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Top 9 Most Common Metal Roof Installation Mistakes to Avoid

Nov 14, 2023

Metal roofing has gained immense popularity in recent years for its sleek appearance and exceptional durability. However, with the increased demand for metal roofs, it's crucial to understand that improper metal roof installation can compromise your roof's lifespan and cause potential structural damage. This blog covers the top nine metal roof installation mistakes that are most common. Whether you choose to undertake the installation yourself or enlist a professional roof company, avoiding these common blunders is essential to prevent issues like leaks and premature wear and tear. 


What Are the Common Metal Roof Installation Mistakes?

Metal roof installation is a complex process that requires thorough planning, exact measurements, and strict adherence to manufacturer guidelines. We have explained some of the most common metal roof installation mistakes below:


Incorrectly Fastened Screws

Improperly installed fasteners are a common cause of metal roof leaks. To ensure a proper installation, fasteners should be screwed in with just the right amount of resistance, avoiding both under-tightening and over-tightening. If you notice that the washer is visibly off-center, it indicates that the fasteners have been tightened too much. Conversely, if the gaskets are not firmly compressed against the surface, it suggests that the fasteners have been under-tightened. 


Taking Inaccurate Measurements

Failing to measure the roof slope and length accurately is a common metal roof installation mistake. With a wide variety of thicknesses and shapes available, no two metal roof panels are the same. Therefore, before starting the metal roof installation process, review the designs closely and work with the manufacturer to understand how the size and shape of a metal panel can impact measurements. 


Using the Wrong Underlayment

One of the common metal roof installation mistakes is improper selection or skipping of underlayment. Using underlayment is imperative since it adds an additional layer of protection against condensation, which reduces the risk of damage. It is available in various brands and sizes to protect against home insulation and water leaks. Selecting the incorrect underlayment can also lead to the nullification of warranty coverage.


Improper Roof Plumbing

One common mistake in metal roof installation is neglecting the plumbing aspects. Many people tend to prioritize the selection and installation of metal roofing material while neglecting other essential components like downpipes, spouts, gutters, and the overall drainage system.

The consequences of neglecting these plumbing components can be quite significant. To avoid problems like leaks and corrosion, proper installation of the roof plumbing system is crucial.


Oil Canning Issue

Oil canning is the apparent rippling or waviness in the metal roofing's flat sections, which stands out as a common problem in metal roofing. It happens with different metals like steel, aluminum, copper, or zinc and is not related to the structural integrity of the building. The cause of oil canning could be inadequate space for the metal to naturally expand and contract, as materials do, or they could have exerted excessive pressure on the metal during the initial coiling process.


Not Using the Right Tools

Achieving a successful metal roof installation demands the use of specific tools and equipment to ensure a seamless process. Not using the right tools can result in delays, errors, and compromised results. Essential tools and equipment for the installation of a metal roof include a chalk line, measuring tape, a power drill, metal shears or snips, a roofing nail gun, and a metal brake. In addition, it's crucial to employ safety gear like gloves, goggles, and a harness to safeguard yourself during the installation. 


Using Incorrect Sealant

Sealants play a crucial role in safeguarding the integrity of a roof by preventing the infiltration of elements like water and dirt. When applied improperly, the roof becomes vulnerable to leaks. Moreover, it is essential to use sealant designed explicitly for metal roofing, as alternative caulking types may struggle to adhere to the paint coating on the panels. Additionally, the chosen sealant must be able to accommodate the expansion and movement of the metal without compromising its sealing capabilities.


Not Choosing a Qualified Roofer

Not hiring a qualified and experienced roof company can result in significant expenses and damage. For instance, if your roofer does not install metal roofing sheets and panels correctly, it can result in moisture, which will ultimately reduce the longevity of your roof. It is crucial to choose a trustworthy roofing contractor who is experienced in providing roof services to avoid metal roof installation mistakes.


Ignoring the Ventilation Requirements

Proper ventilation is a crucial aspect of any roofing system, including those made of metal. Neglecting the ventilation needs can result in various problems, such as excessive heat build-up, moisture accumulation, premature deterioration of the roof, increased energy costs, and compromised indoor air quality.


When you're in the process of installing a metal roof, it's essential to ensure that you have a sufficient ventilation system in place. This involves having both intake and exhaust vents to facilitate the flow of air and prevent condensation issues. To determine the specific ventilation requirements, consider factors like the roof's design, the size of the attic or crawl space, and the climate in your region. 


Tips for Successful Metal Roof Installation

Metal roofs can last for decades when installed correctly. By following certain tips, you can ensure a successful metal roof installation that provides protection for your home or business. Here are a few tips to consider:


  • Seek referrals while hiring a professional roof company.
  • Never try to handle the problem by yourself or without professional help.
  • Examine your warranty and understand when you have a genuine claim.
  • Do your research to avoid any roof installation mistakes.
  • Ask questions and learn about possible issues.
  • Don’t compromise the quality of the roof to save money.
  • Ensure proper ventilation under the roof to prevent moisture buildup.
  • Choose the roofing material according to the climate, like steel, aluminum or zinc.
  • Follow the manufacturer's installation instructions if you prefer DIY roofing.


Conclusion

Being aware of the top nine most common metal roof installation mistakes is crucial for the long-term performance and durability of your roofing system. By ensuring proper fastening of screws, underlayment, sealant application, and ventilation, you can prevent costly and extensive damage. Paying attention to these critical aspects of metal roof installation will not only enhance the lifespan of your roof but also contribute to a more energy-efficient environment. 


So, whether you're a homeowner or a businessman, adhering to the best practices in metal roof installation is key to a successful and trouble-free roofing project. If you need professional roof services, feel free to
contact us at Roof America, where we guarantee top-quality roofing solutions for both residential and commercial properties.

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Recognize the Need for Roof Replacement Understanding when is the right time to replace your roof plays a huge role in preserving your home's structural integrity and safety. Some key signs that indicate the necessity for a new roof are: Age of the Roof: Most roofs are designed to last between 20 and 30 years. If your roof is nearing or has gone beyond this age range, it could be time to think about replacing it. Missing or Damaged Shingles: Inspect your shingles for any signs of cracking curling or if they are completely missing. These issues can result in leaks and additional damage to your home. Leaks or Water Damage: Check your attic and ceilings for signs of water damage, such as stains, mold, or peeling paint. These can indicate that your roof is no longer effectively keeping out moisture. Sagging: This issue often points towards structural problems in a roof. It is important to address it immediately and prevent potential collapse. Granule Loss: If you find granules from your asphalt shingles in your gutters or on the ground, it's a sign that your roof is wearing out Explore Roofing Options Selecting the right roofing material is crucial in an area with diverse climate conditions. Different roof materials hold different advantages. For instance, asphalt shingles are popular for their affordability and variety, with a lifespan of 20-30 years. Metal roofing offers durability, energy efficiency, and a lifespan of up to 50 years, making it ideal for withstanding Georgia's heat and occasional severe weather. Clay and concrete tiles are perfect for homes with a Mediterranean flair, providing excellent heat resistance and lasting over 50 years. Slate roofing, although expensive, is valued for its natural beauty and longevity of 75 to 100 years. For a cost-effective alternative, synthetic roofing materials mimic natural materials and offer durability with a lifespan of 40 to 50 years. 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Specialized materials may need skilled installers, increasing labor costs. Removal of Old Roof: The cost involved in the removal and disposal of the old roof material can add to the total expense. Geographic Location: Prices can vary based on local labor rates, material availability, and regional weather conditions. Additional Features: Skylights, chimneys, and ventilation systems can increase the complexity and cost of the replacement. Set a Realistic Budget Account for Unexpected Costs: Set aside an additional 10-15% of the total estimate as a contingency fund to cover unforeseen issues like structural damage or extra materials. Get Multiple Quotes: Obtain quotes from reputable contractors to get a clear idea of the project's cost. Prioritize Quality: Invest in high-quality materials and skilled labor to ensure the longevity and performance of your new roof. Consider Financing Options: Explore financing options or payment plans if needed, but be cautious of high-interest debt. 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Home Improvement Loans: Consider a home improvement loan specifically designed for renovation projects, which may offer favorable terms. Insurance Claims: If your roof replacement is necessitated by damage that your homeowner's insurance covers, submit a claim to address the expenses. It's crucial to grasp the coverage and deductibles of your policy. Government Loans: Look into government-backed loans like FHA 203(k) loans, which are designed for home renovations and can be used for roof replacements. Payment Plans: Discuss a payment plan with your contractor, allowing you to spread out the cost over time. Conclusion In conclusion, budgeting for a residential roof replacement in Georgia is all about paying attention to the details – from the age of your roof to choosing the right materials and getting your finances in order. It's a big decision and can be an expensive one, but you don't have to go it alone. At Roof America, we're here to help you navigate the process with ease. 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