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Writer's pictureWilliam Martin

Why You Shouldn’t Do a Roof-Over for Shingles in Texas: Protect Your Home the Right Way


multiple layers of shingles on roof layover

When it’s time to address roofing concerns, some homeowners consider the "roof-over" method, where new shingles are laid directly over an existing roof. While this option may seem like a cost-effective and time-saving solution, it comes with significant drawbacks—especially in Texas cities like Houston and Austin, where weather conditions can be extreme.

At Martin Roofing and Solar, we don’t cut corners. That’s why we’ll never do a roof-over—we believe in doing things the right way to ensure the safety and longevity of your home. Here's why a roof-over may not be the best choice for your Texas home and why a full roof replacement is a superior investment.


What Is a Roof-Over?

A roof-over involves placing a new layer of shingles directly on top of an old one instead of removing the existing roof material creating two layers. Although it reduces upfront costs and installation time, this method isn’t always suitable, particularly in areas like Houston and Austin with their unique climates.

At Martin Roofing and Solar, we refuse to compromise on quality or your home's safety. A roof-over might seem like a quick fix, but we know that the risks far outweigh the benefits, which is why we only offer solutions that adhere to the highest standards.


1. Texas Weather Is Too Demanding

Heat in Houston and Austin

Texas summers can bring relentless heat, with temperatures often exceeding 100°F. The extra layer from a roof-over traps heat, intensifying the temperature inside your home and straining your HVAC system.

Humidity in Houston and Austin

Houston's high humidity creates ideal conditions for mold and moisture buildup. A roof-over can mask underlying water damage, leading to structural issues that are harder to detect until they become severe. For example, roof decking may begin to rot prematurely due to trapped water or humidity.

Wind and Storms

Both Austin and Houston experience strong winds, hail, and occasional hurricanes. A roof-over lacks the durability of a full replacement, making it more susceptible to damage during storms. Flying debris can penetrate the weaker structure, compromising your roof's ability to protect your home.


2. Structural Concerns with Roof-Overs

Added Weight

Roof shingles are heavy, and adding a second layer significantly increases the load on your home's structure. This extra weight may lead to sagging, leaks, or even collapse over time—particularly in older homes.

Hiding Existing Damage

A roof-over conceals the existing roof, making it impossible to inspect for hidden damage such as rotting wood, cracks, or improperly installed flashing. If undetected, these issues can worsen and require more extensive (and expensive) repairs later.

Limited Lifespan

The lifespan of a roof-over is typically shorter than that of a completely replaced roof. Over time, the added layers can warp, curl, or crack under the intense Texas sun, reducing your roof’s effectiveness.


3. Roof-Overs Are More Expensive Long-Term

While a roof-over might save money upfront, it’s actually the costlier option over time. Here’s why:

  • Shorter Lifespan Equals More Frequent Replacements: Roof-overs last maybe 10-15 years, compared to the 20-30 years of a full roof replacement. This means you’ll likely need another roof sooner, doubling the cost over time.

  • Higher Cost Per Year: Divide the initial cost of a roof-over by its shorter lifespan, and you’ll find the cost per year is much higher than a proper roof replacement.

  • Additional Repairs on the Next Replacement: Removing multiple layers of shingles during the next replacement will incur higher labor costs, further increasing your total expenses.

At Martin Roofing and Solar, we understand that cutting corners now can lead to costly issues down the road. That's why we never recommend a roof-over—it’s not worth the risks or expenses for Texas homeowners.


4. Code Compliance and Warranty Issues

Texas Building Codes

In some Texas counties, building codes prohibit more than two layers of shingles. A roof-over might violate these regulations, putting homeowners at risk of fines or requiring costly rework to comply.

Voided Warranties

Many roofing material manufacturers will void warranties if their products are used in a roof-over. Without a warranty, you’ll bear the full cost of repairs if the new layer fails.


5. Energy Efficiency and Ventilation Problems

Poor Insulation

The additional layer in a roof-over reduces ventilation, leading to inefficient heat dissipation. This not only increases cooling costs but also accelerates roof degradation.

Austin's Energy Codes

Austin places a strong emphasis on energy efficiency. A roof-over typically doesn’t meet modern energy codes or standards, meaning your home could fall short of eco-friendly benchmarks and increase your utility bills.


6. Reduced Curb Appeal and Home Value

Roof-overs often look bulky and uneven with multiple layers of shingles, detracting from your home’s curb appeal. Prospective buyers in competitive markets like Austin and Houston may be wary of a home with a roof-over, perceiving it as a sign of corner-cutting.


7. Financing Options for Your Roofing Needs

At Martin Roofing and Solar, we understand that roofing projects can be a significant investment. That’s why we offer flexible roof financing options to homeowners in Houston and Austin.

  • Low Monthly Payments: Spread the cost of your new roof over time, making it manageable for any budget.

  • Fast Approval: Our financing process is quick and straightforward, so you can get started on your roofing project without delays.

  • Customized Plans: We work with you to create a financing solution tailored to your specific needs and financial situation.

Don’t let upfront costs prevent you from protecting your home. With our financing options, you can have peace of mind knowing your roof is in expert hands.


Why Choose Martin Roofing and Solar?

If you’re a homeowner in Houston or Austin, Martin Roofing and Solar is your trusted partner for all roofing needs. Here’s why we’re the best roofing company near me for Texans:

  • Experienced Professionals: With years of expertise in the unique challenges posed by Texas weather, we deliver tailored solutions for your home.

  • Comprehensive Services: From inspections to full roof replacements, we handle everything with precision and care.

  • Top-Quality Materials: We use only durable, energy-efficient materials to ensure your roof stands the test of time.

  • Customer-Centric Approach: We prioritize transparency, competitive pricing, and unparalleled service.

At Martin Roofing and Solar, we don’t take shortcuts. A roof-over might seem like an easy fix, but we’re committed to doing the job the right way—every time.


Free Roof Inspections for Houston and Austin Homes

Don’t let hidden damage go unnoticed. Schedule a free roof inspection Houston and free roof inspection Austin homeowners trust. Our expert team will evaluate your roof’s condition, provide honest recommendations, and guide you through the best course of action.


Your Trusted Partner for Roofing Excellence

While a roof-over might seem like a quick fix, the risks far outweigh the benefits—especially in Texas. At Martin Roofing and Solar, we’re committed to providing solutions that prioritize durability, energy efficiency, and long-term value.

For the best roofing company in Houston and Austin storm damage roofing, contact us today. Let us help you protect your home and ensure your peace of mind, one shingle at a time.




roof layover roof with multiple layers of shingles

Houston: 832-617-4037


Austin: 512-298-2944

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