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Roofing Warranties

Date: January 18, 2024

Roofing contracts often incorporate warranty terms that cover both materials and workmanship, providing homeowners with assurance regarding the durability and quality of their new roofs. In the contemporary landscape, where numerous roofing shingles are heavily advertised, understanding the significance and types of warranties associated with your roofing project becomes crucial. Being informed about these roofing warranties ensures that homeowners are well-prepared and can make informed decisions when navigating the diverse options available in the market.

Here are key insights to enhance your understanding of the roofing warranties and shingle manufacturers, offering a comprehensive overview for your upcoming roofing project.

What is Roofing Material Warranty?

The material warranty is pivotal, assuring homeowners or clients that the roofing materials meet specific standards and are free from defects for a predetermined period. For instance, a contract may stipulate a 20-year material warranty, ensuring that any issues arising from manufacturing defects during this timeframe prompt the contractor or manufacturer to repair or replace the faulty materials at no extra cost to the client.

What Is a Workmanship Warranty?

In parallel, workmanship warranties guarantee the quality of the installation and craftsmanship involved. Such warranties often cover a specified period ensuring that any problems arising from improper installation or workmanship errors are the responsibility of the contractor to rectify without additional charges to the client. 

How Do Material and Workmanship Warranty Work Together?

Combining these warranties is common in roofing contracts, providing property owners with comprehensive coverage. For example, a roofing contract might specify a 25-year material warranty and a 10-year workmanship warranty. This implies that any issues with materials within the first 25 years or workmanship-related problems within the first 10 years would be addressed and rectified by the contractor.

These warranty terms instill confidence in clients and underscore the contractor's commitment to the quality of materials and workmanship. Thoroughly understanding these warranty terms before signing a roofing contract is crucial in order to ensure that property owners are comfortable with the level of protection and support offered.

Shingle Manufacturers and Their Shingle Warranty:

The warranty terms provided by shingle manufacturers play an important role in assuring homeowners of the quality and durability of the materials used on their roofs. Understanding these specific warranty terms from shingle manufacturers allows homeowners to make the right decisions when selecting roofing materials, taking into account the duration of coverage, non-prorated periods, and the resilience of the shingles under various environmental conditions. Here's a breakdown of some prominent shingle manufacturers and their respective warranty offerings:

1. IKO

  •    Shingle Warranty: 40 years
  •    Non-Prorated Period: 25 years
  •    Wind Rating: 130 mph

Overview: IKO offers a substantial 40-year shingle warranty, with the added benefit of a 25-year non-prorated period. This means that for the first 25 years, any issues covered by the warranty will be addressed without cost to the client. Additionally, the shingles boast an impressive 130 mph wind rating, ensuring resilience in various weather conditions.

2. Owens Corning (OC)

  •    Shingle Warranty: 50 years
  •    Non-Prorated Period: 10 years
  •    Wind Rating: 130 mph

Overview: Owens Corning provides a comprehensive 50-year shingle warranty with a 10-year non-prorated period. This implies that any covered issues will be resolved for the initial decade without additional charges. The shingles also carry a robust 130 mph wind rating, contributing to their durability and suitability for areas prone to high winds.

3. GAF

  •    Shingle Warranty: 40 years
  •    Non-Prorated Period: 10 years
  •    Wind Rating: 110 mph

Overview: GAF offers a 40-year shingle warranty featuring a 10-year non-prorated period. During the first decade, covered issues are addressed without extra costs to the client. The shingles have a wind rating of 110 mph, providing solid protection against moderate wind conditions.

4. Atlas

  •    Shingle Warranty: 30 years
  •    Non-Prorated Period: 10 years
  •    Wind Rating: 130 mph

Overview: Atlas provides a 30-year shingle warranty with a 10-year non-prorated period. This means that for the initial decade, any covered issues will be resolved without additional charges. The shingles boast a robust 130 mph wind rating, indicating their ability to withstand high wind speeds.

Factors That May Affect Your Roofing Warranties:

Identifying certain pitfalls to steer clear of is crucial for safeguarding the integrity of your roof warranties and ensuring enduring protection for your investment. Take note of these issues to maintain the longevity of your roof coverage.

1. Failure to Follow Manufacturer Guidelines - Manufacturer guidelines for roofing materials encompass proper installation techniques, recommended adhesives, and ventilation requirements. Deviations from these guidelines may void warranty coverage. It is crucial for homeowners to familiarize themselves with and adhere to these specifications to ensure warranty validity.

2. Lack of Regular Maintenance - Regular maintenance is essential for preserving the longevity of roofing materials and workmanship. Tasks such as gutter cleaning, routine inspections, and prompt issue resolution are integral to maintaining warranty validity. Homeowners should follow a checklist of routine tasks to ensure proper care of their roofs.

3. Using Unauthorized Repair Materials - Unauthorized repair materials, when used on roofing systems, can compromise the integrity of the original installation. Homeowners should consult with the manufacturer or contractor before conducting any repairs to ensure that the materials used comply with warranty terms.

4. Extreme Weather Conditions - Different weather conditions, including hail, storms, and extreme temperatures, can impact roofing materials. Manufacturers may adjust warranty terms based on geographic locations prone to specific weather challenges. Homeowners should be aware of the potential effects of their local climate on warranty coverage.

5. Neglecting Roof Ventilation - Proper roof ventilation is crucial to prevent moisture buildup, which can affect materials and workmanship. Inadequate ventilation may lead to warranty exclusions. Homeowners should ensure their roofing systems are adequately ventilated to maintain warranty coverage.

6. Failure to Document and Report Issues - Homeowners should document any issues with their roofs using photographs and promptly report them to the contractor or manufacturer. Failure to report problems in a timely manner may affect the warranty resolution process, emphasizing the importance of proactive communication.

7. Unapproved Alterations or Modifications - Certain alterations or modifications, such as adding rooftop structures or solar panels, may affect warranty coverage. Homeowners should consult with the manufacturer or contractor before making significant changes to their roofing systems to ensure compliance with warranty terms.

8. Neglecting to Transfer Warranties - In the event of property ownership changes, homeowners should follow a step-by-step guide to transfer warranties. Neglecting this process may result in gaps in coverage for subsequent owners, underlining the importance of ensuring a smooth transfer of warranty responsibilities.

9. Failure to Register the Warranty - Registering the warranty with the manufacturer within the specified timeframe is crucial. Homeowners should follow the registration process outlined by the manufacturer to ensure the warranty is valid. Failure to register may impact the coverage provided by the warranty.


Roofing warranties and contracts involve a multifaceted understanding of key components, from material warranties to workmanship guarantees. As homeowners undertake roofing projects, the importance of comprehending the intricate details of warranty terms cannot be overstated. The synergy between material and workmanship warranties, as well as the confidence they instill, underscores the commitment of contractors to delivering enduring quality.

Key things affecting roofing warranties include following guidelines, keeping up with maintenance, and being careful with changes. Taking a proactive approach is crucial for long-lasting protection. Consulting with roofing experts is vital—they can assist you in understanding the importance of these warranties further and help ensure a successful roofing project. With these insights and expert guidance, you're making sure your roof stays strong and your investment lasts a long time.

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