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What Is a Roofer?

Roofer Lancaster PA is a contractor who repairs and installs roofing systems. He or she may also repair or replace other structures, such as walls, chimneys and siding.

Like other carpentry careers, roofers need occupationally relevant education and experience. They can acquire this through a college course, an apprenticeship or on the job training.

Roofers professionally build, inspect, repair or replace roofs for homes or businesses. They may work as part of a construction team or independently with a crew. They also collaborate with customers to help them choose roofing materials and complete jobs on time and within budget. Depending on the jurisdiction, they must follow building codes and safety procedures. Roofers use hand tools, power tools and mechanical equipment.

The typical work week for a roofer or shingler is 40 hours, though peak seasons require overtime. They frequently work outdoors and with a crew of other construction professionals, and must be able to perform physical labor for extended periods on ladders or scaffolding. They must also lift heavy materials, and can sometimes be exposed to extreme weather conditions.

While most roofers are self-employed contractors, others work for construction companies or as members of unions. Those who are affiliated with a union often advance to supervisory positions or apprenticeship instructor roles. Those with experience in the trade may start their own roofing company or join the management ranks of their employer.

A well-written job description is a powerful recruitment tool that helps to attract quality candidates and deter unqualified ones. It is important to write the description in a clear, concise manner to avoid confusing or intimidating job seekers. Using action verbs, such as install, remove and repair, can also help to increase reader engagement.

Roofers are required to wear protective clothing and safety gear while working on the roof, including hard hats and eye protection. They are also required to follow occupational health and safety regulations set by their employers. In some countries, workers are required to attend training on a yearly basis.

Collaborating with other construction professionals is an essential component of a roofer’s job duties, and they must be able to follow instructions given by their supervisors or managers. They frequently use power tools, so it is essential that they have excellent manual dexterity. They may also be required to stand on ladders or scaffolding for extended periods of time, and must be able to tolerate the heat of the sun while working outside. They are also required to clean their equipment and the area around their work sites.

Roofers are responsible for installing, repairing and maintaining roofs on homes and buildings. This is a challenging job that requires both skill and physical strength. This occupation can be very satisfying for the right person as it provides a stable and lucrative career path. To be a Roofer, a high school diploma or equivalent is needed and the candidate must be able to work at heights for extended periods of time. There are several ways that an individual can become a Roofer, including going to trade school and participating in an apprenticeship, or by earning a construction degree or certification.

Most Roofers receive on-the-job training to become proficient in the occupation. During this program, experienced roofers teach new workers how to use roofing tools, equipment and machines. They also show them how to build and erect scaffolds and hoists. Trainees start out by carrying equipment and materials, then move on to laying a few rows of asphalt or fiberglass shingles. They may also learn how to identify the different types of roofing materials and how to construct different styles of roofs, such as flat or sloped.

Those who choose to go to trade school or college can receive the necessary education through programs like certificate or Associate’s degrees in construction. These types of degrees can provide a strong educational background in both math and physics, which is important to the success of any Roofer. These programs usually take two to three years to complete, and they may include internships or other hands-on opportunities with real-world roofing projects.

The process of obtaining these licenses can vary, but they usually include completing pre-licensing training for either construction contractors or residential specialties, passing the associated examination, and providing proof of insurance.

It is also important for a Roofer to follow safety guidelines when working on a project. This can help prevent injuries or even fatalities on the job. This is especially true when dealing with dangerous roofing materials, like asbestos. It is important that any worker who is preparing to handle hazardous materials first takes a Hazard Awareness course, which is often offered free of charge by local community colleges or other organizations.

Roofers work outdoors in varying weather conditions and often work overtime. They are required to perform a series of physical tasks, including climbing ladders and reaching to different heights with tools. They must be able to lift up to 50 pounds on a regular basis. They must also be able to load and unload material and equipment on vehicles from variant heights. Depending on the type of roof, a roofer may be required to wear protective clothing or equipment.

As the demand for roofers increases, so will the need to construct new buildings and houses. Roofers can also expect to work on the installation of green roofs which help reduce energy consumption by reflecting sunlight rather than absorbing it and cutting down air conditioning costs.

If you are good with your hands, agile and physically fit, and have a bit of a daredevil in you, becoming a roofer may be the perfect career for you. There are many responsibilities that come with this job though, so it is important to carefully consider whether it really is what you want to do for the rest of your life.

Most unionized roofing workers receive health, dental and vision insurance, as well as paid time off, holidays and retirement savings plans. Individuals who are self-employed must provide for their own benefits. In addition, because of the demands on the body, roofers must be able to maintain a high level of physical fitness and superb hand-eye coordination.

A good roofer should be able to recognize and diagnose problems with a roof, as well as know the best course of action to take for repair or replacement. They should also be comfortable working with a variety of materials including wood, asphalt, tar, caulk and sheet metal as well as be able to estimate the precise amount of material needed for each job.

According to the Freedonia Group, employment opportunities for roofers will be relatively steady through 2026. This is because reroofing and replacement of existing roofs is less affected by the economy than new construction. Also, as the housing market continues to recover from its slump, the need for new roofing will continue to increase. However, employment in this occupation will be offset by declines in other construction trades, such as carpenters and electricians.

Roofing professionals can help find the perfect aesthetic for any property by consulting with the client and exploring their options. It’s helpful to look for inspiration from the surroundings and identify which features stand out. For example, if trees and other natural landscapes surround the home, a more earthy color scheme can blend in and complement the surrounding environment. Conversely, a more contrasting shingle hue can create a dramatic, eye-catching statement if the house is a modern, contemporary home with bold colors and sleek shapes.

Other design elements like skylights, dormers, and chimneys also play a role in the overall aesthetic of a roofing system. These additions can provide character and charm and break up large roof surfaces, creating a well-designed exterior for the entire building. Additionally, roofing materials can be laid in various patterns, including herringbone, and staggered to add visual interest.

Aesthetics are important for roofing because they make a lasting impression on visitors and passersby. A beautiful roof conveys a sense of quality and attention to detail, an important message for homeowners and business owners alike. Furthermore, an attractive roof can increase the value of a building and encourage people to take pride in their property. It’s also a great way to attract potential customers and tenants.

The Basics of Roof Installation and Repair

A roof is a home’s first defense against sunlight, rain, wind, hail, and snow. A quality roof can protect your property for years.

RoofX vary in design and materials. Choosing the right one depends on your lifestyle and budget. A few factors to consider include:

A quality roofing material protects a home or business and enhances the aesthetics of an architectural design. There are several types of roofing materials, and roofing contractors can help homeowners pick the best one for their climate, local regulations, and budget.

Metal roofs are typically made from galvanized aluminum, copper, or other metal alloys and come in various colors. They are durable, fire-resistant, and energy-efficient, lasting 50 years or more. Slate is another popular roofing material and can withstand heavy rainfall, hail, high winds, and other weather events. However, it is expensive and requires regular maintenance.

Wood roofing is an aesthetically appealing option that can increase the value of your property. The two most common wood roofing materials are shingles and shakes. Shingles are sawmilled to be uniform in length, width, and thickness, while shakes are thicker wedges of wood split by hand. Cedar and redwood are the most commonly used woods for shingle roofing.

Rolled roofing is an inexpensive option that works well on low-slope roofs but has a short lifespan. It comprises large rolls of asphalt materials topped with mineral granules and is unsuitable for flat roofs.

Membrane roofing is a watertight system that comes in a variety of waterproof materials, including rubber EPDM (ethylene propylene diene monomer), PVC (polyvinyl chloride), and Neoprene (synthetic rubber). These membranes are designed to minimize seams in large areas of the roof. Some are also fire-resistant and can withstand structural movement and extreme temperature fluctuations.

Other types of roofing include clay tiles, a popular choice in warm climates, and concrete tiles. They provide homes with a unique, layered look and withstand heavy rains, high winds, salty air, and other extreme weather conditions. However, these roofs are heavier than other options and may require additional support to prevent damage.

Other roof coverings include single-membrane systems, suitable for flat or low-sloped roofs, and insulation. Depending on the type of insulation, it can improve a roof’s thermal efficiency and reduce its cooling and heating costs. Hiring a roofing contractor with experience installing various roofing materials is important.

The roof installation is a complex process that requires specialized skills and knowledge of safety protocols to ensure the new roofing system will provide adequate protection for the building. A professional roofing contractor will perform the installation, typically removing existing shingles and installing an underlayment material before applying a new layer.

The shingles are then installed in rows, with the first row nailed close to the edge of the underlayment and the subsequent rows nailed further out. The shingles are nailed so they overlap each other, creating a watertight seal.

After the shingles are installed, the cleanup and restoration process begins. This includes hauling debris away, cleaning up installation leftovers, and ensuring the property is safe and restored to its pre-roofing condition.

The roof is typically the most exposed part of a building. It gets assaulted by rain, snow, wind, ice, extreme temperatures, and sunlight. As such, it is common to deteriorate over time, necessitating periodic maintenance and sometimes even replacement. A roof is also a complex structure that can take on various forms: pitched, vaulted, domed, or combinations thereof. Typically, roofs are constructed from a wide range of materials, including shingles, bitumen, and metal. A tradesperson specializing in roof construction is known as a roofer or roof mechanic.

Performing simple maintenance can extend the life of a roof. This includes:

  • Regularly inspecting the roof for deterioration or damage.
  • Handling repairs promptly.
  • Keeping walkways clear of debris.

Another important maintenance task is to trim tree branches so they don’t overhang the roof. Finally, homeowners should inspect the flashings around skylights, vents, and chimneys for cracks or other signs of wear and ensure they are properly sealed. The same care should be taken with these components as the main roofing materials.

Your roof plays a major role in the stability of your home. It protects the structural integrity of your building and provides a buffer against extreme weather conditions such as rain, wind, hail, and snow. Therefore, any damage to your roof should be addressed immediately to prevent it from causing serious problems, such as leaks or weakened spots that can lead to structural damage. Regular maintenance and timely repairs can help you avoid the need for costly reroofing.

Besides repairing leaks and repairing damaged shingles, roofing contractors can also add insulation to your roof. This improves energy efficiency by preventing conditioned air from escaping your house and outside air from infiltrating it. This results in lower utility bills and a more sustainable living environment.

Flashing is made of metal that’s (often) hand-bent to fit the application and then fixed to your roof with a combination of nails and sealant. Repairing flashing is simple: unstick it from the shingle, remove the nail or sealant, and re-bend it.

A roof replacement is a major home improvement project involving many different elements. It’s not as easy as slapping on a coat of paint, and the right contractor makes a huge difference. The best way to find a good roofing contractor is by asking for recommendations and evaluating their track record. A reputable roofer will work with you to find the best roof for your needs and budget. A roofing contractor will also be able to answer any questions you may have about the process and what to expect.

If you need to decide whether you should reroof or replace your roof, here are some of the pros and cons of each option. Reroofing is the cheaper and simpler option, but it won’t last as long as a replacement. This is because reroofing only covers the existing roof and doesn’t address any other damage or deterioration.

Before starting your reroofing project, you should clear the attic and remove items that could get damaged during the process. It would help if you also moved any outdoor objects like potted plants, ceramic landscaping, and anything that could get broken by falling debris. Also, it would help if you pruned any trees that might infringe on your roof.

Next, you’ll need to choose the roofing material for your home. Many choices include asphalt shingles, metal sheets, clay tiles, and wood shakes. It would help if you considered the climate in your region and the aesthetics of your home when making a decision. The type of roof you select will also depend on the pitch of your roof, as some materials don’t work well with low pitches. It would help if you also considered the cost of materials and any restrictions on your choice imposed by your homeowner’s association or architectural review board.

Just as you change the oil in your car or brush and floss your teeth, you need regular maintenance on your roof to ensure it lasts. Roofing repair and maintenance procedures include cleaning gutters and drains to ensure water doesn’t back up and get under the shingles. The fascia and soffit should be checked for cracks, rotting, and insect and animal damage. These areas can allow moisture and invasive animals into your attic, which can severely damage or shorten the life of the shingles below them.

The eaves should be caulked and flashing installed where needed. This includes chimneys, wood stove pipes, certain vents, and hip roofs. Adding new vent holes and vents to increase attic ventilation is also recommended during roof replacement.

Another repair option is reroofing, which involves laying a second layer of shingles on top of the existing ones. This is a good repair choice for homeowners who want to spend less money on a roof replacement or need more time to do a full replacement. However, it is less durable than a full replacement and can leave the roof exposed to leaks because the new shingles may not lay flat over the original shingles.

It is important to remember that roof replacement is a major home improvement project. If items are stored in your attic, clearing them out during roofing is best. This will protect them from dust and debris during the roof replacement and make cleanup easier. It is also good to put down tarps or painter’s drop sheets to protect the attic from water staining, mold, and mildew during the roof replacement.

Different Types of Roofing

A roof protects a building from rain, snow, sunlight, and extreme temperatures. It is a complex structure that requires the efforts of trained roofing professionals to make and repair.

Choosing the right roofing material is important to determine longevity, warranties, and aesthetics. Your roofing contractor will help you decide what’s best for your home. Contact Spring Valley Roofing today!

Clay and concrete roof tiles are a traditional roofing option that has been around for centuries. They have several benefits, including durability, energy efficiency, fire resistance, and low maintenance costs. They also add a distinct architectural style and elegance to the home. Whether building a new home or renovating a character property, these roof tiles offer a premium aesthetic ideal for any design.

Depending on the type of clay or concrete used, these tiles are molded into specific shapes and then baked to dry. Different minerals and chemicals can be added to create different types of tiles. The different materials can be mixed to create a range of colors and textures. The tiles can then be coated with a protective glaze to prevent water damage and other problems.

In addition to their aesthetic appeal, clay and concrete roof tiles are energy efficient. They are designed to let air flow through the roof, helping to regulate interior temperatures and prevent heat loss during colder weather. In addition, light-colored terra-cotta tiles help reflect sunlight and can help reduce cooling costs in the summer.

One downside to these tiles is that they tend to be heavier than other roofing options. This can increase the stress on the roof structure and require extra reinforcement. They are also more fragile in freezing temperatures and may crack or shatter if subjected to frequent freezing and thawing cycles. Concrete tiles are also susceptible to moisture damage, and the color pigmentation can fade. This can lead to a white stain on the roof called efflorescence. However, these issues can be mitigated with the proper installation by a professional.

Slate is a fine-grained, metamorphic rock that splits easily into thin slabs with great strength and durability. It’s a material that’s highly resistant to damage and requires little maintenance. It’s an enduring choice that will look beautiful on your home for years.

Slate was formed under low temperature and pressure conditions from mudstone or shale. It is classified as a metamorphic rock because it changed its original form into a new material through exposure to heat and pressure over long periods. The resulting slate has natural cleavage along planes that intersect at high angles.

The composition of the mineral components of a slate will determine its color. Hematite produces purple tones, chlorite gives the shingle its green hue, and carbon creates blacks and grays. It is also common for a slate to weather over decades, producing tones of buff and brown.

Once a slate is mined, it’s sent to a mill for inspection and refinement. It is then cut and fabricated into roofing tiles. Slates are available in various shapes, sizes, and colors, allowing homeowners to add individuality to their home’s exterior.

The installation process for slate is slightly more complex than that of asphalt shingles or metal roofs. It’s important to work with experienced professionals. A slate that is not properly installed can be damaged by storms, snow, or hail. It’s also essential to know the pitch of your roof before installing a slate. This will allow you to determine how much overlap is required between each slate. You’ll also need to use different fasteners for slates than those used with shingle or metal roofs.

Wood is one of the most commonly used roofing materials for its insulative properties and aesthetic appeal. It is also durable and can withstand heavy winds. Additionally, it is easy to work with and can be cut into complex shapes. It is a popular choice for framing and creating partitions in interior spaces due to its lightweight construction. Wood is also preferred for doors and windows, providing a natural look and good insulation.

Several kinds of wood are used for roofs, including fir, pine shakes, and cedar shingles. Each type has unique characteristics and benefits but is durable and aesthetically appealing. Cedar shakes are popular because they are naturally rot-resistant and look classic. However, they can be expensive to install and require yearly maintenance.

Regarding the rafters supporting roof sheathing, builders often choose plywood or oriented strand boards for their strength and cost-effectiveness. The two are similar in structural performance, but plywood is more common because its moisture-resistant coating prevents the wood from warping or rotting. Oriented strand boards are also more environmentally friendly, using faster-growing trees and producing less waste.

There are many grades of plywood, but the best for roofing is structural plywood with a PE (pressure-treated) or CDX designation. These types are more expensive, but they provide better performance and durability. Unlike general plywood, structural plywood has proof of strength, indicating it has passed building regulations.

Metal roofs are a popular choice among new construction and re-roofing homeowners. These panels are a durable and attractive alternative to shingle styles, offering several key benefits:

The average lifespan of a metal roof is twice that of an asphalt shingle. This impressive durability is a major draw for many and is often backed by a 50-year manufacturer’s warranty. This longevity, with its fire resistance and energy efficiency, makes metal a solid pick for those seeking a long-term investment in their home.

In addition to its durability, metal is versatile in design options. While many opt for the traditional vertical ribbed panels or standing seam style, they can also be manufactured to resemble wood shakes, slate, or clay tiles. These unique shingle options give homeowners a more traditional look without sacrificing the advantages of a metal roof.

Like other roofing materials, however, metal can suffer from natural wear and tear that may affect lifespan. The climate in which you live will also affect how long your metal roof will last. Areas with heavy snowfall and high-speed winds are likely to take a toll on your roof faster than those in more temperate regions.

Another potential drawback is that metal can be slippery when wet or covered in snow, making it a safety risk to walk on. This can be offset by regular preventative maintenance such as cleaning gutters, clearing debris from the roof, and replacing neoprene washers that degrade over time.

Rolled roofing is a cost-effective alternative to traditional roof materials like shingles or clay tiles. It can be used for various purposes, such as covering temporary structures and providing weather protection for low-incline roofs. It’s also ideal for non-occupied structures used mostly for storage or as a placeholder until the owners can afford a more permanent solution. Rolled roofs are often a do-it-yourself project, but it’s recommended to consult a professional roofing contractor for the best results.

The first step in installing a rolled roof is to prepare the roof surface. Ensure the area is clean and debris-free and that any existing roof materials are in good condition. Then, apply an underlayment to protect the underlying roof structure from moisture infiltration. Some underlayments are self-adhering, while others require an adhesive to secure them. After applying the underlayment, roll out the rolled roofing material. It’s usually installed across the entire roof and nailed down using roofing nails spaced 6 to 12 inches apart.

Once the rolls are in place, a sealant is applied to the seams for additional waterproofing. This step is important to prevent water leaks that can cause much damage in the short term. In the long run, it will save you money in maintenance and repair costs.

It’s important to regularly inspect your rolled roofing for signs of damage or wear. If you notice any issues, contact a roofing company for immediate repairs. It’s also a good idea to keep up with regular maintenance, like cleaning debris from the roof surface, removing excess snow buildup, and clearing gutters to avoid blockages.

The Importance of Roof Repair

Orange County Roofing Inc is crucial to the integrity of your home. Any unaddressed problems can result in water stains on the ceiling or mold growth.

A roof protects the structure of a building from rain, snow, sunlight, and extremes of temperature. Roof repair involves:

  • Replacing damaged or missing shingles and tiles.
  • Addressing leaks.
  • Addressing damage to the substrate.

Shingles are your roof’s outermost layer of protection. It’s crucial to fix them when they are damaged before moisture gets into the underlayer and causes serious damage. This can be a problem caused by weather conditions due to improper installation or normal wear and tear. If you see shingles missing chunks or significant gaps, these need to be replaced immediately. The gaping holes in your roof’s defenses will allow moisture to penetrate the underlayer and cause other problems.

Surface repairs are inexpensive and simple, such as replacing a single damaged or missing shingle. A knowledgeable do-it-yourselfer may be able to do this, but if you need experience with roof repair, it’s best to call in a professional.

A skilled roofer will be able to assess the extent of the damage, determine how many new shingles are needed and where they should be placed, and properly install them. They can also repair the flashing or thin metal pieces that line roof valleys and prevent leaks around features such as chimneys and skylights.

Start by loosening the nails and adhesive on a shingle directly above the damaged one. Slip a pry bar underneath the shingle and work it upwards until you can pull up the nail about 1/4 inch from the top. Repeat this process on the shingles above and below the damaged shingle to expose and remove all of the nails on the shingle.

Next, slide the pry bar under the first tab of the shingle above the damaged one and work it upwards to lift that shingle. Then, use the pry bar to loosen the nails on the shingle below that, and then remove it. Once the old shingles are removed, place a new 3-tab shingle. Use a tool belt to keep all your tools within easy reach and prevent them from falling onto the roof.

After completing the above steps, it’s a good idea to inspect your roof from ground level again to ensure no more shingles are missing or damaged. It’s also a good idea to take annual photos of your roof to spot potential problems before they develop. And remember: Always tie your ladder securely and have a spotter to support it at the base when climbing on the roof.

Leaks are among the most common problems that homeowners encounter with their roofs. Unless they are promptly repaired, leaks can cause serious water damage and even lead to structural issues in your home.

To stop a leak, you first need to find it. Look for wet spots on the ceiling or walls and trace them back to their source. Then, take a flashlight and head into the attic to shine it on the underside of your roof decking or insulation. If you can see where the leak is coming from, you can repair it with roofing cement and aluminum flashing.

Most leaks occur at the roof’s seams or around penetrations like vents, chimneys, and HVAC access panels. These areas are vulnerable to moisture and can be punctured by nails, screws, or debris. It’s important to inspect and re-seal these areas regularly.

Other common leak sources include valleys, ridges, and dormers. These areas can be particularly difficult to track down since water will usually travel along beams and rafters before reaching the interior of your home.

The most obvious signs of a leaky roof are water stains on the ceiling and walls. These can be accompanied by sagging, dampness, or mold growth. A constant stream of water can also cause wood floor beams and joists to rot or warp. In addition, carpeting, wallpaper, equipment stored in the attic, and furniture that is soaked regularly can become permanently damaged.

A good roof repair professional will use a high-quality roofing membrane and flashing to prevent leaks. A membrane can be applied directly to your existing shingle or covered by a layer of new shingles and rolled over with underlayment. Sometimes, a tarp can protect the area until the roof repair is completed temporarily.

If you suspect you have a leaky roof, call a roofing contractor as soon as possible. They will have the tools (ladder, scaffolding, fall protection) to reach difficult areas of your roof and perform a thorough inspection to locate and repair the problem.

A sagging roof can indicate serious problems that could cost a lot to repair. Roofers can easily fix an isolated sag in a single spot, but if the issue is widespread, it could mean that the roof’s structure has deteriorated or that a major leak needs to be addressed.

If you notice a sagging roof, it’s time to call a pro for an inspection and a repair estimate. A roof may sag for many reasons, including poor construction, age, and weather conditions. The best roofing company can assess the situation and advise homeowners on how to proceed with a repair.

One of the most common reasons for a sagging roof is a problem with the fascia. The longboards that run along the roof’s edge and support soffits and shingles can warp or crack over time. They can also be damaged by insects or water. In some cases, a fascia replacement is needed to prevent further damage to the roof and to protect the underlying boards.

The other common cause for a sagging roof is problems with the rafters. If a roof is very old or isn’t installed properly, the decking or rafters may need to be stronger to support heavy snow loads or rainwater. Over time, this can cause a noticeable sagging in the middle of the roof or even the entire house structure.

To fix this problem, a homeowner can use ice and water barriers to help keep the soffit and main roof joints leak-free. To do this, remove the shingles and slip a strip of adhesive ice and water barrier (available where roofing products are sold) under the soffit/main roof joint. The ice and water barrier should overlap another strip beneath it to the roof edge. This barrier must be thick and durable to prevent water from leaking through the underlayment.

If water is pooling in places where it shouldn’t be, or even if it’s just a few drips, you need to address the problem as soon as possible. If left unattended, a leaky roof can cause mold, rotted framing and sheathing, destroyed insulation, and water damage to walls, floors, and ceilings.

Leaks that aren’t repaired immediately can also be a fire hazard, potentially losing life and property. An influx of water can wreak havoc on electrical wiring, too. If water contacts the wires, it can short-circuit them and leave your house without power until the problem is resolved.

If you suspect a leak, the first thing to do is to put a large container under the area where the water is dripping. This will catch the water until you can get your roof fixed. You should also tarp the area to limit the water damage to your belongings in the home, such as carpeting and furniture.

Water stains on the ceiling are another sure sign of a leak in your roof. If the stains are dark in color and have a musty smell, that’s a bad sign. Mold will eventually start growing on moist surfaces and can cause health issues in the home and reduce your home’s value.

When the shingles are removed for roof repair, removing the step flashing is a good idea if it has become damaged. This piece of metal runs along the wall where it meets the roof and is used to channel water away from the roof-wall junction. It’s often integrated with each shingle course and lapped against the wall. If it’s corroded, you must replace the step flashing and install new shingles.

When replacing the flashing, make sure you use roofing cement to ensure it is sealed properly. You should also ensure that the nails that secure the flashing are not exposed. If they are, apply a layer of caulking around the nail heads to seal them as well. Nails that aren’t properly secured can puncture the new roof materials and allow water to enter.