What Causes a Flat Roof to Leak?

  • 03/01/17

Many campus buildings feature flat roofing. Because there is no pitch, these systems rely heavily on a combination of product quality, membranes and initial installation. Some reasons your flat roofs may develop leaks include:

Clogged Drainage
A flat roof relies on a drainage system to remove rain water. If the drainage system is clogged, water will pond on your roof. Ponding water eventually leads to excess strain on the roof, and inevitably the water will start to seep inside.

Damage to the Perimeter Flashing
Flashing is installed on the edges of the rooftop as well as the interior parapets to protect the roof’s membrane. Moisture and water can seep underneath this flashing and into the building if it is not installed correctly, or becomes damaged.

Open Penetrations
Penetrations are common on rooftops, including as drains and pipes. When these are not installed properly, they leave a roof prone to leaks. They should be kept watertight with flashing, wraps, rain collars and pitch pans.

Damage to the Membrane
When a roof’s membrane becomes damaged, it allows water to enter through the opening. Membranes can become damaged for a variety of reasons. Sometimes it is just a matter of age.

The Age of Your Roof
Flat roofing in areas that experience hot summers or harsh winters will eventually start to fail due to age. Most systems deteriorate at about 15 to 20 years post-installation.

This article originally appeared in the issue of .

Featured

  • Texas A&M Adds ALPR Technology to Parking Solutions

    Texas A&M University in College Station, Texas, recently integrated automatic license plate recognition (ALPR) technology into its parking services and enforcement strategies, according to a news release. The university’s Transportation Services division deployed Genetec AutoVu ALPR to manage the campus’ 36,000+ parking spaces.

  • UT-Austin Breaks Ground on 17-Story Business School

    The University of Texas at Austin recently broke ground on a new, 17-story facility that will serve as the new home for the school’s McCombs School of Business, according to university news. The groundbreaking ceremony took place on April 10 for Mulva Hall, which will include amenities like classrooms, academic department suites, research centers, faculty offices, the dean’s office, and gathering spaces.

  • California High School Debuts $35M Performing Arts Center

    Irvine High School in Irvine, Calif., recently opened its new Performing Arts Center built in partnership with C.W. Driver Companies, according to a news release. The facility cost $35 million and covers about 25,000 square feet.

  • Schools In Focus: Talking Campus Security with Mitch McKinley

    Furnishing the Future: Adaptive Solutions for Modern Learning Spaces

    On this episode of Schools in Focus, we'll talk about the role that classroom furniture plays in creating adaptive, flexible learning spaces. Our guest is Wesley Edmonds, the Director of Workplace, Adaptive Solutions at OFS.