roof to look at and enjoy. Perhaps most enjoyable is knowing there will never need to be another roof put on this house. Already, after just a few weeks, we have received numerous compliments from neighbors and friends and see a lot of people slowing in their cars to get a better look.

Bob, thanks to you and all the Interlock staff again for your assistance in making this experience a positive one.


Bill H.
Chicago, IL

Guildquality Review