Metal Roofing : Installation & Repair
Metal roofing offers impressive durability and longevity and contributes to a greener, more energy-efficient property. Metal roofing is a solution that provides property owners with an eco-friendly alternative to TPO, PVC, and other types of roofing systems. This article will explore all aspects of metal roofing systems, repairing and installing them on Atlanta properties, their benefits and disadvantages, and how they compare to other roofing systems.
Popular Metal Roof Materials
With several options, choosing the best type of metal material involves weighing the costs, durability properties, and visual appeal.
1. Steel – steel is both durable and affordable, which makes it a popular material for metal systems. Galvanized, galvalume, and weathering steel are the most common versions of this popular metal.
2. Aluminum – aluminum is a step up from steel due to its unique properties. Aluminum is both lightweight and durable, and the beneficial property that coastal property owners rave about is its corrosion resistance – which the salt intensifies in metals.
3. Copper – copper has a high-end aesthetic, excellent insulation properties, and even greater durability than steel and aluminum. The investment in a copper roof is costly; as a result, its signature brown shade is most often seen on luxury properties.
4. Zinc – zinc comes at a premium price, as this type of metal roof can last 100 years. Like aluminum, zinc is resistant to corrosion, and this, along with its extended lifespan, makes zinc great for a select few who desire a top-of-the-line metal roof that requires minimal upkeep.
Metal Roofing Systems
There are various metal roofing systems and materials. Above, we covered the more popular types of metal roofing materials – steel, aluminum, copper, and zinc. Below, we will highlight the more popular metal roof systems and their properties.
1. Standing Seam Metal Roofs – The standing seam metal roof is a popular option for property owners who want a sleek, modern appearance. The standing seam roof features wide, flat, vertical panels with concealed fasteners, creating a streamlined and uniform look. They are usually crafted from steel, aluminum, or copper, standing seam roofs offer minimal maintenance and a more pleasing appearance than the typical corrugated metal roof system.
2. Corrugated Metal Roofs – The corrugated metal roof fits your traditional metal roof appearance, with a pattern of ridges and grooves. Typically made from aluminum, copper, or steel, a corrugated metal roof is known for its longevity, durability, and cost-effectiveness. These systems are effective, just less design-focused and more cost-conscious.
3. Metal Panels – Metal panels are representative of their name, and this aesthetically sleek metal system comes in varied designs. Metal panels are a fabulous choice for property owners who are seeking versatility and a bevy of design options. Metal panels suit most architectural styles as they are available in shingle, slate, tile, and shake roof styles.
Metal Roof Leak Repair
At some point over time, the metal roof on your Atlanta property will require maintenance and repairs to stop leaks or extend its life. There are common issues that we see when repairing metal roofs in Atlanta, and here are the primary sources of water leaks and metal roof problems:
Fasteners – Metal roofs often experience leaks when screws and fasteners wear out, back out, or sustain damage. The challenge lies in the labor-intensive nature of inspecting each screw for potential issues. Detecting a cracked fastener or a screw backed out by a mere 0.01 inches proves to be a difficult task.
Seams – The cohesion of metal panels creates seams, critical areas that require sealing to prevent water intrusion. Over time, these seams can become vulnerable points of failure, leading to leaks. Many metal roof repairs involve addressing and waterproofing seams that have come apart, ensuring the roof’s continued protection.
Flashing – Metal roof flashing, responsible for directing water away from vulnerable areas, can encounter problems over time. Exposure to harsh weather conditions may lead to deterioration or misalignment of flashing, compromising effectiveness. Regular inspections and prompt repairs are crucial to maintain the integrity of the flashing and prevent water-related issues.
Corrosion/Rust – Corrosion and rust pose significant challenges to metal roofs, especially in environments with high moisture or salt exposure. Over time, untreated corrosion can compromise the roof’s structural integrity, leading to leaks and other issues. Periodic inspections and proactive treatment are essential to address and prevent corrosion-related problems.
Sealant – The sealant used in metal roofing systems is vital for preventing water infiltration. However, sealants can degrade, crack, or lose their effectiveness over time, leaving the roof vulnerable to leaks. Regular assessment of sealant condition and timely reapplication are vital to ensuring the continued water-resistant properties of the roof.
Installation – Improper installation is a common source of metal roof issues, ranging from structural problems to aesthetic concerns. Issues such as misaligned panels, inadequate fastening, or improper slope can lead to water pooling, leaks, and reduced overall performance. Seeking professional assistance to rectify installation errors is essential for preventing long-term complications.
Panel Damage – Metal roof panels may experience bending or coiling issues, especially in areas prone to extreme weather conditions. Damage to the panel’s integrity can compromise the roof’s ability to provide adequate protection. Regular inspections to promptly identify and address panel damage are crucial for maintaining the structural integrity and longevity of the metal roofing system.
Metal Roofing Installation & Replacement Contractors
When performing metal roof replacement and installation in Atlanta, you must consider the property location, roof pitch, manufacturer guidelines, and local building codes. Once these factors are considered, here are the basic steps to prepare, replace, and install a corrugated or metal panel roofing system:
- Measure and order the roof: measure the length and width to determine the accurate amount of metal roofing, underlayment, and trim you need. Consider larger sheets that create fewer seems. Seams are typically where future leaks occur, and the aesthetic is more appealing with limited seams.
- Prepare the roof: remove the old roofing system and its materials. Repair any damage to the substrate, plywood, or decking.
- Install the underlayment: underlayment is the first layer of the metal roofing system that goes on top of the plywood or OSB roof deck. Pay careful attention to keeping it flat and wrinkle-free when you lay it down.
- Install eave trim: install your eave trim to the fascia tightly. Then, using roofing nails, fasten the trim to the roof deck over the underlayment.
- Install metal panels: A reference line will be important for installing your roofing panels squarely and evenly. Starting from the bottom of the roof and working your way up, install the metal panels using the proper screws and sealant. Driving the screw flat and being sure not to over-or-under-tighten is important to ensure proper fastening and a watertight roof.
- Install sidewall flashing: overlapping the eave trim and gable trim, install your sidewall flashing along the roof edge.
- Install gable trim: using roofing nails, install the gable trim over the eave trim. Note here that you want to overlap the edge of the metal roof panels with this trim.
- Install ridge cap: using butyl tape, closure strips, and sealant, along the top of the roof peak, you will place the ridge cap then fasten it to the roof deck using roofing screws.
- Install vent boots: properly install vent boots over any vents.
- 10.Finish the roof: ensure all panels and trim are correctly fastened, secured, and sealed. Remove any screws, metal shavings, debris, and enjoy your new roof!.
