Architect Checking Insulation During House Construction

Parapet Wall Repair In Chicago

Why parapet wall maintenance is important… 


A parapet is a low wall constructed above the roofline that usually spans around the perimeter of a building. Parapets may be purely aesthetic or functional, as they can hide mechanical equipment or act as a fire barrier.

The top of a parapet wall is vulnerable to moisture penetration problems. Choosing an appropriate cap is an effective way to eliminate potential water damage. CTC Masonry’s services for parapet wall repair in Chicago include tuckpointing, rebuilding, waterproofing, and more. We provide a variety of materials to cap off the wall. These materials include:

  • Limestone
  • Terra cotta/clay
  • Precast concrete

These materials have different physical properties – choosing one over the other largely depends on the application and the aesthetic appeal you are looking for. We’re well versed in brick and concrete block repair, making us your best choice for parapet repair no matter what you have.

CTC Masonry takes on all types of parapet wall repair in Chicago using a variety of techniques. When the back side of the wall is completely exposed, both outer wythes should be constructed of the same material with brick on the backside. This brick should be protected by a roofing membrane or a chemical water repellent. Our parapet wall waterproofing methods are both proven and effective.

Signs of a damaged parapet

Our team can come out and inspect your walls for evidence of damage. If you notice any of these warning signs, it might be time for you to call us for expert parapet wall repair:

  • Noticeable gaps or holes in your mortar joints
  • Discolored bricks and/or mortar
  • Vertical cracking, spalling, or other signs of deteriorating mortar
  • Cracked, loose, or missing bricks
  • Bricks that are displaced or compressed
  • Capping or coping material that has been dislodged
  • Horizontal cracking seen around your roof line

Reasons for parapet wall deterioration…

  • Improper flashing installation 
  • Improper coping material
  • Failure of masonry due to weathering
  • Water damage

With the harsh seasons Chicago experiences, it is important to properly maintain these walls, as they are an important component of the masonry and roofing system.

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Frequently Asked Questions

How do I protect my parapet wall?
Preventing moisture from getting underneath your roof membrane is the most important thing to do if you want your parapet wall from becoming damaged. Our parapet waterproofing services will ensure any vulnerabilities will be taken care of before the worst-case scenario becomes reality.

What is the purpose of my parapet?
Your parapet helps protect your roof membrane from wind damage, fire, moisture, and debris. If any of these have a chance to affect your membrane, it can lead to much bigger problems down the road. This is why you need to call us right away for parapet wall rebuilding or other repair services when you notice any signs of deterioration.

How do I stop my parapet wall from leaking?
Ensuring your wall copings and aluminum flashing fit properly will help protect your parapet wall from leaking and being exposed to potential water damage.

What is parapet coping?
This refers to a cap or cover that is installed along the top edge of a wall. It typically is made from waterproof materials and slants or slopes to allow water to run off it, preventing it from getting into masonry and causing damage.


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