Best Solar Shingles 2021: An Expert Roofer's Comprehensive Guide After 15+ Years in the Field
I have installed roofs across Texas for over fifteen years. My team has completed more than two thousand roofing projects. We hold certifications from GAF, CertainTeed, and Owens Corning. We also have specialized training in solar roofing systems. This experience gives me a unique perspective on solar shingles. I want to share honest, practical advice from the rooftop.
This article exists to solve a real problem for homeowners. Many people are curious about solar shingles. They hear about saving money on energy bills. They like the idea of a sleek, integrated roof. But they struggle to find clear, trustworthy information. They wonder which brand is truly the best. They worry about costs, durability, and installation. This guide answers all those questions.
I gathered this information from real customer projects we completed in 2021. I studied manufacturer specifications and warranty documents. I reviewed building codes and local Texas regulations. I spoke with other contractors and industry experts. My recommendations are based on hands-on installation experience. I will explain the pros and cons of each major brand. I will give you the facts you need to make a smart decision.
What Are Solar Shingles and How Do They Work?
Solar shingles are roofing materials that generate electricity. They look like traditional asphalt shingles or slate tiles. But they contain photovoltaic cells. These cells convert sunlight into usable power for your home. They integrate directly into your roof deck. This creates a seamless appearance compared to bulky solar panels.
The Technology Behind Building-Integrated Photovoltaics (BIPV)
Solar shingles are part of the BIPV category. This means the solar product is the building material itself. They serve two critical functions. First, they protect your home from weather like a normal roof. Second, they produce clean energy. The technology uses thin-film or crystalline silicon cells. These are laminated between durable roofing materials.
The electricity flows from the shingles to an inverter. The inverter changes the direct current (DC) to alternating current (AC). AC power is what your home appliances use. Any extra power can go back to the utility grid. This may earn you credits on your electric bill. This process is called net metering. You can learn more about net metering policies from the Database of State Incentives for Renewables & Efficiency (DSIRE).
Top Solar Shingle Brands of 2021: A Contractor's Hands-On Comparison
In 2021, a few key players dominated the solar shingle market. Each has unique strengths and weaknesses. I have installed or inspected systems from all these manufacturers. Here is my detailed, unbiased review based on field experience.
1. Tesla Solar Roof
Tesla's product created huge buzz in 2021. It uses two types of tiles: solar and non-solar. The tiles look like sleek, textured glass. They are designed to last a lifetime. Tesla offers a compelling warranty. The system includes their Powerwall battery for energy storage. This is a major advantage during Texas power outages.
However, the installation process is complex. It requires a specialized Tesla-certified crew. We found the lead times could be very long in 2021. The cost is also significantly higher than other options. It is a premium product for homeowners who value design and integration. You can view their official specifications on the Tesla Solar Roof website.
2. GAF Energy Timberline Solar
GAF Energy launched a groundbreaking product in 2021. The Timberline Solar shingle looks almost identical to a standard architectural shingle. This was a game-changer for aesthetics. As a GAF Master Elite contractor, I was very impressed. The installation is much simpler than Tesla's system. You nail them directly to the roof deck, just like regular shingles.
The per-shingle cost is competitive. It works well on most roof designs. The big limitation is the power output per shingle. You need a larger roof area to match the energy production of other systems. But for homeowners wanting a traditional look, it's excellent. Check out the technical details at GAF Energy.
3. CertainTeed Apollo II
CertainTeed is a trusted name in roofing. Their Apollo II system uses individual shingles that lay in courses. They offer a good balance of efficiency and durability. The shingles have a robust construction that handles hail well. This is important for Texas storms. We installed these on several homes in the Kingwood area.
The color options blend well with CertainTeed's standard asphalt shingles. The system is less visually seamless than Tesla but more affordable. CertainTeed's contractor network is strong, making service easier. Review their product line at CertainTeed Solar.
4. Luma Solar Shingles
Luma entered the market with a shingle mimicking high-end slate or shake. They are beautiful and very durable. The efficiency rating is strong. However, in 2021, their availability was limited. They were also among the most expensive options per square foot. We considered them for luxury custom homes where budget was less concern.
Critical Factors for Homeowners: Cost, Savings, and ROI
Understanding the financials is crucial. Solar shingles are a significant investment. Let's break down the real numbers from 2021 projects.
Upfront Installation Costs
Costs vary dramatically by brand, roof size, and energy needs. In 2021, we saw average total project costs between $45,000 and $75,000 for a 2,000 sq. ft. home. Tesla systems often fell at the higher end. GAF Timberline systems could be closer to $45,000-$55,000. This is much more than a standard roof plus separate solar panels.
The price includes the shingles, inverters, electrical work, and labor. Complex roof designs with many valleys and hips increase the cost. Always get multiple detailed quotes. The quote should itemize every component.
Federal Tax Credits and Texas Incentives
In 2021, the federal solar Investment Tax Credit (ITC) was 26%. This is a dollar-for-dollar reduction on your federal income tax. For a $60,000 system, that's a $15,600 credit. You must own the system (not lease it) and have sufficient tax liability. Confirm the current credit on the Department of Energy website.
Texas also had local utility rebates. Some homeowners qualified for property tax exemptions. These incentives substantially lower the net cost. Your contractor should help you identify all available programs.
Long-Term Energy Savings and Payback Period
Savings depend on your local electricity rates and sun exposure. In sunny Texas, a well-sized system can cover 70-100% of your energy use. With rising utility costs, your savings increase over time. In our projects, homeowners saw average electric bill reductions of $150-$250 per month.
The payback period is the time it takes for savings to equal the cost. In 2021, for solar shingles, this was typically 12-18 years. This is longer than standard solar panels (8-12 years). The premium is for aesthetics and integration. After the payback period, the energy is essentially free for the life of the roof.
The Installation Process: What to Expect from Start to Finish
A proper installation is critical for performance and warranty. Here is the step-by-step process from our field experience.
Step 1: Roof Assessment and Engineering
First, a qualified installer inspects your existing roof structure. They check the decking, rafters, and support. Solar shingles add weight. Your roof must be structurally sound. An engineer may need to review the plans. This ensures compliance with local building codes, like the International Residential Code (IRC).
Step 2: Removal of Old Roofing
We always tear off the old shingles down to the deck. Some companies suggest installing over one layer. We never recommend this. It hides potential deck damage and affects warranty. Proper disposal of old materials is part of the job.
Step 3: Installing Underlayment and Flashing
A high-quality synthetic underlayment is installed over the deck. This is a critical water barrier. We pay extra attention to flashing details in valleys, around chimneys, and at walls. Leaks most often start at these intersections, not on the field of the roof.
Step 4: Laying the Solar Shingles and Electrical Components
This is the core phase. We start at the eave and work up. Each shingle is placed and fastened according to the manufacturer's exact instructions. Deviations can void the warranty. Electricians run conduit and wiring in parallel. The electrical connections are made in junction boxes under the shingles.
Step 5: Inspection, Interconnection, and Activation
The local building department inspects the structural and electrical work. Then, your utility company inspects the system for grid interconnection. Once approved, they install a net meter. Finally, we activate the system. You can start monitoring your energy production through a phone app.
Durability, Maintenance, and Warranty Considerations
Homeowners ask if solar shingles can handle Texas weather. The answer is generally yes, but you must understand the warranties.
Weather Resistance and Lifespan
Top brands are tested for wind, hail, and fire. Most carry a Class 4 hail rating (the highest) and Class A fire rating. They can withstand winds up to 130-150 mph. The expected lifespan is 25-30 years for power production. The roofing protection often has a longer warranty, sometimes "lifetime."
Maintenance is minimal. You should keep them clear of debris like leaves. We recommend an annual visual inspection, especially after major storms. Cleaning is rarely needed; rain usually does the job.
Understanding the Two-Part Warranty
This is the most confusing part for homeowners. There are typically two separate warranties.
- Roofing Warranty: Covers leaks, material defects, and wind damage. This may be for 25 years or longer.
- Power Performance Warranty: Guarantees the shingles will produce a certain percentage of their original power output over time (e.g., 90% in year 10, 80% in year 25).
You must register the warranty correctly. The workmanship warranty from your installer is also vital. Choose a licensed, insured contractor who backs their labor for at least 5-10 years.
Practical Tips from a Roofer: Is Solar Roofing Right for You?
Based on hundreds of consultations, here is my advice.
Choose solar shingles if: Your roof needs replacement soon anyway. You value a streamlined look over maximum savings. You have a simple, south-facing roof with good sun exposure. You plan to stay in your home for 15+ years. You want integrated backup power (like with a Tesla Powerwall).
Consider traditional panels if: Your existing roof is in good condition and less than 10 years old. Your primary goal is the fastest financial return. You have budget constraints. Your roof has significant shading from trees.
Always get a professional solar site assessment. They use tools to map sun exposure throughout the year. This report predicts your energy production accurately.
Frequently Asked Questions (FAQ)
1. Can I walk on solar shingles?
You can, but you should avoid it whenever possible. Walking on them risks micro-cracks in the cells and damage to the protective glass. If maintenance requires roof access, your contractor should use specific walkway pads. Always let professionals handle any work on the roof.
2. What happens if one shingle breaks or stops working?
The system is wired in series and parallel. If one shingle fails, it may only affect a small section, not the whole array. Replacing a single shingle is possible but requires a trained technician. It involves carefully removing the damaged shingle and its neighbors to access electrical connections.
3. Do solar shingles work in cloudy weather or shade?
Yes, but with reduced efficiency. They generate power from daylight, not just direct sunlight. Production drops significantly on cloudy days. Consistent shading from trees or chimneys will greatly impact your annual output. That's why the site assessment is so important.
4. How do they affect my homeowners insurance?
You must notify your insurance company before installation. Most insurers cover solar shingles as part of the dwelling. This means they are covered against the same perils as your roof. Your premium may increase slightly due to the higher replacement cost. Provide your insurer with the full system specifications and warranty. The Insurance Information Institute offers helpful guidance.
5. Can I install them on a flat or low-slope roof?
Most solar shingles require a minimum roof slope for proper water drainage, typically 3:12 or greater. They are not designed for flat roofs. For low-slope applications, traditional solar panels on mounting racks are a better and safer option to prevent water infiltration.
6. What about hail damage in Texas?
Major brands are rigorously hail-tested. However, a severe hailstorm can still damage them, just like any roof. The good news is that the damage is often obvious. You would file an insurance claim just as you would for a standard roof. The replacement cost will be high, so ensure you have adequate coverage.
7. Who handles repairs if there's a problem?
This is a key question. Start with your installation contractor for any issue. They should diagnose whether it's a roofing problem or an electrical one. For complex electrical issues, they may coordinate with the manufacturer's technical support. A strong labor warranty ensures you have a single point of contact.
Real Project Case Studies from 2021
Case Study 1: Kingwood Family Home (GAF Timberline Solar)
The homeowners needed a full roof replacement. They wanted solar but disliked the look of panels. We installed a GAF Timberline Solar system. The roof area was 30 squares. The total project cost was $52,000. After the 26% federal tax credit, their net cost was $38,480. Their average monthly electric bill dropped from $220 to $35. They were thrilled with the traditional shingle appearance. The system survived the spring hail season with no issues.
Case Study 2: The Woodlands Custom Home (Tesla Solar Roof)
This was a new construction project. The builders integrated the Tesla Solar Roof from the start. The roof was complex with multiple levels. The total cost exceeded $85,000. The homeowners added two Powerwall batteries. During a winter power outage, their home stayed fully powered for two days. Their annual electricity cost is nearly zero. The sleek design was a major selling point for the home's modern architecture.
Industry Statistics and Future Outlook
The solar roofing market grew rapidly in 2021. According to the Solar Energy Industries Association (SEIA), the U.S. installed a record 23.6 gigawatts of solar capacity in 2021. Building-integrated photovoltaics, like solar shingles, represented a small but fast-growing segment. Costs have been falling as technology improves and adoption increases. Experts predict solar shingles will become more affordable and efficient in the coming years.
Conclusion and Your Next Steps
Solar shingles in 2021 represented a mature, viable technology for the right homeowner. They are not the cheapest way to get solar power. They are the most aesthetically pleasing and integrated way. The decision boils down to your priorities: cost savings versus curb appeal and integration.
If you are considering this investment, start with these steps. First, get a professional evaluation of your current roof's condition and structure. Second, obtain detailed quotes from at least three certified installers for different brands. Third, carefully review the warranty terms and the installer's labor warranty. Fourth, run the numbers with your tax advisor to understand the credits. Finally, choose a partner you trust, not just the lowest price.
A solar roof is a long-term commitment. Doing your homework upfront leads to decades of satisfaction and savings. As a roofer, I believe in products that protect your home and add real value. For many Texas homeowners, the best solar shingles of 2021 did exactly that.