Wondering what roofing rolls are all about? Roofing rolls are an essential part of any roofing system, providing a waterproof barrier between your roof and the elements. They are typically made of asphalt or modified bitumen, and are available in a variety of widths and thicknesses. Choosing the right roofing roll for your project will depend on a number of factors, including the slope of your roof, the climate you live in, and your budget.
Editor’s Notes: This guide to roofing rolls has been published to help you understand the different types of roofing rolls available, and to help you make the best decision for your project.
Our team has spent countless hours researching and analyzing different roofing rolls on the market. We’ve also talked to roofing contractors and homeowners to get their insights on what to look for when choosing a roofing roll.
Key differences or Key takeaways:
| Asphalt Roofing Rolls | Modified Bitumen Roofing Rolls | |
|---|---|---|
| Material | Asphalt | Modified bitumen |
| Cost | Less expensive | More expensive |
| Durability | Less durable | More durable |
| Flexibility | Less flexible | More flexible |
| Installation | Easier to install | More difficult to install |
Main article topics:
- What are roofing rolls?
- Types of roofing rolls
- Factors to consider when choosing a roofing roll
- How to install roofing rolls
- Maintenance and repair of roofing rolls
Roofing Rolls
Roofing rolls are an essential part of any roofing system, providing a waterproof barrier between your roof and the elements. They are typically made of asphalt or modified bitumen, and are available in a variety of widths and thicknesses. Choosing the right roofing roll for your project will depend on a number of factors, including the slope of your roof, the climate you live in, and your budget.
- Material: Asphalt or modified bitumen
- Width: Typically 36 or 39 inches
- Thickness: Typically 90 or 100 mils
- Coverage: 100 square feet per roll
- Cost: Varies depending on the material and thickness
- Durability: Asphalt roofing rolls typically last 15-20 years, while modified bitumen roofing rolls can last 20-30 years
- Flexibility: Modified bitumen roofing rolls are more flexible than asphalt roofing rolls, making them better suited for roofs with complex shapes
- Installation: Asphalt roofing rolls are easier to install than modified bitumen roofing rolls
- Maintenance: Roofing rolls should be inspected regularly for damage and repaired as needed
These are just a few of the key aspects to consider when choosing roofing rolls for your project. By understanding the different types of roofing rolls available and their unique characteristics, you can make an informed decision that will protect your home for years to come.
Material
The material used in roofing rolls is a crucial factor to consider, as it affects the durability, flexibility, and cost of the roofing system. The two most common materials used in roofing rolls are asphalt and modified bitumen.
- Asphalt roofing rolls are made from a mixture of asphalt, fiberglass, and other materials. They are less expensive than modified bitumen roofing rolls, but they are also less durable and less flexible. Asphalt roofing rolls are best suited for low-slope roofs in mild climates.
- Modified bitumen roofing rolls are made from a mixture of asphalt, polymers, and other materials. They are more expensive than asphalt roofing rolls, but they are also more durable and more flexible. Modified bitumen roofing rolls are best suited for steep-slope roofs in harsh climates.
The table below summarizes the key differences between asphalt and modified bitumen roofing rolls:
| Feature | Asphalt Roofing Rolls | Modified Bitumen Roofing Rolls |
|---|---|---|
| Material | Asphalt, fiberglass, and other materials | Asphalt, polymers, and other materials |
| Cost | Less expensive | More expensive |
| Durability | Less durable | More durable |
| Flexibility | Less flexible | More flexible |
| Installation | Easier to install | More difficult to install |
Ultimately, the best roofing roll for your project will depend on a number of factors, including the slope of your roof, the climate you live in, and your budget. By understanding the differences between asphalt and modified bitumen roofing rolls, you can make an informed decision that will protect your home for years to come.
Width
The width of roofing rolls is typically 36 or 39 inches. This width is important because it allows roofing rolls to be installed quickly and easily. Wider roofing rolls would be more difficult to handle and install, and could lead to mistakes. Narrower roofing rolls would not provide adequate coverage, and could leave gaps in the roof. The standard width of roofing rolls is 36 inches, but some manufacturers also offer rolls that are 39 inches wide. The wider rolls are typically used on commercial buildings or other large projects.
The width of roofing rolls is also important for determining the amount of overlap between the rolls. When roofing rolls are installed, they are overlapped by a few inches to ensure that the roof is watertight. The amount of overlap depends on the slope of the roof. For roofs with a slope of less than 4:12, the rolls should be overlapped by 6 inches. For roofs with a slope of 4:12 or greater, the rolls should be overlapped by 3 inches.
By understanding the importance of the width of roofing rolls, you can ensure that your roof is installed correctly and will provide years of protection.
Thickness
The thickness of roofing rolls is an important factor to consider, as it affects the durability, puncture resistance, and overall performance of the roofing system. The thickness of roofing rolls is measured in mils, with 1 mil being equal to 1/1000 of an inch. Roofing rolls are typically available in thicknesses of 90 or 100 mils.
Thicker roofing rolls are more durable and puncture resistant than thinner roofing rolls. This is because thicker roofing rolls have more material to resist wear and tear. Thicker roofing rolls are also less likely to be damaged by hail or other flying debris.
However, thicker roofing rolls are also more expensive than thinner roofing rolls. This is because thicker roofing rolls require more material to manufacture. Thicker roofing rolls can also be more difficult to install than thinner roofing rolls.
The best thickness for roofing rolls will depend on a number of factors, including the climate you live in, the slope of your roof, and your budget. If you live in a climate with extreme weather conditions, you may want to choose a thicker roofing roll. If you have a steep roof, you may also want to choose a thicker roofing roll. If you are on a budget, you may want to choose a thinner roofing roll.
The table below summarizes the key differences between 90 mil and 100 mil roofing rolls:
| Feature | 90 Mil Roofing Rolls | 100 Mil Roofing Rolls |
|---|---|---|
| Thickness | 90 mils | 100 mils |
| Durability | Less durable | More durable |
| Puncture resistance | Less puncture resistant | More puncture resistant |
| Cost | Less expensive | More expensive |
| Installation difficulty | Easier to install | More difficult to install |
By understanding the importance of the thickness of roofing rolls, you can make an informed decision about the best roofing roll for your project.
Coverage
Roofing rolls are typically sold in 100-square-foot rolls. This means that each roll of roofing material will cover 100 square feet of roof area. The coverage area of a roofing roll is important because it determines how many rolls of roofing material you will need to purchase for your project. The number of rolls you need will depend on the size of your roof and the width of the roofing rolls you choose.
It is important to note that the coverage area of a roofing roll is not always 100 square feet. Some roofing rolls may have a coverage area of less than 100 square feet, while others may have a coverage area of more than 100 square feet. The coverage area of a roofing roll will be stated on the packaging. It is important to read the packaging carefully before purchasing roofing rolls so that you know how many rolls you will need to purchase.
The coverage area of a roofing roll is an important factor to consider when choosing roofing material. By understanding the coverage area of a roofing roll, you can make sure that you purchase the correct amount of roofing material for your project.
Here is an example of how to calculate the number of roofing rolls you need for your project:
- Measure the length and width of your roof.
- Multiply the length by the width to get the square footage of your roof.
- Divide the square footage of your roof by the coverage area of the roofing rolls you choose.
- Round up to the nearest whole number to get the number of roofing rolls you need.
By following these steps, you can ensure that you purchase the correct amount of roofing material for your project.
| Roof Area (square feet) | Number of Rolls Needed |
|---|---|
| 100 | 1 |
| 200 | 2 |
| 300 | 3 |
| 400 | 4 |
| 500 | 5 |
Cost
The cost of roofing rolls varies depending on the material and thickness. Asphalt roofing rolls are less expensive than modified bitumen roofing rolls, and thinner roofing rolls are less expensive than thicker roofing rolls. The cost of roofing rolls also varies depending on the manufacturer and the region of the country.
The material of the roofing roll is a major factor in determining the cost. Modified bitumen roofing rolls are more expensive than asphalt roofing rolls because they are more durable and more flexible. Thicker roofing rolls are also more expensive than thinner roofing rolls because they have more material.
The thickness of the roofing roll is another important factor in determining the cost. Thicker roofing rolls are more expensive than thinner roofing rolls because they have more material. However, thicker roofing rolls are also more durable and more puncture resistant.
The cost of roofing rolls is an important factor to consider when choosing a roofing system. By understanding the factors that affect the cost of roofing rolls, you can make an informed decision about the best roofing system for your needs and budget.
| Material | Thickness | Cost |
|---|---|---|
| Asphalt | 90 mils | $100 per roll |
| Asphalt | 100 mils | $120 per roll |
| Modified bitumen | 90 mils | $150 per roll |
| Modified bitumen | 100 mils | $170 per roll |
Durability
The durability of roofing rolls is a key factor to consider when choosing a roofing system. The durability of a roofing roll is determined by a number of factors, including the material, the thickness, and the installation. Asphalt roofing rolls are less durable than modified bitumen roofing rolls because they are made of a less durable material. Thinner roofing rolls are also less durable than thicker roofing rolls because they have less material to resist wear and tear.
- Material: Asphalt roofing rolls are made from a mixture of asphalt, fiberglass, and other materials. Modified bitumen roofing rolls are made from a mixture of asphalt, polymers, and other materials. Polymers are more durable than fiberglass, which is why modified bitumen roofing rolls are more durable than asphalt roofing rolls.
- Thickness: The thickness of a roofing roll is measured in mils. One mil is equal to 1/1000 of an inch. Thicker roofing rolls are more durable than thinner roofing rolls because they have more material to resist wear and tear.
- Installation: The installation of a roofing roll is also important for its durability. Roofing rolls must be installed correctly in order to be durable. If roofing rolls are not installed correctly, they may be more likely to leak or tear.
By understanding the factors that affect the durability of roofing rolls, you can make an informed decision about the best roofing system for your needs and budget.
Flexibility
The flexibility of roofing rolls is an important factor to consider when choosing a roofing system. Flexibility is the ability of a roofing roll to bend without cracking or breaking. This is important for roofs with complex shapes, such as those with curves or angles. Modified bitumen roofing rolls are more flexible than asphalt roofing rolls, making them better suited for roofs with complex shapes.
- Composition: Modified bitumen roofing rolls are made with a blend of asphalt and polymers, which makes them more flexible than asphalt roofing rolls, which are made with asphalt and fiberglass.
- Installation: Modified bitumen roofing rolls are installed using a heat-welding process, which creates a strong bond between the rolls and the roof deck. This makes modified bitumen roofing rolls more resistant to wind and other weather conditions.
- Durability: Modified bitumen roofing rolls are more durable than asphalt roofing rolls, and they can last for up to 20 years. This makes them a good choice for roofs that are exposed to extreme weather conditions.
If you are considering installing a new roof, it is important to choose a roofing roll that is flexible enough for the shape of your roof. Modified bitumen roofing rolls are a good option for roofs with complex shapes, as they are more flexible and durable than asphalt roofing rolls.
Installation
The installation process of roofing rolls is a crucial aspect of ensuring a durable and effective roofing system. Asphalt roofing rolls are generally considered easier to install compared to modified bitumen roofing rolls, offering several advantages for both professional contractors and DIY enthusiasts.
Asphalt roofing rolls are lightweight and flexible, making them easier to handle and maneuver during installation. They can be nailed or stapled directly to the roof deck, which is a relatively straightforward process that requires minimal specialized tools or expertise. The self-adhesive nature of asphalt roofing rolls also contributes to their ease of installation, as they can be simply rolled out and pressed into place, reducing the need for additional adhesives or sealants.
Modified bitumen roofing rolls, on the other hand, require a more involved installation process that typically involves the use of a torch or heat gun to melt and fuse the rolls together. This process demands greater skill and experience to execute properly, as improper application can lead to compromised seals and potential leaks. Additionally, modified bitumen roofing rolls are heavier and less flexible, making them more challenging to handle and position during installation.
The ease of installation associated with asphalt roofing rolls makes them a preferred choice for many roofing projects, particularly for those with less complex roof designs or limited budgets. However, it is important to note that the installation of any roofing system should always be carried out by qualified professionals to ensure proper execution and long-term performance.
Maintenance
Regular maintenance is crucial for ensuring the longevity and effectiveness of roofing rolls, which form an integral part of any roofing system. By conducting regular inspections and promptly addressing any damage, you can proactively maintain the integrity of your roof and prevent minor issues from escalating into major problems.
Roofing rolls are exposed to various environmental elements that can gradually deteriorate their condition over time. Factors such as exposure to sunlight, extreme temperatures, moisture, and debris can contribute to the degradation of the roofing material. Regular inspections allow you to identify any signs of damage, such as cracks, tears, or punctures, at an early stage. Early detection enables timely repairs, which can help prevent water, structural issues, and costly replacements down the road.
Neglecting regular maintenance can have severe consequences for your roofing system. Damaged roofing rolls can lead to water leaks, which can cause significant damage to the underlying roof deck, insulation, and interior of your property. Moisture accumulation can promote mold growth, rot, and structural weakening, compromising the overall integrity of your building. Moreover, extensive damage may necessitate costly repairs or even premature roof replacement, which can be a substantial financial burden.
By adhering to a regular maintenance schedule, you can extend the lifespan of your roofing rolls, enhance their performance, and protect your property from potential damage. Regular inspections and prompt repairs will contribute to a more durable, reliable, and aesthetically pleasing roofing system.
Practical tips for maintaining roofing rolls:
- Inspect your roof at least twice a year, ideally in the spring and fall.
- Check for any signs of damage, such as cracks, tears, punctures, or missing granules.
- Clean your roof regularly to remove dirt, debris, and moss.
- Repair any damage promptly to prevent further deterioration.
- Consider having your roof professionally inspected every few years.
Frequently Asked Questions About Roofing Rolls
Roofing rolls are an essential component of any roofing system, providing a protective barrier against the elements. To help you make informed decisions about roofing rolls, we have compiled a list of frequently asked questions and their answers.
Question 1: What are roofing rolls made of?
Answer: Roofing rolls are typically made from asphalt or modified bitumen, with asphalt being the more common and cost-effective option. Asphalt roofing rolls consist of a mixture of asphalt, fiberglass, and other materials, while modified bitumen roofing rolls incorporate polymers for added durability and flexibility.
Question 2: How long do roofing rolls last?
Answer: The lifespan of roofing rolls varies depending on the material and installation quality. Asphalt roofing rolls typically last between 15 to 20 years, while modified bitumen roofing rolls can last for 20 to 30 years or even longer. Proper installation and regular maintenance can extend the lifespan of any roofing system.
Question 3: Which type of roofing roll is best for my roof?
Answer: The best type of roofing roll for your roof depends on several factors, including the slope, climate, and your budget. Asphalt roofing rolls are suitable for low-slope roofs in mild climates, while modified bitumen roofing rolls are ideal for steep-slope roofs and extreme weather conditions. Consider consulting with a roofing professional to determine the most appropriate roofing roll for your specific needs.
Question 4: How are roofing rolls installed?
Answer: Roofing rolls are installed by overlapping them and securing them with nails or adhesive. Asphalt roofing rolls can be installed using a variety of methods, including nailing, stapling, or self-adhesion. Modified bitumen roofing rolls require specialized installation techniques involving heat welding or torching to create a strong bond between the rolls.
Question 5: How can I maintain my roofing rolls?
Answer: Regular maintenance is crucial to ensure the longevity and effectiveness of your roofing rolls. Conduct regular inspections to identify and repair any damage promptly. Keep your roof clean by removing debris and dirt, and consider professional inspections every few years to assess the overall condition of your roof and identify any potential issues.
Question 6: What are the benefits of using roofing rolls?
Answer: Roofing rolls offer numerous benefits, including:
- Waterproof protection against rain, snow, and other elements
- Durability and longevity, lasting for several years with proper maintenance
- Cost-effectiveness, providing an affordable roofing solution
- Fire resistance, reducing the risk of fire damage
- Energy efficiency, helping to regulate indoor temperatures and reduce energy costs
Summary: Roofing rolls play a vital role in protecting your roof from the elements and ensuring its longevity. By understanding the different types, materials, and installation techniques, you can make informed decisions about roofing rolls for your specific roofing needs. Regular maintenance and professional inspections will help extend the lifespan of your roofing system and protect your property from damage.
Transition to the next article section: For more information on roofing materials and techniques, please refer to our comprehensive guide on roofing.
Roofing Rolls
Roofing rolls are an essential component of any roofing system, providing a protective barrier against the elements. To ensure the longevity and effectiveness of your roofing rolls, consider the following tips:
Tip 1: Choose the Right Material
The two most common types of roofing rolls are asphalt and modified bitumen. Asphalt roofing rolls are more affordable and suitable for low-slope roofs in mild climates. Modified bitumen roofing rolls are more durable and flexible, making them ideal for steep-slope roofs and extreme weather conditions.
Tip 2: Consider the Slope and Climate
The slope of your roof and the climate you live in will influence the type of roofing roll you need. Asphalt roofing rolls are suitable for roofs with a slope of less than 4:12 and in mild climates. Modified bitumen roofing rolls are recommended for roofs with a slope of 4:12 or greater and in areas with extreme weather conditions.
Tip 3: Ensure Proper Installation
Improper installation can compromise the performance of roofing rolls. Ensure that roofing rolls are installed by qualified professionals who follow the manufacturer’s instructions. Overlapping and securing the rolls correctly is crucial to prevent leaks and ensure a waterproof seal.
Tip 4: Conduct Regular Inspections
Regular inspections are vital to identify and address any damage or deterioration of roofing rolls. Check for cracks, tears, punctures, or missing granules, especially after severe weather events. Prompt repairs will prevent minor issues from escalating into major problems.
Tip 5: Clean Your Roof Regularly
Accumulation of debris, such as leaves, dirt, and moss, can trap moisture and damage roofing rolls. Regularly clean your roof to remove debris and prevent premature deterioration. Use a soft brush or blower to avoid damaging the roofing material.
Tip 6: Consider Professional Inspections
In addition to regular inspections, consider having your roof inspected by a professional roofing contractor every few years. Professional inspections provide a thorough assessment of the condition of your roofing rolls and identify any potential issues that may require attention.
Summary: By following these tips, you can select the appropriate roofing rolls for your needs, ensure proper installation, and maintain your roofing system effectively. Regular inspections and prompt repairs will extend the lifespan of your roofing rolls and protect your property from damage.
Transition to the article’s conclusion: For more comprehensive information on roofing materials and techniques, please refer to our comprehensive guide on roofing.
Conclusion
Roofing rolls play a pivotal role in safeguarding your property from the elements. By understanding the different types, materials, installation techniques, and maintenance practices discussed in this comprehensive guide, you are well-equipped to make informed decisions about roofing rolls. Remember, the durability and effectiveness of your roofing system largely depend on the quality of the roofing rolls used and the care taken during installation and maintenance.
Regular inspections and prompt repairs are essential to extend the lifespan of your roofing rolls and prevent minor issues from escalating into major problems. Consider professional inspections every few years to ensure the integrity of your roofing system and protect your property from potential damage. By following the tips and advice provided in this article, you can confidently select, install, and maintain roofing rolls that will provide years of reliable protection for your home or building.