Parapet Wall Repairs and Rebuilding

What is the definition of parapet?

A parapet is a barrier, extending above the roofline, balcony, terrace or other structure and is generally called a parapet wall. This masonry wall adds strength and stability to masonry structures and provides protection from roof collapses and provides fall protection for those working on flat roofs. When completed by a qualified mason, the parapet wall typically incorporates visually appealing patterns, designs or metal cornices.

Why Is Parapet Rebuilding or Repair Important?

Because the parapet is the tallest portion of the building, it takes on the most severe weathering of the building and needs protection from the elements. Moisture penetration problems are the source of parapet deterioration. Common causes of water infiltration are:

Failed/deteriorated caulking joints primarily on coping stones.
Failing coping caps.
Deteriorated mortar joints that were not repointed in a timely manner.
Failure of roof flashing or water getting behind roofing termination starting on the top of a parapet wall, if an ineffective cap was chosen for the wall.

It’s important to hire a contractor that understands how all three trades (sheet metal, roofing and masonry) need to coordinate for effective repairs on keeping the parapet in working shape. Although we don’t perform sheet metal or roofing work, we have good working relationships with top contractors to make sure repairs are done in the appropriate manner.

To get an idea of how dangerous a poorly maintained parapet can be, perform an internet search for parapet failures and you can see how catastrophic it can be. In prioritizing your aging building’s maintenance, parapet rebuilding or repair should surely be at the top of your list.

Parapet Rebuilding & Repair

Parapet repair or rebuilding can help prevent further deterioration of your structure. With the harsh weather elements we experience in the Midwest, it’s important to properly maintain or repair parapet walls; they’re an important component of any masonry and roofing system.

Parapet walls can be difficult to access or easily see, which is why many building owners, property managers and administrators don’t often know that their parapet walls need rebuilt or repaired.

Some indicators that your parapet walls may need repaired are:

White efflorescence on the exterior of the brick (powdery white)
Bulging or tipping walls
Visible open mortar joints
Water penetration on the interior of the building
Roof detaching from the parapet wall