6 Common Asphalt Shingle Installation Mistakes and How to Avoid Them

Asphalt shingles are a favored choice for roofing due to their cost-effectiveness and durability. However, the longevity and performance of asphalt shingle roofs largely depend on the quality of installation. Mistakes made during the installation process can lead to premature roof failure and costly repairs. Understanding these common errors can greatly aid homeowners and contractors in ensuring a successful installation. 

Read on as we explore the most frequent asphalt shingle installation mistakes and offer professional advice on how to avoid them. By paying close attention to these detailed recommendations, you can help secure the longevity and effectiveness of your roof, protecting your home against the elements in an efficient and aesthetically pleasing manner.

Improper Nail Placement

One of the most common errors in asphalt shingle installation is improper nail placement. Shingles need to be securely fastened to resist high winds and severe weather conditions. Incorrect nailing can lead to shingles becoming loose or blowing off during a storm. It’s critical that nails are placed below the tar line and not too high on the shingle. There should always be a minimum of four nails per shingle and six in high-wind areas. Our technicians ensure nails are driven straight and flush with the shingle, not angled or driven too deeply, which can also compromise the roof’s integrity.

Inadequate Shingle Overhang

The right amount of overhang is crucial for preventing water from seeping under the shingles at the roof’s edge. Too little overhang can cause water damage to the roof deck and fascia, while too much overhang might lead to the shingles blowing off in windy conditions. The ideal overhang for asphalt shingles at the eaves should be between 1/4 inch to 3/4 inch unless drip edge flashing is used, in which case the shingle should come to the middle of the flashing. We always carefully measure and adjust the shingle overhang to optimize weather protection and ensure a clean appearance.

Poor Shingle Alignment

Alignment errors can occur if the first row of shingles is not laid down perfectly straight, as this serves as the guide for the rest of the rows. Misaligned shingles can compromise both the effectiveness and the aesthetic appearance of your roof. They can also lead to uneven wear and tear over time. To prevent this, our professionals always use a chalk line to mark the placement of the first row accurately according to the roof’s structure. This ensures each subsequent row follows suit, maintaining a neat and uniform appearance while supporting optimal functionality.

Neglected Attic Ventilation

Adequate attic ventilation is vital in maintaining the roof’s lifespan. Poor ventilation can lead to a buildup of heat and moisture in the attic, which can subsequently cause the shingles to deteriorate prematurely and increase the risk of ice dams forming at the roof’s edge in colder climates. It’s important during the installation to check for proper attic ventilation and enhance it if necessary. Our team assesses the attic’s existing venting systems and adjusts them to achieve the appropriate airflow, which helps regulate temperature and moisture levels within the attic space.

Overlooking Underlayment

Installation of an underlayment is a critical step that should not be overlooked. This water-resistant or waterproof barrier material is installed directly onto your roof deck before any shingles are added. It serves as an additional layer of protection from water intrusion, which can cause significant damage. Failure to properly install underlayment, or skipping it entirely, can greatly increase the risk of leaks. We use high-quality underlayment materials and ensure that they are rolled out smoothly and securely fastened, covering the entire roof deck and effectively sealing joint areas.

Ignoring Manufacturer’s Installation Guidelines

Each manufacturer may have specific instructions regarding the installation of their asphalt shingles. Ignoring these guidelines can not only lead to poor installation but may also void any warranties that come with the roofing materials. Common stipulations include specific nailing techniques, shingle alignment methods, and the use of particular underlayment types. Our professionals always adhere to the manufacturer’s guidelines for each product, ensuring that the installation is done correctly and maintaining the warranty’s validity.

Secure Your Roof with Professional Installation

Ensuring a professional and meticulous installation of your asphalt shingle roof is pivotal to safeguarding the integrity and longevity of your home. By steering clear of common installation errors such as poor nail placement, inadequate shingle overhang, misalignment, and overlooking crucial components like underlayment and attic ventilation, you substantially enhance your roof’s durability and performance. At Preferred Home Services, our team of skilled professionals is dedicated to delivering exceptional residential roofing services in Friendswood, TX, that adhere to the highest standards of quality and precision. We ensure every aspect of the installation process is executed flawlessly, keeping your home protected and beautiful for years to come.

Ready to install a new roof or need an expert assessment of your current one? Trust us to provide top-tier roofing solutions. Contact us today to schedule a consultation and ensure your roof is in expert hands!