Many healthcare buildings, especially older Type I and Type II facilities, face a persistent and often costly issue when it comes to flat roofing systems: ponding water. These structures, built 60 or more years ago, were constructed under building codes that are now outdated. As a result, they often feature near zero slope roofs with inadequate drainage infrastructure. For facility managers and property owners, understanding the risks of ponding water and the solutions available is critical when planning a roof replacement, restoration or other hospital roofing services.
Shark Commercial Roofing Systems understands the idiosyncrasies of hospital roofing systems. Call 213-466-0074 to schedule your consultation today.
Why Flat Roofs in Healthcare Facilities Are at Risk
Flat roofing systems on older medical facilities were commonly built with minimal slope, which makes it difficult for water to flow naturally toward drains. Over time, this leads to areas where water consistently collects, commonly referred to as “ponding areas.” These low points can remain wet for days after rain, contributing to long term roofing issues.
Compounding the problem is debris accumulation. As water sits in these ponding zones, it attracts and collects dirt. This buildup heats up under the sun, leading to degradation of the waterproofing system. The combination of water and debris accelerates membrane breakdown and can ultimately cause leaks, mold, and internal damage to the building.
Restoration vs. Replacement: The Drainage Factor
Whether you’re restoring a flat roof or replacing it entirely, drainage should be a key consideration. Simply covering up existing problem areas without addressing the water flow will only delay future failures. In many cases, budget allocations need to account for substantial drainage improvements to prevent recurring issues.
Two of the most common solutions for managing ponding water are:
- Installing New Roof Drains: Cutting in new drains can effectively remove water from critical areas but is labor intensive and requires coordination with plumbing systems.
- Building Up Crickets and Slopes: A cricket is a tapered design element added beneath the roofing membrane to redirect water flow. This solution can help move water toward drains but requires elevation changes, which often involve significant material and labor costs.
Complexity with Medical Facilities
While adding drains or slope building systems may seem straightforward, healthcare buildings come with unique challenges. Flat roofs on hospitals and medical centers often have a web of existing conduit lines, ductwork, and mechanical systems sitting extremely low to the roof deck. These obstructions limit access and make even simple upgrades more labor intensive and costly.
For instance, pulling up conduits or relocating piping to install a new drain might require temporarily shutting down essential systems or working around critical infrastructure like electrical lines and oxygen supply. This level of complexity not only drives up cost but also demands expert planning and skilled labor.
Budgeting for Long Term ROI
When preparing your budget for a commercial roofing project on a healthcare facility, it’s crucial to include drainage upgrades as a line item. Ignoring this component may lead to short lived improvements that fail to resolve underlying issues.
Overall, addressing ponding water will protect the roof system, improve energy efficiency, and help maintain interior comfort and safety. Working with an experienced commercial roofing provider ensures that your budget, scope, and expectations are aligned with the realities of your building’s condition.
Keeping your hospital or medical facility roof in great shape is a combination of using the right materials, managing the right maintenance, and partnering with the right roofing contractor. Call 213-466-0074 to speak with a Shark Commercial Roofing Systems expert today.
FAQ
What causes ponding water on flat roofs in healthcare facilities?
Ponding is usually caused by insufficient slope and inadequate drainage. Over time, older roofs settle or sag, creating low points where water collects.
Can roof coatings help with ponding issues?
Roof coatings can temporarily improve waterproofing, but they don’t solve underlying drainage problems. For lasting results, water must be redirected off the roof.
How much should I budget for drainage improvements during roof restoration?
Costs vary depending on roof complexity, conduit obstruction, and access. It’s best to consult a professional roofing contractor for an accurate site specific estimate.