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R&A Contracting - ponding water commercial roof St. Louis

The winter winds are howling through the Lou and we’re shivering our way through the holidays. The winter is also a high-risk time for developing ponding on your warehouse or office building roof. Water tends to collect on flatter roofs, especially when temperature is close to freezing, an effect we know as ‘ponding’.

Ponding water does not have the natural slope to run off into gutters and downspouts. It can accelerate the deterioration of your roofing material in any season. The added risk is when ponding water begins to freeze on commercial roofing systems.

Now, you may not know that ice actually weighs less than water:

  • A cubic foot of water weighs approximately 62.4 lb.
  • A cubic foot of ice weighs approximately 57.2 lb., over five pounds less than a cubic foot of water!

Water expands as it freezes into ice, which is why a gallon of water takes up less space than a gallon of ice. In fact, it’s because water expands into ice that pipes burst during the winter. The freezing water has nowhere to expand and the pressure eventually ruptures the piping.

Imagine your 30,000 square foot roof holding several gallons, maybe even over a hundred gallons of water. As we learned earlier, ice weighs less than water, but it also takes up more space. If you have ponding water trapped inside a more confined space, such as between exhaust pipes on your roof, the freezing water has less room to expand into ice. This places added pressure on any of your roofing structure in contact with the water. The end result may be a rupture in your roofing surface that you may not realize until the ice melts and water invades the new opening.

Of course, we don’t share these details with you to make you overly cautious about any water being on your roof. Water is supposed to be on your roof because it’s better than water being in your building.:) The important distinction is whether the water is sticking around, or ‘ponding,’ on your roof surface.

Our R&A Contracting team is trained and experienced in correcting ponding issues for commercial roofing. We provide complimentary on-site inspections to evaluate the cause of ponding on your roof. The solution is often non-invasive and affordable. We help you make minor calculated changes to your roof to avoid major repairs or even replacements in the future.

Contact our team to get started today.

I’d be an idiot if I did not take this opportunity to communicate to you how much we appreciate the way in which you conduct business and take care of our facility. In my experience you, and your team, are at the top of the list of all the roofing companies I’ve dealt with over the years. Thank you!

Jim Lowry - Bissinger's Handcrafted Chocolatier

Eric and crew were really nice to have around. They were courteous, careful and caused little if any disruption. Their work looks good too! To be honest… a good experience with a product that I initially had misgivings about. I’m a convert because of Bubba, Sam and Eric. Thank you.

Jim Lowry - Bissinger's Handcrafted Chocolatier

“I want to thank the crew at R&A for a job well done on our very leaky roof at the shop. It is certainly nice to have the drips and rivers gone from the shop when it is raining. I also wanted you to know how much we appreciated that the guys were able to stay out of our way and allowed us to do business as usual without any problems or interruptions. The roof looks great and the clean-up after the job made it so we couldn’t even tell you’d been here. Thanks for doing what you do so well!”

Jay Moore, President of Safe Way Tire and Auto Center

“My wife and I were on vacation when water pipes burst in our house. We got a hold of Craig and the R&A crew was able to start evacuating the water immediately. The best part was that they were able to start work before we even returned home. It was a very fast turnaround considering the extensive amount of water damage.”

Will from Dardenne Prairie, MO

“Craig and Mike came out in a timely fashion when we needed the work done. They did a reliable and quality job.”

Jerry from SLR Properties

“Craig helped us out tremendously with the insurance process. Timely and very professional.”

Lindell from Greater Missouri Builders (GMB)

“We purchased a house and there was some damage to the roof. Very impressed with the thoroughness of Mike’s inspection. Very comfortable with their explanation of what needed to be fixed. Most impressive was the way they protected our landscaping. Really liked the way they treated me as a valued customer, even though it was only a small project.”

Ross from Troy, MO

“I use R&A Contracting when my commercial roofs receive storm damage. They work on our behalf through every step of the insurance claim process. They perform all of the work and complete the insurance process, making our roofs better than they were before the storm.”

Director of Facilities for a large Property Management Company

“The team at R & A Contracting responded immediately when notified of our water disaster. They removed water-damaged materials and property quickly and restored our home even before the final settlement from our insurance company. They minimized how long our family had to live in a hotel and got us back to normal as fast as possible.”

Will from O'Fallon, MO