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Writer's pictureTony Biggar

How Can Improper Drainage Lead to Commercial Roof Leaks?

Updated: Oct 6


In this article, we'll explore the various ways poor drainage can lead to leaks and other roofing issues, and how drone technology is revolutionizing the way we detect and prevent these problems.


Table of Contents


The Importance of Proper Drainage

Proper drainage is crucial for the longevity and performance of any commercial roof, especially in Sioux Falls where we experience a range of weather conditions throughout the year. A well-designed drainage system efficiently channels water off the roof, preventing it from pooling or seeping into vulnerable areas.


"If water sits in one place too long, it can add too much stress and weight to the roof. If the roof is already older or otherwise compromised, leaks are bound to seep through."

Common Drainage Issues

Several factors can contribute to improper drainage on commercial roofs:


1. Clogged gutters and downspouts

2. Inadequate slope or pitch

3. Poorly designed or insufficient drainage systems

4. Damaged or deteriorated roofing materials

5. Improperly installed or maintained roof penetrations


In Sioux Falls, and South Dakota in general, where we experience significant snowfall and spring rains, these issues can be particularly problematic if not addressed promptly.


How Improper Drainage Causes Leaks

Improper drainage can lead to roof leaks in several ways:


Ponding Water

When water doesn't drain properly, it can accumulate in low spots on the roof, creating "ponds." Over time, this standing water can degrade roofing materials and find its way through even the smallest vulnerabilities in the roof membrane.


Increased Weight Load

Accumulated water adds significant weight to the roof structure. This extra stress can cause the roof to sag, creating more low spots where water can collect and potentially leading to structural damage.


Freeze-Thaw Cycles

In Sioux Falls' climate, ponding water can be particularly damaging due to freeze-thaw cycles. As water freezes and expands, it can create or widen cracks in the roofing material, leading to leaks when the ice melts.


Accelerated Wear and Tear

Constant exposure to standing water can accelerate the deterioration of roofing materials, shortening the lifespan of your roof and increasing the likelihood of leaks.



sioux falls inspection roof


Signs of Drainage Problems

Identifying drainage issues early is key to preventing leaks. Here are some signs to watch for:


1. Water stains on ceilings or walls

2. Visible ponding on the roof surface

3. Overflowing gutters during rain

4. Sagging or deformed roof areas

5. Vegetation growth on the roof


"Standing water allows for mold and mildew to grow and attracts pests like mosquitoes. The longer that water sits, the worse the roof is going to get."

Preventing Drainage-Related Leaks

Preventing drainage-related leaks involves a combination of proper design, regular maintenance, and timely repairs:


1. Ensure adequate roof slope

2. Install and maintain appropriate drainage systems

3. Regularly clean gutters and downspouts

4. Conduct routine roof inspections

5. Address any damage or deterioration promptly


In Sioux Falls, where weather conditions can be harsh, it's particularly important to have a proactive approach to roof maintenance.


The Role of Drone Inspections

Drone technology has revolutionized the way we conduct commercial roof inspections, especially when it comes to identifying drainage issues:


1. Comprehensive Coverage: Drones can easily access and document all areas of your roof, including hard-to-reach spots where drainage problems often occur.


2. High-Resolution Imagery: Our drones capture detailed images that allow us to spot even minor issues with drainage systems or ponding water.


3. Thermal Imaging: Some of our drones are equipped with thermal cameras, which can detect temperature differences that might indicate water accumulation or insulation issues.


4. Efficient Inspections: We can inspect large roof areas quickly, allowing for more frequent inspections without disrupting your business operations.


"Regular inspections can check for weathering damage, and reflective coatings may be applied to some roof types to reduce UV exposure and thermal shock."

Maintaining Your Commercial Roof

To keep your commercial roof in top condition and prevent drainage-related leaks, consider implementing a regular maintenance program:


1. Schedule bi-annual inspections (spring and fall)

2. Clean gutters and downspouts regularly

3. Trim overhanging branches that could clog drainage systems

4. Repair any damage promptly

5. Consider installing additional drainage solutions if needed



roof warehouse Sioux falls


In the South Dakota area and upper Midwest regions, where we experience significant seasonal changes, it's crucial to adapt your maintenance routine to address the specific challenges of each season.


Improper drainage is a leading cause of commercial roof leaks, but with proper attention and maintenance, many of these issues can be prevented. By leveraging drone technology for regular inspections and addressing drainage problems promptly, you can extend the life of your commercial roof and avoid costly water damage to your building.


Don't wait for a leak to appear before addressing potential drainage issues. Schedule a drone inspection today and take a proactive approach to maintaining your commercial roof in Sioux Falls and in the upper Midwest in general.



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