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4 Common Gutter Slope Mistakes and How to Avoid Them

Posted on February 12, 2024

Estimated Reading Time : 5 Min.

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gutter slope

Gutter slope might seem like a small detail of your drainage system, but it plays a crucial role in ensuring proper drainage and preventing water damage to your home. Unfortunately, many homeowners overlook this aspect or make mistakes when installing or maintaining their gutters. In this blog post, we’ll explore four common gutter slope mistakes and provide you with valuable tips on how to avoid them.

Common Gutter Slope Mistakes to Avoid

To keep your home safe from water damage, avoid these errors when installing your gutters. 

1. Ignoring Proper Slope

Rain gutter slope plays a critical role in the proper drainage of water. If you have installed a gutter with insufficient slope or ignored it completely, you might experience some trouble with water drainage and even gutter sagging. Though not very visible from the ground, gutters are installed slightly sloping toward the downspouts for effective and smooth drainage. However, without the proper slope, water can accumulate in the gutters, leading to overflow and potential damage to your home’s foundation. 

2. Incorrect Downspout Placement

Downspouts play a crucial role in proper water drainage. Downspouts are the long tubes installed on the base of the gutters, usually near the corner of a building. They channel the water coming from the gutters away from the home, but they do so only when installed effectively. The misplacement of downspouts can result in overflowing gutters or even sagging. Gutters are often sloped towards the downspout to ensure a steady flow of water, but if the slope is insufficient it can lead to standing water in the gutters. 

Therefore, it is essential to install them at the lowest part of the gutter system. Placing downspouts too far apart can overload the gutters during heavy rainfall, while placing them too close may not allow for adequate drainage. Hence, creating the right balance is crucial for protecting your property from damage.

3. Incorrect Hanger Spacing

Even when you install gutters with the right slope, if you have placed hangers unevenly, they can cause the gutter to sag. This decreases both your gutter’s functionality and the aesthetic appeal of your home. Hangers spaced too far apart disrupt the slope and cause water to pool in the gutter. Therefore, when installing gutters, ensure to space the hangers according to manufacturer recommendations. 

4. Using the Wrong Materials

Before installing a gutter system, it is necessary to analyze your roof shape and the specific needs of your home. If they do not meet the requirements of your roof, the gutters may show signs of damage soon after installation. For example, high-pitched roofs require stronger gutter materials than low-slope or flat roofs. 

Moreover, gutters come in different types and styles, including copper, aluminum, and vinyl. Copper and aluminum may easily handle the water running down high-pitched roofs, while vinyl may be more susceptible to cracking, bending, and sagging. 

In addition, gutter slope plays a key role in the overall functionality regardless of the material and quality of your gutters. Copper gutters, if installed with an insufficient slope, may not be effective at draining water away from the home. Therefore, we recommend a professional roof assessment to ensure you choose high-quality materials for your gutters. 

How To Avoid Gutter Slope Mistakes

Gutter slope

To prevent the issues mentioned above, follow these tips: 

1. Measure and Calculate the Correct Pitch Angle

One of the most common mistakes homeowners make is installing gutters with an incorrect slope. To avoid this, measure the length of your gutter and calculate the ideal pitch angle. The required gutter slope per foot generally lies between 1/8 to ¼-inch. Use a level and a chalk line to ensure accuracy during the gutter installation.

2. Strategically Place Downspouts

As you know, downspouts play an important role in channeling the water away from your property. However, they require strategic placement for proper functioning. 

a. Assess the Length of Your Gutters: Before determining the placement of downspouts, assess the length of your gutter system. Consider factors such as the size of your roof, the amount of rainfall in your area, and the slope of your landscape.

b. Divide the Gutter into Sections: Divide your gutter system into manageable sections, with each part having its own downspout. This helps distribute water flow evenly and prevents any one section from becoming overwhelmed during heavy rainfall.

3. Properly Space Gutter Hangers

To prevent gutters from sagging and cracking, you must space the gutter hangers evenly to provide reliable support. 

a. Refer to Manufacturer Recommendations: Manufacturers often provide guidelines for the recommended spacing between hangers depending on the material and size of your chosen gutter. If you want to install gutters yourself, check the manufacturer’s guidelines for the specific type of gutter hangers you are using. 

b. Mark the Placement of the Hangers: By using a pencil or chalk, mark the placement of each gutter hanger along the length of the gutter. Start at one end and mark the locations for each hanger. 

c. Securely Install the Hangers: Now that you have marked the placement of hangers, securely attach each gutter hanger to the fascia board using screws or nails. Use the proper technique and make sure the hangers are installed at the marked locations. 

4. Invest in High-Quality Materials

As mentioned above, using inferior or unsuitable gutter materials can compromise their ability to maintain the proper slope. However, investing in high-quality gutters that are specifically tailored for your roof will likely withstand the elements better and provide long-lasting performance. Quality materials will ensure that your gutters remain structurally sound and maintain their slope over time.

5. Hire a Professional Contractor

If you’re unsure about installing or maintaining your gutters, don’t hesitate to seek professional help. Hiring a professional contractor with experience in gutter installation and maintenance can help you avoid costly mistakes and ensure that your gutters are properly sloped for optimal drainage.


Installing gutters requires skills and expertise. If you are unsure how to properly install gutters, then it is best to leave this job to the professionals. Professional gutter installers bring with them the required tools and expertise. Moreover, they assess your roof’s condition, its pitch, and the requirements of your building before actually deciding the type and size gutters you need. 

By following tips and tricks, first-time DIYers can try installing gutters; however, professional installers often include a guarantee of their workmanship. Additionally, measuring the gutters to the right size is a specific skill best left to the professionals. So, by hiring professionals, you can ensure your gutters are correctly installed and are the right slope for your roof. 

Contact Professional Gutter Installers In Tulsa, OK

If you think your gutters have insufficient slope, then don’t wait to fix the issue. Improper gutter slope, as you know, can invite potential problems down the road. To avoid damage to your roof and home, you should never overlook any issues associated with your gutters. 
Contact the professional roofers at A. Fricker Roofing and Waterproofing in Tulsa, OK for our gutter services. The skilled gutter installers at the company bring with them excellence and years of experience that you can trust. Contact us today at (918) 402-7167 and consult a professional for your gutter repair in Tulsa, OK.  

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