R&A University

Updates, news, and information to educate and empower owners.


Vented Attic R&A Contracting

Are vented attics or conditioned attics better for commercial buildings?

Business owners have been asking this question for years. Vented attics have been around for centuries. If your building has a vented attic, rest assured that there’s nothing inherently wrong with vented attics. The best way for vented attics to be energy-efficient is by having both an airtight ceiling and proper air flow for the vents.

The ventilation access and air flow of a vented attic needs to meet two important criteria:

  1. 1:150 ratio for cross ventilation
  2. 1:300 ratio for balanced ventilation

The design of your building for the purpose of a vented attic means you may need to apply more insulation or caulk around certain openings in the building envelope, such as skylights, can lights, exhaust pipes, and more. If a building is properly secured, a vented attic can be an excellent solution for your building’s energy.

The problem is that very few builders, if any at all, are going to position the building’s mechanical system inside the building. The real estate that the mechanical system requires is too valuable. So, you can either redirect the ductwork through drop ceilings, soffits, and all other forms of retrofitting nightmares, or there’s another way.

R&A Contracting can apply a layer of spray foam on the underside of the attic’s roof deck to alter the building’s energy envelope. This creates a conditioned attic that protects your building’s interior with the hassle of redirecting ducts and other important building elements.

If you have questions about how to change your vented attic into a conditioned attic, we’d love to talk with you. Contact our R&A Contracting team here to start a conversation. We serve the greater St. Louis area and we love helping our neighborhood business owners, like yourself, keep a safe and energy-efficient roof over your head.

Vented Attic R&A Contracting

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