What Causes a Flat Roof to Leak?

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

  • MiEN Releases White Paper on Community College Space Innovation

    MiEN Company recently released a new white paper called “Designing New Innovative Spaces for Community Colleges” to address the needs of community colleges post-pandemic, according to a news release. The eight-page guide by Dr. Christina Counts, MiEN Company VP of Education and Marketing, covers topics like the enrollment drop that these schools have seen since COVID-19, the roles they play in higher education and local workforces, and five suggested key changes that can improve students’ experiences.

  • New Jersey PreK–12 School Breaks Ground on New STEM Building

    Saddle River Day School (SRDS) in Saddle River, N.J., recently announced that it has broken ground on the new Dr. Kristen Walsh Hall of Science & Entrepreneurship, according to a news release. The school partnered with DIGroup Architecture for the design of the new facility, which will provide the school with space to expand its STEM and business education classes.

  • modern college building with circuit and brain motifs

    Anthropic Introduces Claude for Education

    Anthropic has launched a version of its Claude AI assistant tailored for higher education institutions. Claude for Education "gives academic institutions secure, reliable AI access for their entire community," the company said, to enable colleges and universities to develop and implement AI-enabled approaches across teaching, learning, and administration.

  • Image courtesy of Armstrong International

    The Modern Hot Water System Approach to Keep Higher Education Buildings Safe and Operational

    Higher education campuses face unique structural and operational demands. With a range of old and new buildings, a variety of facility types, and ambitious sustainability goals, it's essential that no aspect of infrastructural performance is overlooked. Facility managers must be equipped to provide a safe, reliable and efficient space for students, faculty and guests.

Digital Edition