Why Your Asphalt Roof Matters More Than You Think
An asphalt roof replacement is one of the most significant investments you’ll make as a homeowner. Your roof is your home’s first line of defense against Delaware’s weather, and choosing the right team for the job is crucial. Work with a trusted Delaware roofing contractor to get code-compliant installation, verified warranties, and clear cost expectations. As local experts, First State Roofing & Exteriors has guided hundreds of homeowners through this process, ensuring their homes are protected for decades. This guide walks you through every step, from recognizing warning signs to understanding the final installation.
Quick Answer: What You Need to Know About Asphalt Roof Replacement
- Typical Lifespan: 20 years for 3-tab shingles, 30+ years for architectural shingles.
- Average Cost: $6-$12 per square foot.
- When to Replace: When shingles are curling, cracking, missing granules, or the roof is over 20 years old.
- Key Decision: Full tear-off (recommended) vs. overlay.
- Common Signs: Curling shingles, granules in gutters, dark streaks from algae, attic water stains, or a roof approaching its age limit.
Most homeowners in Delaware can expect their roof replacement project to take 1-3 days. With proper planning and a qualified contractor, the process doesn’t have to be overwhelming.
“I’ve seen how the right preparation and knowledge lead to roofs that protect homes for decades. My goal is to share that expertise with you.” — Richard McCain, Owner, First State Roofing & Exteriors

If your roof is showing signs of wear, we offer free estimates. Call us at (302) 222-4065 to schedule a free inspection and get expert guidance custom to your home’s needs.
Pre-Replacement Prep: When to Replace and What to Choose
Deciding to replace your roof is a big step, but knowing what to look for makes it manageable. Your roof provides constant protection, but even the best shingles eventually wear out. Here’s how to spot the signs and choose the right materials for your Delaware home.
Signs It’s Time for an Asphalt Roof Replacement
Your roof communicates wear and tear through visible signs. An asphalt roof replacement becomes necessary when these red flags appear, indicating your home’s protection is compromised.
- Age: The simplest indicator. According to InterNACHI’s Standard Estimated Life Expectancy Chart for Homes, 3-tab shingles last about 20 years, while architectural shingles last 30 or more. If your roof is nearing this age, it’s time to plan for a replacement.
- Shingle Damage: Look for shingles that are curling at the edges, cupping in the middle, or visibly cracked. This indicates the asphalt is drying out and becoming brittle, making it vulnerable to wind and water.
- Missing Granules: The granular coating on shingles protects them from UV rays. If you see bald spots or find granules (which look like coarse sand) in your gutters, your roof’s primary defense is failing.
- Algae and Moss: Dark streaks from algae (Gloeocapsa magma) are common in Delaware’s humidity and can accelerate granule loss. Moss is more damaging, as it traps moisture against the shingles, causing them to lift and deteriorate.
- Leaks and Storm Damage: Water stains in your attic are an urgent sign that water is getting in. After a severe storm, it’s wise to get a professional inspection. High winds can lift or remove shingles, while hail can cause cracks and divots that compromise the roof’s integrity. We specialize in assessing storm damage and can help identify issues you can’t see from the ground.

Choosing Your Asphalt Shingles: 3-Tab vs. Architectural
Once you decide to replace your roof, you’ll choose between 3-tab and architectural shingles.
3-tab shingles are the traditional, single-layer option. They are affordable and create a flat, uniform look. However, they have a shorter lifespan (around 20 years) and lower wind resistance (60-70 mph).
Architectural shingles (or dimensional shingles) are a modern, multi-layered upgrade. They offer a textured look mimicking wood or slate, last 30+ years, and provide superior wind resistance (110-130 mph or higher). While they cost more upfront, their durability and curb appeal make them a better long-term value for most Delaware homeowners.
| Feature | 3-Tab Shingles | Architectural Shingles |
|---|---|---|
| Lifespan | 20 years (typical) | 30 years or more (typical) |
| Cost | Lower upfront cost | Higher upfront cost |
| Wind Resistance | Up to 60-70 mph | Up to 110-130 mph+ |
| Aesthetics | Flat, uniform look | Dimensional, textured look |
| Durability | Good | Excellent, multi-layered protection |
Key Shingle Features, Warranties, and Ratings
Modern shingles are engineered systems. Here are key features to consider:
- Algae Resistance: Many shingles now include copper granules to prevent the growth of blue-green algae, keeping your roof looking clean in Delaware’s humid climate.
- High Wind Resistance: Look for shingles with advanced adhesive technologies and reinforced nailing zones, which are critical for coastal homes.
- Fire Rating: Most architectural shingles have a Class A fire rating, the highest available, offering superior protection against external fire spread.
- Warranties: Manufacturer warranties cover defects, but they can be voided by improper installation. A contractor’s workmanship warranty is just as important, as it covers the installation itself.
- Energy Efficiency: “Cool roof” shingles reflect more sunlight, which can lower attic temperatures and reduce A/C costs. Look for products with high ratings from the Cool Roof Rating Council or Energy Star.
Choosing the right shingles involves balancing cost, performance, and aesthetics. We offer free estimates to help you navigate the options. Call us at (302) 222-4065 to schedule a free inspection.
Understanding the Cost of an Asphalt Roof Replacement
One of the first questions homeowners ask is, “How much will this cost?” The price of an asphalt roof replacement varies based on several key factors. Understanding these elements helps you budget effectively and interpret estimates accurately.
Key Factors That Influence Your Final Price
When we create an estimate, we consider the unique characteristics of your roof.

- Roof Size and Complexity: Larger roofs require more materials and labor. Complex designs with multiple valleys, dormers, skylights, or chimneys also increase costs due to the intricate cuts and flashing required.
- Roof Pitch: Steeper roofs require additional safety equipment and more time to install, which increases labor costs.
- Material Choice: Architectural shingles cost more than 3-tab shingles. Premium features like improved wind or algae resistance also affect the price.
- Labor Costs: Typically 25-35% of the total project, labor costs reflect the skill and experience of the installation crew. Quality workmanship is essential for a long-lasting roof.
- Tear-Off vs. Overlay: We almost always recommend a complete tear-off. While an overlay (installing new shingles over old ones) is cheaper, a tear-off allows us to inspect and repair the roof deck, ensuring a solid foundation for your new roof.
- Permits and Deck Repairs: Most municipalities require permits. Additionally, if we find rotted or damaged decking during the tear-off, it must be replaced, which adds to the final cost.
Average Costs and Financial Assistance
The average cost for an asphalt roof replacement in Delaware typically ranges from $6 to $12 per square foot. For a standard bungalow, this often translates to a starting price of around $7,000, while larger or more complex homes can cost $15,000 or more. Asphalt remains the most popular choice due to its excellent balance of cost, durability, and aesthetics.
While asphalt has a lower upfront cost than materials like metal ($13-$28/sq. ft.) or slate ($30-$42/sq. ft.), it provides outstanding value and performance when installed correctly.
Several options may help with financing your project:
- Homeowner’s Insurance: If the replacement is due to storm damage, your policy may cover a significant portion of the cost.
- Energy Efficiency Credits: Choosing Energy Star rated “cool roof” shingles may qualify you for tax credits or rebates.
- Local Programs: Check with your municipality for any home improvement grants or low-interest loans, particularly for low-income homeowners or energy-efficient upgrades.
For a precise estimate custom to your home, check our Roof Replacement Cost Guide 2025. Ready to get started? Request a Free Roof Estimate or call us at (302) 222-4065 to schedule a free inspection.
The Professional Installation Process: A Step-by-Step Guide
A professional asphalt roof replacement is a meticulous process that ensures your home is protected for decades. Here is a step-by-step overview of how our expert team handles the installation.
Step 1: Preparation and Tear-Off
The first phase is focused on protecting your property and preparing the roof deck.
- Site Protection: We cover landscaping, driveways, and siding with tarps to protect them from debris. A dumpster is placed strategically for efficient waste removal.
- Tear-Off: Our crew removes all old shingles, underlayment, and nails down to the bare roof deck.
- Deck Inspection: With the deck exposed, we conduct a thorough inspection for rot, water damage, or structural weakness. Any compromised sections of plywood or OSB are replaced to create a solid foundation for the new roof. This critical step is why a full tear-off is superior to an overlay.
For more details, see our Roof Installation Complete Guide.
Step 2: Building the Roofing System
A modern roof is a complete system of integrated components designed to manage water.

- Waterproofing Barriers: We install a metal drip edge along all roof edges to direct water into the gutters. A self-adhering ice and water shield is applied to the eaves, valleys, and around penetrations to protect against ice dams and wind-driven rain.
- Underlayment: A layer of synthetic underlayment is installed over the entire roof deck, acting as a secondary barrier against moisture.
- Flashing: We install new, custom-fit metal flashing around chimneys, vents, skylights, and where the roof meets a wall. This is crucial for preventing leaks in the most vulnerable areas.
Step 3: Shingle Installation and Finishing Touches
With the foundation in place, we install the shingles that provide the final layer of protection and curb appeal.
- Starter Shingles: A special row of starter shingles is installed at the eaves to secure the first course and improve wind resistance.
- Field Shingles: We lay the main shingles, following the manufacturer’s precise nailing patterns to ensure warranty compliance and maximum wind resistance. We use chalk lines to ensure courses are straight and uniform.
- Hip and Ridge Caps: Thicker, specialized shingles are used to cover the hips and ridges of the roof, providing durable protection for these high-stress areas.
- Cleanup and Final Inspection: Our job isn’t done until your property is spotless. We remove all debris and use a magnetic sweeper to collect stray nails. A final walkthrough ensures every detail meets our high standards. You can find more expert advice in our Roofing Tips section.
Hiring the Right Professional for the Job
The quality of your asphalt roof replacement depends entirely on the contractor you choose. A trustworthy professional ensures your roof lasts for decades, while a poor choice can lead to frustration and costly repairs. Here’s how to find the right partner for your project.
How to Find and Vet a Qualified Roofing Contractor
Start by asking for referrals from friends, family, and neighbors. Once you have a few names, do your homework. A qualified contractor should always:
- Be Licensed and Insured: Verify they hold a proper Delaware license and carry both liability insurance and workers’ compensation. This protects you from liability for accidents.
- Have Proven Experience: Look for a company with years of local experience and manufacturer certifications (e.g., GAF Master Elite), which indicate advanced training.
- Provide Positive Reviews: Check Google, Yelp, and the Better Business Bureau for consistent customer satisfaction.
- Offer Written Estimates: Get at least three detailed estimates to compare scope and pricing. Be wary of unusually low bids, as they often signal cut corners.
Red Flags to Watch For: Avoid contractors who demand full payment upfront, use high-pressure sales tactics, or cannot provide proof of licensing and insurance. For more tips, check our Hiring a Roofer Guide. If you’re in the Dover area, learn more about our local expertise on our Roofers Dover Delaware page.

What to Look for in a Roofing Contract
A detailed contract is your most important protection. Never proceed without a written agreement. It should clearly define:
- Scope of Work: A full description of the project, including tear-off, deck inspection, and cleanup procedures.
- Material Specifications: The exact brand, product, and color of all materials being used.
- Payment Schedule: A reasonable schedule, such as a deposit, a payment upon material delivery, and the final balance upon completion. Never pay in full upfront.
- Project Timeline: Estimated start and completion dates.
- Warranty Details: Clear information on both the manufacturer’s material warranty and the contractor’s workmanship warranty.
- Lien Waivers: A provision that protects you from liens filed by unpaid suppliers or subcontractors.
At First State Roofing & Exteriors, we review every contract line by line with our clients. We offer free estimates and are committed to a transparent, professional experience. Call us at (302) 222-4065 to schedule your free inspection.
Frequently Asked Questions about Asphalt Roof Replacement
Homeowners often have questions when considering an asphalt roof replacement. Here are direct answers to some of the most common inquiries.
How long does an asphalt shingle roof last?
The lifespan of an asphalt roof depends on the shingle type and local climate. Standard 3-tab shingles typically last around 20 years. Higher-quality architectural shingles are designed to last 30 years or more. Proper installation and attic ventilation are key to maximizing any roof’s lifespan, especially with Delaware’s weather.
Can I install a new roof over my old one?
While some building codes permit installing one new layer of shingles over an existing one (an “overlay”), a complete tear-off is the professionally recommended method. An overlay can hide serious issues like rotted decking and may not provide a flat surface for the new shingles, potentially reducing their lifespan and voiding warranties. A tear-off allows for a full inspection and repair of the roof deck, ensuring a solid foundation for your investment.
How does weather impact an asphalt roof?
Weather is the primary factor in a roof’s aging process. In Delaware, key impacts include:
- UV Radiation: Sunlight dries out the asphalt in shingles, making them brittle.
- High Winds: Strong winds can lift, curl, or blow off shingles, leaving your home exposed. As The National Severe Storms Laboratory explains, winds over 50-60 mph can cause significant damage.
- Hail: Hailstorms create impact marks and granule loss, which compromises the shingle’s integrity and shortens its life.
- Freeze-Thaw Cycles: In winter, melting snow can refreeze at the eaves, creating ice dams that force water up under your shingles, leading to leaks.
Conclusion
A professional asphalt roof replacement is a critical investment in your home’s safety and value. By understanding the signs of failure, material options, and what to look for in a contractor, you are empowered to make a confident decision. The right roof, installed by a skilled team, provides decades of protection and peace of mind.
At First State Roofing & Exteriors, we are a local, family-owned company dedicated to protecting our Delaware neighbors with integrity and superior craftsmanship. We understand our coastal climate and build roofs designed to withstand it. We know roofing issues don’t keep business hours, which is why we are available 24/7.
If your roof is showing its age or you’re ready for a professional assessment, we’re here to help. We offer free, no-pressure estimates to give you a clear understanding of your roof’s condition. Call us today at (302) 222-4065 to schedule your free inspection and learn more about our expert roof replacement services.


