There are many revolving pieces of a roof installation, and most homeowners overlook some important aspects. There are many common roofing mistakes that can occur during installation and lead to early roof failure and expensive repairs.

At BRH Enterprises, LLC, we understand these installation errors can significantly impact your home’s structural integrity and long-term protection. That’s why, in this blog post, we will discuss common roofing mistakes that every homeowner should know about.

If you are looking for trustworthy and faultless roofing services in Mayville and the surrounding areas of Wisconsin, then we are here to assist you. Call us today at (920) 249-4228 to learn more.

#1 Reusing Old Flashing

Let’s start with the very common roofing mistake that homeowners often overlook. Flashing is an important water-redirection material generally made of aluminum. It is important to ensure that roofers don’t reuse the existing flashing during roof replacement.

While it might appear intact, flashing that’s being reused compromises your roof’s water protection. New flashing is important to ensure proper water redirection, prevent potential leaks, and protect vulnerable areas like vents, chimneys, and skylights.

Always replace flashing during roof installations to maintain good water resistance and prevent potential structural damage.

#2 Improper Flashing Securement

Proper flashing installation is another important thing to check for to make sure that you have a safe, quality roof installation. Misaligned or incorrectly fastened flashing creates the risk of leaks in your roofing system.

Flashing needs to be properly overlapped, and if it’s not, it allows for water penetration, potentially causing significant damage from ice, rain, or snow. Professional roofers always ensure precise alignment, correct overlap, and secure fastening.

#3 Skipping Underlayment

Applying new roofing material directly to the wooden roof deck is a big roofing mistake. Underlayment provides a water-resistant barrier that is important for your roof’s protection.

This layer prevents moisture penetration, helps maintain your roof’s durability, and creates a stable foundation for other roofing materials to rest on.

Professional roofers won’t even make this mistake. Check and confirm if your roofer is professionally installing the underlayment on your roof or not.

#4 Layering New Shingles Over Old Ones

On the list of what can go wrong during a roof replacement, improperly layering new shingles over old ones is one you wouldn’t commonly think of. However, this practice can mask underlying structural issues and add unnecessary weight to your roof.

In some jurisdictions, it is illegal to install new asphalt roofing over existing layers. Covering old shingles prevents proper inspection of the roof deck’s integrity and can compromise your roof’s structural stability. Professional roofers recommend complete removal before installing new roofing materials.

#5 Incorrect Shingle Nail Placement

Incorrect shingle overhang often results from improper nail placement. Nails should be strategically positioned underneath shingle layers to prevent corrosion and potential structural weaknesses. Exposed nails deteriorate quickly, creating entry points for water and wind damage.

Precise nail positioning ensures secure shingle attachment, maintains roof strength, and prevents premature wear. Professional roofers properly select appropriate nail locations to increase your roof’s longevity.

#6 Neglecting Roof Permits

Another roofing mistake, and one that can cause legal trouble, is skipping necessary permits.

Local municipalities require specific documentation for roof installations. Failing to obtain proper permits can result in significant fines, potential roof removal, and insurance complications.

Licensed roofing specialists understand local regulations and ensure complete compliance, protecting homeowners from regulatory challenges.

Also Read: Do You Need a Permit To Replace a Roof In Wisconsin?

#7 Poor Attic Ventilation

Many roofing problems frequently stem from inadequate attic ventilation. Insufficient airflow causes excessive heat buildup, damaging roofing materials and insulation. Poor ventilation also accelerates shingle deterioration, increases energy costs, and compromises your home’s thermal efficiency.

Proper ventilation regulates temperature, prevents moisture accumulation, and ensures a solid foundation for roofing materials. Homeowners should not forget about proper attic ventilation when installing or replacing a roof.

#8 Incorrect Shingle Nail Length

Each type of shingle requires a specific nail length for proper installation. Using incorrectly sized nails increases the risk of a shingle becoming loose and shifting on the roof’s surface, ultimately reducing the roof’s lifespan. Nails must penetrate deeply into the roof decking to securely hold shingles in place.

Insufficient nail length compromises a shingle’s durability, making them susceptible to wind damage and potential detachment. Professional roofers will carefully select nail lengths matching specific shingle styles.

#9 Roof Slope Considerations

Different roof slopes require specific roofing materials and installation techniques. When contractors use a one-size-fits-all approach to roof installation, this is a big mistake that is sending future costly repairs your way.

Lower slopes may require roll roofing with exposed nails, while higher pitches demand specific shingles or tiles. Incorrect material selection based on roof slope can leave your roof vulnerable to water penetration and structural damage. Professional assessment of roof pitch is crucial in order to select the appropriate roofing solutions.

Also Read: Understanding the minimum slope for shingle roofs!

#10 Not Following Manufacturer’s Guidelines

Roofing materials come with specific manufacturer instructions that are very important for proper installation. Ignoring these guidelines can void warranties on materials and lead to improper installation.

Roofing materials typically have unique requirements for handling, placement, and securement set by the manufacturer. Professional roofers carefully review and follow these instructions to ensure maximum performance and longevity. Overlooking these guidelines can result in premature roof failure, potential water damage, and loss of manufacturer support.

#11 Forgetting A Drip Edge

The drip edge is an aluminum strip installed along the edge of your roof that redirects water away from walls and into gutters. Without this protective barrier, water can seep under shingles, causing potential wood rot, foundation damage, and structural deterioration.

Installing a drip edge is an inexpensive yet important step in maintaining your home’s long-term integrity and preventing costly water-related repairs.

#12 Sagging Rain Gutters

Gutters need proper support to handle water weight effectively. Incorrect screw placement can cause sagging, and narrow gutters (like 4-inch ones) struggle in heavy rainstorms.

When gutters can’t manage water volume, they become overloaded, leading to drooping and potential drainage problems, compromising the home’s exterior protection.

You might also like: How To Keep Your Gutters From Freezing In The Winters?

#13 Improper Shingle Overhang and Exposure

Roofing problems arise from incorrect shingle overhang, where precise measurements are crucial.

An overhang between 7-10mm prevents wind damage and water penetration. If exceeded by 11mm, wind can easily get under shingles and lift them, compromising the roof, while under 6mm invites leaks.

Proper shingle exposure is equally important for balancing moisture control and structural integrity to prevent blow-offs and water damage.

How Do You Avoid These Common Roofing Mistakes?

It is best to hire professional roofers to avoid these mistakes during roof installation. When selecting a roofer, consider these key factors:

👉 Verify Licensing: Make sure that the roofing company that you hire has proper state and local licenses.

👉 Check Insurance: Confirm they carry comprehensive liability and worker’s compensation insurance for installation errors.

👉 Request References: Ask your roofing company for their most recent project references

👉 Detailed Written Estimate: Get a comprehensive, written estimate detailing all work.

👉 Manufacturer Certifications: Choose a roofing company that is certified by some major roofing material manufacturers.

A professional roofer understands local building codes, can navigate permit requirements, and knows how to address unique roofing challenges specific to your home’s design and local climate.

Get Professional Roofing Services In Wisconsin

If you are looking for high-quality and professional roof replacement in Mayville, and the surrounding areas of Wisconsin, then we are here to assist you. Not only do we offer roof replacements, we provide a comprehensive range of roofing services to the homeowners all across the state.

At BRH Enterprises, LLC, we have a team of dedicated roofing professionals who have the right knowledge and experience to work on various types of roofs. Trust us as your reliable roofers and we will make sure that you get a faultless and strong roof installation.
To get a free roof quote, or to know more, you can call us today at (920) 249-4228.

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