Skip to main content

«  View All Posts

Your Insight into Nail-over Reroofing

February , 2024 | 6 min. read

By Kevin Mills

solo roofer

It's no secret that getting a new roof can strain your wallet! Homeowners on a tight budget often consider nailing over their current roof with new asphalt shingles. But are there risks that come along with it? Is a nail-over reroof better, worse, or the same as a roof replacement? The only way to answer these questions is to compare the two!

For nearly 30 years, our team at RoofCrafters has provided homeowners with transparent and unbiased advice, empowering you to make the right roofing choices. That’s why we want to help determine if a nail-over reroof is right for you and your family.

This article addresses your questions regarding what nail-over reroofing is and if it's the perfect fit for you. Because reroofing is a gray area among homeowners, we're thrilled to assist you in your research! By the time you finish reading, you'll be a reroofing expert, helping you make informed future decisions when it comes to your home. Let's jump in.

What is Nail-over Reroofing?


Nail-over reroofing, also known as overlay or re-cover roofing, is a process where new roofing material, typically asphalt shingles, is installed over the existing roof. Instead of removing the old shingles, the new ones are nailed directly on top. This method is chosen as a cost-effective alternative to a complete roof replacement. It's essential to understand the pros and cons of nail-over reroofing before deciding if it's the right approach for your home.

A roofer sealing nail pops on a shingle roof with caulk

Pros of Nail-Over Reroofing:

  1. Cost-Effective: Since it avoids the labor-intensive process of tearing off the old roof, nail-over reroofing is generally more affordable than a complete replacement.

  2. Time-Saving: The installation process is quicker, reducing the time your home is exposed to the elements.

  3. Less Disruption: It generates less noise and mess compared to a full tear-off, making it a more convenient option for homeowners.

Florida-style stucco home with new asphalt shingles

Cons of Nail-Over Reroofing:

  1. Weight: Adding a second layer of shingles increases the load on the roof structure, which may exceed the recommended weight limit.

  2. Limited Inspection: It can be challenging to inspect the underlying roof structure and identify potential issues when new shingles are installed over the existing ones.

  3. Shorter Lifespan: The new layer of shingles may not last as long as they would on a new roof, potentially leading to more frequent replacements.

  4. No Resale Value: A new roof increases your home’s value, which means you’ll make back some of the cost when selling your home. A nail-over reroof won’t add much or anything at all to your home’s value, though.

    A nail-over reroof doesn’t have a chance to qualify for the 50-year non-prorated enhanced warranty, however. This is because the roof wasn’t fully replaced using all the manufacturer's components and materials. Keep this in mind!

  5. Material Warranties: The shingles nailed over an old asphalt roof come out of the package with a material warranty. Depending on the shingle, this will be anywhere from 25 to 30 years (the warranty prorates after a certain number of years). 

lifetime warranty sign

Deciding whether to opt for nail-over reroofing depends on factors like budget, roof condition, and long-term goals for your home. It's vital to consult with a roofing professional to assess your specific situation and determine the most suitable approach! Speaking of suitable approach, is nail-over reroofing right for everyone, and if not, who's is best-suited for?

New call-to-action

Ideal Homes for Nail-over Reroofing


Nail-over reroofing can be an ideal solution for certain homes, especially those that meet specific criteria. Here's a breakdown to help you understand if your home is suitable for this approach:

  1. Structurally Sound Roofs:

    • Ideal Homes: Nail-over reroofing is best suited for homes with existing roofs that are structurally sound and in relatively good condition.

    • Fun Fact: Did you know that homes with roofs featuring minimal damage or wear are like a solid foundation for a successful nail-over reroofing project?

  2. Single-Layered Existing Roofs:

    • Ideal Homes: Homes with a single layer of existing roofing material, such as asphalt shingles, are generally better candidates for nail-over reroofing.

    • Fun Fact: Just like a cake with a single layer allows for easier and more effective frosting, a single-layered roof simplifies the nail-over reroofing process.

  3. Proper Weight Factors:

    • Ideal Homes: Nail-over reroofing is suitable for homes where adding another layer of shingles doesn't exceed the recommended weight capacity of the roof structure.

    • Fun Fact: Maintaining the right balance ensures the longevity and stability of your roof.

  4. Budget-Friendly Renovations:

    • Ideal Homes: Homeowners working within a budget may find nail-over reroofing a cost-effective way to enhance their roof's appearance and performance.

    • Fun Fact: Just as budget-friendly alternatives can elevate your home's aesthetics, nail-over reroofing can provide a fresh look without breaking the bank.

paper money house built with hundred dollar bills

It's crucial for you to consult with a skilled roofer to assess your specific situation and determine if nail-over reroofing aligns with your needs and goals. While it may be a suitable option for some, each home's unique characteristics should be considered for the best outcome.

The Asphalt Shingle Color Guide 

Is Nail-over Reroofing Right for You?


The decision between nail-over reroofing and a complete roof replacement hinges on various factors, each playing a crucial role in ensuring the longevity and effectiveness of your roof. As we've explored the concept of nail-over reroofing, it's clear that this approach offers a decent alternative for certain homes, especially those with structurally sound roofs, a single layer of existing material, and a need for budget-friendly renovations.

It's essential to take away that not all roofing systems are a fit for this method, so sitting down with professionals like RoofCrafters and discussing the details will help narrow your search for a solution. While you're still in your research phase, though, take a look at "Optimal Timing for Roof Replacement: Seasonal Considerations" so you can be aware of what weather is best for roofing tasks.

When you're ready to reach out to an expert, allow us to give you a helping hand! Drop us a line on our contact page to speak with one of our friendly representatives. 

Schedule an Inspection

Kevin Mills

My name is Kevin Mills, and I am the lead estimator for RoofCrafters’ Tampa division. I’m originally from Michigan, and I enjoy hunting, fishing, and spending any free time outdoors. What I’m most passionate about, though, is helping business owners and homeowners alike achieve their roofing goals, all while providing a seamless customer journey.