Monthly Archives: June 2025

Flat roofs are a popular design choice for modern buildings, offering a sleek, contemporary appearance and efficient use of space. They are often used for commercial buildings, residential homes, and even outdoor areas like rooftop gardens or terraces. However, despite their clean look and practical design, flat roofs have some common problems—problems that you can fix when you know what to do. Proper care and maintenance are essential to addressing these challenges and ensuring your roof’s longevity.

Ponding Water

Ponding water is one of the most frequent problems with flat roofs. Ponding happens when rainwater collects in puddles on the roof and fails to drain properly. Over time, standing water can weaken roofing materials, cause structural damage, and lead to leaks.

To fix ponding water, install additional drainage systems, such as scuppers or internal drains, to help water flow off the roof. Alternatively, you can use tapered insulation to create a slight slope, directing water toward the drains. Regular inspections can prevent long-term damage by identifying drainage issues early.

Leaks and Moisture Damage

Because flat roofs don’t have the natural runoff provided by sloped roofs, they are particularly prone to leaks. Moisture damage can lead to water stains, mold growth, and roof structure weakness.

To prevent leaks, use waterproof coatings, flashing tapes, a durable sealant, or other quality RoofKit Roofing repair products to close any gaps or cracks. For long-term solutions, invest in high-quality waterproofing materials. In addition, regularly inspect your roof, especially after heavy rain, to catch leaks before they become widespread problems.

Membrane Damage

The roofing membrane is a crucial component of flat roofs, acting as the primary barrier against water intrusion. However, it can sustain damage from debris, foot traffic, or extreme weather conditions. Tears, punctures, or general wear and tear on the membrane can compromise the roof’s waterproofing abilities.

You can repair minor damage by applying a sealing compound or patching the area with a compatible membrane material. For larger sections of damage, consider replacing the affected section entirely. Using protective walkways or mats can also minimize wear caused by frequent foot traffic.

Pooling Around HVAC Units

Many flat roofs house HVAC systems and other equipment, and water can pool around their bases. These pools can accelerate material degradation and increase the risk of leaks. Thankfully, you can resolve this issue by installing protective RoofKit Roofing flashing around the base of your HVAC unit to redirect water away from vulnerable areas. Additional drainage solutions, such as channels or scuppers, can also manage water accumulation and prevent pooling.

Clogged Drains

Blocked drains are a significant issue for flat roofs, as they prevent water from flowing off the surface. Debris such as leaves, dirt, or bird nests can clog drains, leading to water buildup and increased pressure on the roof. To prevent this, regularly clear debris from your roof and drains, especially after storms and in the fall. Installing drain covers or strainers can also reduce the likelihood of clogs.

Poor Installation

Improper installation is a leading cause of flat roof problems. Poorly installed membranes, flashing, or drainage systems can lead to leaks, structural damage, and premature wear and tear. If you suspect your roof was poorly installed, consult a professional to assess the work and recommend corrections or consider repairing or replacing your flat roof using quality RoofKit Roofing products.

Thermal Movement

Flat roofs are susceptible to a wide range of temperatures, causing roofing materials to expand and contract. Over time, thermal movement of some roofing systems can lead to cracks, splits, or weakened seams. Flexible roofing materials, such as EPDM, are a great choice to minimize damage and withstand temperature fluctuations. Regular inspections can also help you identify and repair thermal damage early.

Structural Weakness

As buildings age, they naturally settle or shift, putting stress on flat roofs. Shifting can lead to sagging, cracks, or other structural issues. To address structural weakness, reinforce areas showing signs of strain with additional supports or materials. Regular inspections by a structural engineer can ensure your roof remains safe and stable.

Aging Materials

All roofing materials have a lifespan, and even the best-maintained flat roofs will eventually show signs of aging. Cracks, leaks, and general wear are common indicators that your roof materials are nearing the end of their life. If your roof is showing extensive aging or repeated problems, it may be time for a complete replacement. Choose materials that offer improved durability and resistance to modern roofing challenges.

Flat roofs are a functional and stylish choice, but regular care is required to fix common flat roof problems. Whether you’re dealing with ponding water, leaks, or aging materials, taking proactive steps now will save you time, money, and stress in the future. Don’t wait—start protecting your flat roof today with RoofKit Roofing. With our high-quality flat roof roofing material, keeping your roof in top shape can be easy!

Purchase RoofKit Roofing Products here or at Lowe’s.

It can be frustrating to see water pooling on your flat roof after every rainstorm, and it can also lead to serious damage if left unchecked. Over time, ponding water compromises the integrity of your roof and can result in costly repairs or even the need for a full replacement. Luckily, there are effective ways you can prevent and fix ponding water on your home’s flat roof.

Common Problems From Ponding Water

Flat roofs, while cost-effective and space-efficient, are prone to water pooling because they lack the natural slope of pitched roofs. When rainwater fails to drain away from your flat roof, it collects in low-lying areas, creating ponding water that leads to:

• Structural damage
• Leaks
• Algae and mold growth
• Shortened roof lifespan

These problems can be disastrous for your home if you don’t address them, but they’re easy to solve with proper planning and prevention.

Prevention Tips

Preventing water from accumulating in the first place is always easier and more cost-effective than dealing with the damage it causes after pooling up. Proactive maintenance can save you from costly repairs and stress down the line. By following these preventative measures, you can keep your flat roof in excellent condition and ensure it lasts for years.

Install Proper Drainage

A well-designed drainage system is essential for preventing ponding water. Flat roofs, despite their name, should have a slight slope to encourage water runoff. Ensure your roof has the appropriate number of drains, scuppers, or downspouts to efficiently channel water away.

Consult a roofing professional to evaluate whether your current drainage system is adequate, especially if you’ve noticed frequent pooling after rainstorms. Proper drainage isn’t just about protecting your roof—it also keeps water from seeping into your home’s foundation, which can cause structural issues over time.

Regularly Clean Gutters and Downspouts

Clogged gutters and downspouts are among the most common causes of ponding water on flat roofs. Leaves, dirt, and debris can block water flow, leading to backups and pooling. Aim to clean your gutters and downspouts at least twice a year—once in the spring to clear out winter debris and again in the fall to remove falling leaves.

If you live in an area with heavy foliage, consider cleaning them more frequently. Installing gutter guards can help reduce debris accumulation, making maintenance less frequent and more manageable.

Trim Overhanging Trees

Overhanging branches may provide shade, but they also drop leaves, twigs, and other debris onto your roof. This debris can clog your drainage system, leading to blockages and exacerbating water pooling. Regularly trim back any trees near your home to reduce the chance of debris buildup. If you’re unsure how much to cut back, consult an arborist to avoid harming the tree while keeping your roof clear.

Inspect Your Roof for Damage Regularly

Routine inspections are essential for catching potential problems before they escalate. Schedule professional roof inspections at least twice a year, ideally in the spring and fall, to ensure your roof is in good condition. Early detection and repair can save you significant money and hassle in the long run.

Check Flashing and Seals

Flashings around roof openings such as vents, skylights, and chimneys, as well as the seals along roof edges, are common weak points where water can seep in. Damaged or deteriorated flashings and seals can allow water to accumulate, leading to leaks and ponding water. Inspect these areas regularly, and replace worn-out materials promptly to keep your roof watertight.

Remove Debris From the Roof Surface

Leaves, branches, and other debris can block water from flowing freely toward drains, causing it to pool on the roof. Debris can also hold moisture, further exacerbating water-related issues and increasing the risk of roof deterioration. After storms or during the fall, make it a habit to clear your roof of debris using a broom or leaf blower. Consistent maintenance goes a long way in preventing problems.

Invest in a Quality Roofing Membrane

A durable roofing membrane is a critical component in protecting your roof from moisture, UV damage, and general wear and tear. Roofing membranes act as a robust barrier, helping to prevent water infiltration and extending the life of your roof.

When you need roofing for your flat roof, turn to RoofKit. We offer high-quality, black EPDM rubber and white reinforced membranes that are perfect for your specific roof type and climate, providing maximum protection. Investing in a reliable roofing membrane can save you from expensive repairs and replacements down the line.

Steps To Fix Ponding Water

If your flat roof is already experiencing ponding water, it’s crucial to act quickly to prevent further damage. Addressing the issue promptly can save you from costly repairs and potential water intrusion into your home.

Identify Problem Areas

After a rainstorm, if it’s safe to do so, walk around your roof to observe where the water collects. Use chalk or a washable marker to identify low spots or areas where water consistently pools. Knowing the exact problem areas will help you target your efforts more effectively.

Clear Debris From Problem Areas

Debris such as leaves, twigs, and dirt can block water flow and worsen pooling. Use a broom, leaf blower, or similar tool to clear debris from problem areas. Keeping these spots clean ensures water can flow freely toward the drainage system.

Inspect and Unclog Your Drainage System

A blocked drainage system is often the main culprit behind ponding water. Check all gutters, downspouts, and roof drains for blockages. Use tools such as a plumber’s snake or a pressure washer to clear stubborn clogs and ensure proper water flow. Regular maintenance of your drainage system is essential to prevent future issues.

Level Out Low Spots

If your roof has visible dips or low areas, you can fill them with self-leveling compounds or roof-leveling products. These materials even out small depressions, improving drainage and minimizing water pooling. For extensive leveling needs, consult a roofing contractor for professional solutions.

Install Additional Drains

Persistent ponding issues may require additional drainage solutions. Installing extra drains, scuppers, or even a secondary drainage system can help tackle problem areas. A roofing professional can help design and install these additions to maximize efficiency.

Repair Any Roof Damage

Inspect your roof for cracks, punctures, or other damage that may be contributing to water pooling. Promptly patch these areas using appropriate roofing materials to prevent leaks and further deterioration.

You can prevent and fix ponding water on your home’s flat roof through regular maintenance, proper drainage, and timely repairs. A well-maintained roof will safeguard your home and give you peace of mind.

Purchase RoofKit Roofing Products here or at Lowe’s.