How to Install Architectural Shingles (7 Step Roofing Guide)

Upgrading your roof is one of the smartest home improvement investments you can make—and learning how to install architectural shingles properly can mean the difference between long-term protection and expensive repairs. These durable shingles offer serious curb appeal and long-lasting performance, especially when installed with precision. Homeowners in Cornelius and surrounding areas often choose architectural shingles for their resilience and aesthetic edge. If you’re considering a roof upgrade, this guide will walk you through the essentials and help you understand what to expect.

For those exploring better protection for their home, understanding this process is the first step—especially when looking into options like those highlighted on this page of our site.

• Learn why architectural shingles outperform standard shingles
• Discover the 7 key steps in the installation process
• Get expert insights to avoid common mistakes
• Explore tools, materials, and timing recommendations

Why Choose Architectural Shingles?

Architectural shingles, also known as dimensional or laminated shingles, are a favorite among homeowners for their strength, longevity, and enhanced appearance. Their layered design not only looks great but also offers added performance in a range of weather conditions.

• Superior Durability: These shingles are heavier and thicker, standing up better to wind, hail, and extreme temperatures.
• Dimensional Curb Appeal: With a textured design that mimics slate or wood shake, they offer more depth and character than flat 3-tab shingles.
• Increased Home Value: The visual appeal and long lifespan of architectural shingles can boost your home’s resale potential.
• Extended Warranty Protection: Many brands offer warranties of 30 years or more when installed correctly.
• Better Weather Resistance: Ideal for Cornelius and surrounding areas, where heat, humidity, and seasonal storms can test a roof’s strength.

By choosing architectural shingles, you’re not just upgrading your roof—you’re investing in long-term home protection.

7 Steps to Install Architectural Shingles the Right Way

Roofing installation is a detailed process that affects both performance and warranty coverage. These seven steps will give you a complete picture of what’s involved.

1. Tear Off the Old Roof

Before installing new shingles, the existing roofing material must be removed down to the decking.

• Use a roofing shovel or pitchfork to pry up shingles and nails
• Roll roofing felt and underlayment should also be removed
• Inspect for damaged or rotting decking, and repair as needed

Skipping this step may compromise the integrity of the new roof and void manufacturer warranties.

2. Install Drip Edge and Ice/Water Barrier

The drip edge and ice/water shield are your roof’s first line of defense.

• Install drip edge along eaves and rake edges to direct water away from fascia and into gutters
• Lay ice and water shield in valleys and along the eaves to protect against water infiltration
• In regions like Cornelius and surrounding areas, this step is vital to prevent damage from heavy rains and humidity

Proper sealing at edges and valleys prevents long-term issues like wood rot and mold buildup.

3. Lay Down Synthetic Underlayment

Underlayment acts as a moisture barrier between the shingles and the wood decking.

• Use high-quality synthetic underlayment for added strength and weather resistance
• Overlap each course by at least 4 inches, working from the bottom up
• Fasten with cap nails to ensure it stays put during wind or installation

Underlayment is crucial in areas with variable weather patterns, offering secondary protection even before the shingles go on.

4. Snap Chalk Lines for Shingle Layout

Chalk lines help ensure a straight, professional appearance and proper water shedding.

• Snap a starter line along the eave, then create horizontal lines every 5-5/8″ to guide each course
• Mark vertical lines to help stagger shingle joints every other row
• Verify alignment often—especially when working around vents, dormers, or valleys

Even small misalignments can become very noticeable from the ground once the roof is complete.

5. Install Starter Strip Shingles

Starter strips seal the first course of shingles and protect against wind uplift.

• Place the starter strip along the edge of the roof, flush with the drip edge
• Make sure the adhesive strip faces the eave edge
• Nail according to manufacturer specifications—usually 3 to 4 nails per strip

Using leftover shingles as a starter course is a common DIY mistake that reduces wind protection.

6. Apply the Architectural Shingles

This is where the bulk of the visual transformation happens.

• Start with a full shingle above the starter strip at one end of the roof
• Stagger joints for a natural, sawtooth pattern
• Nail each shingle with 4–6 nails, depending on wind zone and product specs
• Work up the roof in rows, constantly checking alignment with chalk lines

Tip: Cut shingles with a hook blade utility knife for cleaner cuts and less wear on materials.

7. Install Ridge Caps and Final Flashing

The last step finishes the roof and seals it at the peak.

• Use specially designed ridge cap shingles or cut them from architectural shingles
• Overlap each piece and nail on either side of the ridge
• Apply sealant at nail heads and over exposed flashing for added protection

Once complete, do a full inspection for uniformity, sealed edges, and consistent nailing.

Must-Have Tools and Materials

Before starting your project or evaluating your roofer’s bid, it’s helpful to understand what’s needed.

• Roofing Nailer: Speeds up installation and ensures proper nailing depth
• Utility Knife with Hook Blades: Makes clean cuts without tearing the shingles
• Roof Jacks and Safety Harness: Keeps workers safe, especially on steeper slopes
• Chalk Line and Measuring Tape: Ensures straight courses and spacing
• Cap Nails and Galvanized Roofing Nails: For underlayment and shingles, respectively
• Underlayment, Flashing, Sealant: Vital components for sealing and water protection

Homeowners in Cornelius and surrounding areas should also consider attic ventilation options like ridge vents or gable vents to manage temperature and humidity year-round.

Architectural Shingles vs 3-Tab: Know the Difference

While 3-tab shingles are less expensive, architectural shingles offer greater value over time. Here’s how they compare:

Feature	Architectural Shingles	3-Tab Shingles
Lifespan	25–30+ years	15–20 years
Warranty	Often 30–50 years	20–25 years
Appearance	Textured, dimensional	Flat and uniform
Wind Resistance	Up to 130 mph	Up to 60 mph
Cost	Moderate to high	Lower upfront cost
Resale Value	Higher	Lower

In climates like Cornelius, where storms can bring high winds and heavy rain, the performance difference alone can make architectural shingles the more cost-effective choice over time.

Should You DIY or Hire a Roofing Pro?

While some homeowners are handy enough to tackle home upgrades, roofing isn’t always a DIY-friendly project.

Consider DIY Only If:

• You have experience with roofing or construction work
• Your roof is low-pitched and easy to access
• You’re prepared with all safety gear and tools

Hire a Pro If:

• Your roof is steep, multi-leveled, or has complex features
• You want to preserve your manufacturer warranty
• You value time, safety, and long-term workmanship

Hiring a certified roofing contractor in Cornelius and surrounding areas ensures you meet local code requirements, pass inspections, and get the job done safely and efficiently.

Best Time of Year to Install Shingles in Cornelius

Timing can impact both the quality and convenience of a roofing project.

• Spring: Ideal temperatures and lower humidity make it a top choice
• Fall: Another popular time, especially to prepare before winter
• Avoid Summer Heat: Excess heat can make shingles difficult to handle
• Avoid Winter Cold: Cold temperatures can cause cracking or poor adhesion

Scheduling your project during spring or fall in Cornelius and surrounding areas also means you’ll beat the summer rush and avoid material shortages.

Ready for a Roof That Lasts?

Architectural shingles are a smart investment—but only when installed with precision and care. Every step, from removing the old shingles to sealing the final ridge cap, plays a vital role in protecting your home. As you’ve seen in this guide, installing them isn’t just a weekend project—it’s a process that requires skill, experience, and the right tools.

If you live in Cornelius or surrounding areas and want a new roof that delivers long-term performance and peace of mind, trust the experts who do it right the first time. To get started with your roofing upgrade, contact us today and see why so many homeowners trust Great State Roofing for quality, care, and craftsmanship that lasts.