Most property owners expect weather to be the primary threat to a flat roof. However, changes occurring within the building itself can sometimes create roofing problems. One example is building settlement, which can gradually affect the performance of an EPDM rubber roofing system.
At The Flat Roof Guys, we inspect flat roofs throughout Northeastern Pennsylvania and occasionally discover roofing issues that are connected to structural movement rather than roofing material failure.
What Is Building Settlement?
Building settlement occurs when a structure slowly shifts over time. This can happen as soil compresses, foundations adjust, or older buildings experience decades of natural movement.
A small amount of settlement is common in many structures. However, when movement becomes uneven, it can affect components throughout the building, including the roof system.
Because EPDM roofing membranes are designed to remain flexible, they can tolerate some movement. The problem arises when settlement creates stress that exceeds what the roofing components were designed to handle.
Signs Settlement May Be Affecting a Roof
Property owners may notice warning signs inside or outside the building, including:
- Cracks in interior walls
- Doors or windows that no longer close properly
- Uneven floors
- Changes in roof drainage patterns
- New ponding water areas
- Separation around flashing details
These issues do not automatically mean the roof is failing. However, they may indicate structural movement that should be evaluated.
Drainage Patterns Can Change
One of the most common roofing effects of settlement is altered drainage.
Flat roofs are designed to direct water toward drains, scuppers, or gutters. When portions of a building settle, water may begin collecting in areas that previously drained properly.
Over time, recurring ponding water can place additional stress on the EPDM membrane and increase the likelihood of future repairs.
Flashing Areas May Experience Stress
Roof flashing is designed to seal transitions where the roof meets walls, curbs, and other structures.
As a building shifts, these connections can experience tension. Flashing materials may begin pulling away from their original positions, creating gaps that allow water intrusion.
Because these changes often occur gradually, property owners may not notice a problem until an interior leak develops.
Early Detection Matters
The good news is that settlement-related roofing problems can often be identified during routine inspections.
A professional inspection can help determine whether drainage patterns have changed, flashing systems remain secure, and the EPDM membrane is showing signs of unusual stress.
Addressing small issues early is often far less expensive than waiting until water damage occurs.
Trust The Flat Roof Guys
At The Flat Roof Guys, we specialize in EPDM rubber roof inspections, repairs, maintenance, and replacements throughout Scranton, Wilkes-Barre, Hazleton, Bloomsburg, and surrounding NEPA communities.
If you’ve noticed new ponding water, unusual roof movement, or changes in your building’s structure, our team can help evaluate the condition of your flat roof and recommend the appropriate solution.
Contact The Flat Roof Guys today at (570) 332-1223 or office@theroofrepairguys.com to schedule a professional inspection.








