Best DIY Roofing Kits – Affordable & Easy Installation

Introduction to DIY Roofing Kits

DIY roofing kits offer a cost-effective and accessible solution for homeowners looking to repair or replace their roofs. They provide pre-packaged materials and often include detailed instructions, simplifying the roofing process and making it manageable for individuals with some DIY experience. This approach can significantly reduce labor costs compared to hiring professional roofers, making it a financially attractive option, particularly for smaller roofing projects.

The advantages of using DIY roofing kits extend beyond cost savings. They offer homeowners greater control over the project timeline and the ability to choose materials that best suit their needs and budget. This increased control also allows for personalized choices in terms of style and color, enhancing the aesthetic appeal of the home. However, it’s crucial to assess one’s skill level and comfort with heights before undertaking such a project.

Types of Roofing Materials in DIY Kits

DIY roofing kits typically utilize a variety of common roofing materials. The choice of material depends on factors such as budget, climate, and the style of the home. Understanding the properties of each material is essential for making an informed decision.

Asphalt Shingles: These are the most popular choice for DIY roofing kits due to their affordability, ease of installation, and wide availability. Asphalt shingles come in various styles and colors, offering flexibility in design. They are relatively lightweight, making them easier to handle during installation.
Metal Roofing Panels: Metal roofing, often made from aluminum or steel, is known for its durability and longevity. While generally more expensive than asphalt shingles, metal roofing panels offer superior weather resistance and can significantly increase a home’s value. DIY kits for metal roofing often involve interlocking panels for straightforward installation.
Rubber Roofing Membranes: Rubber roofing, such as EPDM (ethylene propylene diene monomer) rubber, is a popular choice for flat roofs. These membranes are durable, waterproof, and relatively easy to install, making them suitable for DIY projects. They are often available in kits with pre-cut pieces and adhesive for simplified installation.

Tools and Equipment Needed for DIY Roofing Installation

Successful DIY roofing projects require the right tools and equipment. Having these items readily available will ensure a smoother and safer installation process. It’s crucial to prioritize safety throughout the entire process, including the use of appropriate safety gear.

Safety Equipment: This includes a safety harness, hard hat, work gloves, and safety glasses. Working at heights requires meticulous attention to safety protocols.
Measuring Tools: Accurate measurements are critical for proper material cutting and placement. A measuring tape, level, and chalk line are essential.
Cutting Tools: Depending on the roofing material, you may need a utility knife, tin snips, or a circular saw. Always use appropriate safety precautions when operating power tools.
Lifting and Handling Equipment: Roofing materials can be heavy, so having assistance and appropriate lifting equipment, such as a roofer’s hoist or scaffolding, is highly recommended.
Fasteners and Sealants: The appropriate fasteners (nails, screws) and sealants are crucial for securing the roofing materials and preventing leaks. Choosing high-quality materials is essential for long-term durability.

Affordability Comparison of DIY Roofing Kits

Choosing a DIY roofing kit involves careful consideration of cost. While the upfront investment might seem significant, the potential savings compared to hiring a professional roofing contractor can be substantial. This section explores the price variations among different DIY roofing kits and offers strategies to minimize expenses.

The price of DIY roofing kits varies significantly depending on several factors: the size of the roof, the type of roofing material (asphalt shingles, metal, etc.), the brand, and the kit’s completeness (some kits include only the roofing materials, while others offer additional tools and accessories). Generally, asphalt shingle kits are the most affordable option, followed by metal roofing kits, which tend to be more expensive due to material costs and potentially more complex installation. The price per square foot also fluctuates with market conditions and the supplier.

Cost Comparison of Different Roofing Kit Options

To illustrate the price differences, let’s examine a hypothetical comparison. Note that these prices are estimates and may vary based on location, retailer, and the specific kit features. Actual pricing should be confirmed directly with suppliers.

Brand	Material	Price per Square Foot	Installation Difficulty
Roofing Solutions Inc.	Asphalt Shingles	$2.50 – $3.50	Easy
EasyRoof Kits	Asphalt Shingles	$3.00 – $4.00	Medium
MetalMaster Roofing	Metal (Galvanized Steel)	$5.00 – $7.00	Medium-Hard
Premium Roofing Systems	Asphalt Shingles (Premium Grade)	$4.00 – $5.50	Easy

Cost-Saving Tips for Purchasing Roofing Materials

Several strategies can help reduce the overall cost of a DIY roofing project.

Buying in bulk often leads to significant discounts. Many suppliers offer price breaks for larger orders. Consider purchasing more materials than initially estimated to account for potential waste or damage during installation. Comparing prices from multiple suppliers is crucial to finding the best deals. Online retailers and local building supply stores often have competitive pricing, and it’s beneficial to compare both.

Look for sales and discounts. Building material suppliers frequently offer seasonal promotions or clearance sales, especially on older stock or discontinued items. Checking for coupons or rebates can further reduce costs. Finally, consider purchasing used or salvaged materials if they are in good condition and meet your project requirements. This can dramatically lower the expense, though thorough inspection is essential to ensure quality and suitability.

Ease of Installation

Installing a DIY roofing kit can seem daunting, but with careful planning and adherence to the manufacturer’s instructions, it’s a manageable project for many homeowners. This section provides a step-by-step guide to simplify the process and address potential challenges. Remember to always prioritize safety and consult professional advice if you encounter significant difficulties.

DIY roofing kits typically include pre-cut components designed for straightforward assembly. This reduces the need for extensive on-site cutting and measuring, simplifying the installation process. However, proper preparation and attention to detail are crucial for a successful and long-lasting roof.

Step-by-Step Installation Guide

The following steps provide a general overview. Specific instructions will vary depending on the chosen kit and roofing type. Always refer to your kit’s detailed manual for precise guidance.

Preparation: Clear the work area of any obstructions. Ensure you have all necessary tools, including a hammer, safety glasses, measuring tape, and possibly a ladder and roofing nails specific to your kit’s material. Check local building codes and obtain necessary permits if required.
Underlayment Installation: This waterproof membrane protects the roof deck from moisture. Carefully lay the underlayment, overlapping edges according to the manufacturer’s instructions, securing it with staples or roofing nails.
Installing the Roofing Panels: Begin at the lowest point of the roof, working your way upwards. Secure each panel using the provided fasteners, ensuring proper alignment and overlap. Maintain consistent spacing and avoid over-driving nails, which can damage the panels.
Flashing Installation: Install flashing around chimneys, vents, and other roof penetrations to prevent water leakage. Proper flashing is critical for a waterproof roof.
Ridge Cap Installation: The ridge cap covers the highest point of the roof, protecting it from the elements. Secure the ridge cap pieces according to the kit’s instructions, ensuring a tight seal.
Final Inspection: Carefully inspect the entire roof for any gaps, loose panels, or damaged areas. Address any issues before moving on.

Common Installation Challenges and Solutions

While DIY roofing kits are designed for ease of installation, certain challenges may arise. Understanding these potential problems and their solutions can prevent significant setbacks.

Difficult-to-Reach Areas: Working on a steep or high roof can be dangerous. Use appropriate safety equipment, such as harnesses and safety lines, and consider scaffolding or a professional lift if necessary. For particularly challenging areas, consider breaking the job into smaller, more manageable sections.
Improper Panel Alignment: Inconsistent panel alignment can lead to leaks. Carefully measure and align each panel before securing it. Using a chalk line can aid in maintaining straight lines.
Nail Placement: Over-driving nails can damage the roofing panels. Use the correct size nails and drive them just deep enough to secure the panel without causing damage. Under-driving nails can lead to panels coming loose.
Weather Conditions: Avoid working in extreme weather conditions such as high winds or heavy rain. Adverse weather can compromise the installation and create safety hazards.

Visual Representation of Installation Process

Imagine the roof as a series of horizontal rows. The underlayment is laid first, acting as a protective layer. Then, the roofing panels are installed, starting from the bottom row and working upwards, each row overlapping the previous one like shingles. Flashing is carefully fitted around any protrusions, and the ridge cap completes the process at the roof’s peak. The entire process resembles a layered structure, with each component playing a vital role in the roof’s overall integrity and weather resistance. Think of it like building a layered cake, each layer carefully placed to create a strong and stable structure.

Material Durability and Longevity

Choosing a DIY roofing kit involves careful consideration of the materials’ lifespan and ability to withstand various weather conditions. The longevity of your roof directly impacts the cost-effectiveness of your project, so understanding the durability of different materials is crucial. This section will explore the lifespan and weather resistance of common roofing materials found in DIY kits.

The durability and longevity of roofing materials vary significantly depending on the material itself, the quality of the manufacturing process, and proper installation. Factors such as UV exposure, temperature fluctuations, and the frequency and intensity of precipitation all play a role in determining a roof’s lifespan. While some materials are naturally more resistant to these factors, proper maintenance can extend the life of any roofing material.

Asphalt Shingles: Durability and Weather Resistance

Asphalt shingles are a popular choice for DIY roofing projects due to their affordability and relatively easy installation. However, their lifespan is typically shorter than other roofing materials. Standard asphalt shingles generally last between 15 and 30 years, depending on the quality of the shingles and the climate. They offer moderate resistance to wind and rain, but heavy snow accumulation can cause damage, particularly if the roof has a low pitch. High-quality asphalt shingles with enhanced weather resistance features can extend their lifespan. For example, architectural shingles, with their thicker profile and interlocking design, provide better protection against wind uplift and water penetration. These can last up to 50 years.

Metal Roofing: Durability and Weather Resistance

Metal roofing, including aluminum, steel, and copper, offers exceptional durability and longevity. Metal roofs can last for 50 years or more, with some high-end copper roofs lasting well over a century. They are highly resistant to wind, rain, and snow, and are less susceptible to damage from hail and extreme temperature fluctuations. The high reflectivity of metal roofing also helps to reduce cooling costs. However, metal roofing can be more expensive than asphalt shingles, and requires more specialized tools and knowledge for installation.

Tile Roofing: Durability and Weather Resistance

Clay and concrete tiles are known for their exceptional durability and longevity. They can last for 50 to 100 years or more, making them a highly cost-effective choice in the long run. Tile roofs are extremely resistant to wind, rain, and snow, and can withstand extreme weather conditions. However, tile roofs are heavier than other roofing materials, requiring a stronger roof structure to support them. They are also generally more expensive and more challenging to install than asphalt shingles.

Long-lasting Roofing Materials Suitable for DIY Projects

While many long-lasting roofing materials require professional installation, some are suitable for DIY projects with the right tools, skills, and patience. Asphalt shingles with enhanced weather resistance features, such as architectural shingles, provide a balance of affordability, ease of installation, and reasonable longevity. For those seeking a longer-lasting option and willing to invest more time and effort, standing seam metal roofing panels can be a viable DIY project for experienced DIYers. However, it’s important to remember that improper installation can negate the benefits of any roofing material.

Choosing the Right Roofing Kit for Your Home

Selecting the appropriate DIY roofing kit requires careful consideration of several key factors to ensure a successful and long-lasting installation. Ignoring these factors could lead to problems ranging from improper fit to premature material failure. A methodical approach, taking into account your specific needs and circumstances, is crucial for a positive outcome.

Choosing the right roofing kit involves a multi-step process. This process helps homeowners assess their roofing needs and select a kit that matches their skills and resources. Careful planning prevents costly mistakes and ensures a successful project.

Roof Size, Pitch, and Climate Considerations

Accurate measurement of your roof’s dimensions is paramount. You’ll need to determine the total square footage of your roof to ensure you purchase enough roofing materials. The roof’s pitch (angle) also influences the type of kit you’ll need, as steeper pitches often require specialized materials and installation techniques. Your local climate plays a significant role in material selection; a kit designed for a harsh, snowy climate will differ substantially from one suited for a mild, sunny region. For example, a high-wind area might require heavier-duty shingles and reinforced underlayment. Consider also the potential for extreme temperatures, which can impact the longevity of certain roofing materials. A thorough assessment of these factors will guide your selection towards a compatible kit.

Decision-Making Flowchart for Roofing Kit Selection

The following flowchart Artikels the decision-making process:

1. Measure Roof: Determine the square footage and pitch of your roof.
2. Assess Climate: Consider prevailing weather conditions (snow, wind, rain, temperature extremes).
3. Determine Budget: Establish a realistic budget for the project, including materials, tools, and potential labor costs.
4. Skill Level: Evaluate your DIY experience and comfort level with roofing installation.
5. Kit Selection: Based on the above factors, research and select a roofing kit that meets your needs and budget. Consider material type (asphalt shingles, metal, etc.) and manufacturer reputation.
6. Verify Compatibility: Ensure the chosen kit is compatible with your roof’s dimensions, pitch, and local building codes.
7. Purchase Kit: Purchase the kit from a reputable supplier.
8. Installation: Follow the manufacturer’s instructions carefully during installation.

Importance of Local Building Codes and Regulations

Compliance with local building codes and regulations is essential. These codes dictate acceptable materials, installation methods, and safety standards. Failure to comply can result in fines, project rejection, or even liability issues in case of damage or accidents. Before beginning any work, contact your local building department to obtain necessary permits and review applicable codes. They can provide specific guidelines and requirements for your area, ensuring your project meets all legal and safety standards. This step might seem like an added hurdle, but it safeguards your investment and ensures the long-term safety and structural integrity of your home.

Safety Precautions During Installation

DIY roofing projects, while offering cost savings and a sense of accomplishment, inherently involve working at heights and handling potentially hazardous materials. Prioritizing safety is paramount to prevent accidents and ensure a successful project. Failing to take proper precautions can lead to serious injury or even fatality. This section details crucial safety measures to ensure a safe and efficient installation process.

Proper planning and preparation are essential for a safe DIY roofing installation. This includes a thorough understanding of the roofing kit’s instructions, a careful assessment of the work area, and the acquisition of all necessary safety equipment. Underestimating the risks involved can have severe consequences.

Working at Heights Safety

Working on a roof presents significant risks. Falls are a major concern, and the consequences can be catastrophic. To mitigate these risks, it’s crucial to use appropriate fall protection equipment and techniques. This includes the use of harnesses, anchored securely to a sturdy point on the roof, and the use of safety lines to prevent falls. Regular checks of equipment are also vital to ensure its continued functionality. Furthermore, always maintain three points of contact with the roof surface – two hands and one foot, or two feet and one hand – to prevent loss of balance.

Necessary Safety Equipment

A comprehensive safety kit is crucial for any roofing project. This includes, but is not limited to: a hard hat to protect against falling objects, safety glasses to shield eyes from debris, sturdy work gloves to protect hands from cuts and abrasions, and a fall arrest harness with a strong anchor point. Depending on the complexity of the project and the height involved, additional equipment such as a safety net or scaffolding may be necessary. Investing in high-quality equipment is an investment in your safety. Don’t compromise on quality or functionality.

Safe Handling of Materials

Roofing materials, such as shingles, can be heavy and awkward to handle. Proper lifting techniques should be employed to avoid strains and injuries. Avoid lifting excessively heavy loads alone; enlist help when necessary. Store materials safely and securely to prevent accidental falls or damage. Always be aware of your surroundings and avoid placing materials in areas where they could create a tripping hazard. Sharp objects should be handled with extreme care, and appropriate protective gear should always be worn.

Emergency Preparedness

Before starting any work, have a plan in place for emergencies. This includes having readily accessible first-aid supplies and knowing the contact information for emergency services. Inform someone of your plans and expected completion time, and check in regularly. If working alone, consider using a device with emergency communication capabilities. Being prepared for unforeseen circumstances is a critical element of safety.

Maintenance and Repair of DIY Roofing Kits

Proper maintenance is crucial for extending the lifespan of any roof, and DIY roofing kits are no exception. Regular inspections and timely repairs can prevent minor issues from escalating into costly replacements. By following a simple maintenance schedule and understanding common problems, you can ensure your DIY roof remains durable and protective for years to come.

Routine Maintenance Tasks

Regular inspections are the cornerstone of effective roof maintenance. These should be conducted at least twice a year, in spring and autumn, to check for any signs of wear and tear. During these inspections, pay close attention to the condition of the shingles, flashing, and seals around chimneys and vents. Look for missing or damaged shingles, cracks in the flashing, and any signs of leakage. Cleaning gutters and downspouts is also essential to prevent water damage. Debris buildup can obstruct water flow, leading to potential issues. Removing leaves, twigs, and other debris will ensure proper drainage and reduce the risk of water damage.

Identifying and Addressing Common Roofing Problems

Several common problems can affect DIY roofs. One common issue is shingle damage. This can be caused by high winds, hail, or simply age. Damaged shingles should be promptly replaced to prevent water infiltration. Cracked or missing flashing around chimneys, vents, and other roof penetrations can also lead to leaks. These areas should be carefully inspected and repaired or replaced as needed, using high-quality sealant. Another frequent issue is moss or algae growth, which can trap moisture and damage shingles. Regular cleaning with a suitable solution can prevent this. Finally, damaged or clogged gutters can cause significant problems. Regular cleaning and inspection can help prevent water damage and ice dams in colder climates. Addressing these issues promptly will minimize potential damage and ensure the longevity of your roof.

Maintenance Schedule

A well-structured maintenance schedule is essential for proactive roof care. The following table Artikels recommended tasks and their frequency:

Task	Frequency
Visual inspection of roof for damaged shingles, flashing, etc.	Twice yearly (Spring & Autumn)
Cleaning gutters and downspouts	Twice yearly (Spring & Autumn)
Inspection of chimney flashing and sealant	Annually
Moss and algae removal (if necessary)	As needed
Repair of damaged shingles	As needed
Complete roof inspection by a professional	Every 5 years

Environmental Impact of DIY Roofing Kits

Choosing a DIY roofing kit involves more than just cost and ease of installation; it also has significant environmental implications. The materials used, their manufacturing processes, transportation, and eventual disposal all contribute to a product’s overall carbon footprint. Understanding these impacts allows for more informed and environmentally conscious decisions.

The environmental impact of different roofing materials varies considerably. Factors such as material sourcing, manufacturing energy consumption, transportation distances, and end-of-life recyclability all play crucial roles. Asphalt shingles, for example, are widely used due to their affordability, but their production relies heavily on petroleum, a non-renewable resource. Furthermore, their lifespan is relatively short, leading to more frequent replacements and increased waste. Conversely, metal roofing, often made from recycled aluminum or steel, boasts a much longer lifespan and higher recyclability rate, minimizing the environmental burden over its lifetime. Similarly, certain types of tile roofing, depending on the sourcing of materials and manufacturing processes, can offer a sustainable option with a long lifespan.

Material-Specific Environmental Impacts

The environmental impact of different roofing materials can be categorized and compared. Asphalt shingles have a high embodied energy due to petroleum reliance and manufacturing processes. Their relatively short lifespan contributes to higher landfill waste. Metal roofing, in contrast, typically has a lower embodied energy due to the use of recycled materials and its extended lifespan. However, the energy involved in the initial manufacturing process needs to be considered. Clay or concrete tiles are durable and long-lasting but require substantial energy for production and transportation, particularly if sourced from distant locations. Finally, sustainable options like recycled rubber shingles offer a lower environmental impact but may have limitations in terms of durability and availability.

Sustainability of Various Roofing Options

A comprehensive assessment of sustainability involves evaluating the entire lifecycle of the roofing material, from raw material extraction to disposal. Life cycle assessment (LCA) studies provide a framework for such comparisons. For example, a comparative LCA study might show that while the initial manufacturing of metal roofing requires more energy than asphalt shingles, its significantly longer lifespan results in a lower overall environmental impact over its operational lifetime. Similarly, the embodied carbon (the total greenhouse gas emissions associated with a product’s entire lifecycle) of different roofing materials can be compared to assess their contribution to climate change. Data from such studies are crucial for making informed choices.

Minimizing Environmental Impact During Installation and Disposal

Careful planning and execution during installation and disposal significantly reduce the environmental footprint of DIY roofing projects. Minimizing waste during installation by accurately measuring and cutting materials is essential. Proper disposal of construction debris through recycling programs or responsible waste management facilities reduces landfill burden. Choosing locally sourced materials can reduce transportation emissions. Furthermore, using environmentally friendly cleaning agents and disposing of them properly prevents water pollution. Finally, adhering to all local regulations concerning waste disposal is crucial.

Examples of Successful DIY Roofing Projects

Many homeowners successfully tackle DIY roofing projects, often achieving significant cost savings and a sense of accomplishment. These projects, while demanding, demonstrate that with careful planning, the right tools, and a commitment to safety, successful DIY roofing is achievable. The following examples illustrate the diverse challenges encountered and the valuable lessons learned.

The successful completion of a DIY roofing project hinges on thorough preparation, meticulous execution, and a willingness to learn from potential setbacks. These examples highlight the importance of realistic expectations, careful material selection, and adherence to safety protocols.

Small Gable Roof Repair with Asphalt Shingles

This project involved replacing a small section of damaged asphalt shingles on a gable roof. The homeowner, experienced with basic home repairs, meticulously matched the existing shingles and carefully removed and replaced the damaged area. They utilized scaffolding for safety and took extra care to ensure proper shingle overlap and sealing.

Summary: Successful repair of a small area of damaged asphalt shingles on a gable roof. The homeowner prioritized safety and precise shingle installation.
Key Takeaways: Proper shingle selection and installation are crucial for a weathertight repair. Scaffolding is essential for safety on even small projects. Meticulous attention to detail is key to a successful outcome.

Flat Roof Replacement with EPDM Rubber Membrane

This project involved a complete flat roof replacement using an EPDM rubber membrane. The homeowner, lacking prior roofing experience, meticulously followed the manufacturer’s instructions, carefully measuring and cutting the membrane. They used a specialized adhesive and ensured proper sealing around all edges and penetrations.

Summary: Complete flat roof replacement using an EPDM membrane by a homeowner with limited roofing experience. Success was achieved through careful planning and adherence to manufacturer’s instructions.
Key Takeaways: Thorough preparation and careful measurement are crucial for EPDM installation. Following manufacturer’s instructions precisely is paramount. Seeking assistance with complex aspects of the project is acceptable and can prevent costly mistakes.

Metal Roof Installation on a Shed

This project involved installing a standing seam metal roof on a small shed. The homeowner, with some experience in construction, carefully measured and cut the metal panels, ensuring proper overlap and securing them with appropriate fasteners. They used specialized tools for cutting and bending the metal and paid close attention to sealing around edges and vents.

Summary: Installation of a standing seam metal roof on a small shed. The homeowner’s prior construction experience proved valuable, but careful planning and attention to detail were equally crucial.
Key Takeaways: Specialized tools are necessary for metal roofing. Precise measurements and cuts are essential for a professional finish. Understanding the principles of metal roofing expansion and contraction is important to prevent issues.

Resources and Further Information

Completing a DIY roofing project successfully requires access to reliable resources and information. This section provides guidance on locating reputable suppliers, helpful online tools, and professional assistance when needed. Having the right resources at your disposal can significantly contribute to a smooth and efficient roofing installation.

Finding the right materials and guidance is crucial for a successful DIY roofing project. The following resources will assist you in locating quality products and expert advice.

Reputable Suppliers of DIY Roofing Kits

Choosing a reputable supplier is essential to ensure the quality and suitability of your roofing kit. Look for suppliers with a proven track record, positive customer reviews, and a clear warranty policy. Consider suppliers who offer a range of kits to suit different house styles and budgets. Many national home improvement retailers also offer roofing materials and kits. Checking online reviews and comparing prices from multiple suppliers is recommended before making a purchase.

Helpful Online Resources

The internet offers a wealth of information on DIY roofing projects. Websites dedicated to home improvement and construction provide valuable step-by-step guides, instructional videos, and expert advice. Online forums and communities dedicated to DIY projects offer a platform to ask questions, share experiences, and learn from others who have undertaken similar projects. Searching for terms like “DIY roofing installation guide” or “roofing kit reviews” can yield numerous helpful results. Remember to always cross-reference information from multiple sources to ensure accuracy.

Sources of Professional Advice

While DIY roofing kits are designed for self-installation, it’s advisable to seek professional help for complex aspects of the project. Local roofing contractors can offer advice on choosing the right kit for your specific needs, provide guidance on challenging installation steps, and conduct inspections to ensure the roof’s structural integrity. Many contractors offer free consultations, allowing you to discuss your project and receive expert feedback before committing to the installation. Additionally, building supply stores often employ knowledgeable staff who can answer specific questions about materials and installation techniques.

Essential FAQs

What is the warranty on most DIY roofing kits?

Warranties vary greatly depending on the manufacturer and the specific materials used. Always check the manufacturer’s specifications for detailed warranty information.

Can I install a DIY roofing kit on any type of roof?

No, the suitability of a DIY roofing kit depends on your roof’s existing structure, pitch, and size. Some kits are designed for specific roof types. Consult the kit’s instructions and, if unsure, seek professional advice.

How long does it typically take to install a DIY roofing kit?

Installation time depends on the roof size, complexity, and your experience level. Expect the process to take several days, potentially longer for larger or more challenging roofs.

What happens if I damage my existing roof during installation?

Carefully follow the installation instructions and take necessary precautions. If you damage your existing roof, you may need to call a professional roofer for repairs, which could negate the cost savings of a DIY project.