industrial grade titanium dioxide manufacturer
...
2025-08-16 01:42
2395
The price of Titanium Dioxide in Taiwan rose considerably throughout December 2018, reaching 3,750 USD per metric ton. The price in Taiwan is 10% higher than the average price in the previous month and 1% higher than the average price one year before. In contrast, Titanium Dioxide prices in India were flat during December 2018, and were decline when compared to the average price in the preceding yeara decline of 3% from the previous year’s price.
...
2025-08-16 00:44
2630
Environmental considerations are also paramount in the production and supply of titanium dioxide. Manufacturers and suppliers are increasingly adopting greener technologies and practices to reduce the environmental footprint associated with mining, refining, and transportation. Efforts include improving energy efficiency in the production processes, implementing waste recovery systems, and exploring alternative sources of titanium that minimize ecological disruption.
...
2025-08-16 00:30
1453
Overall, BLR-895 suppliers are an excellent choice for companies looking for reliable, high-quality suppliers. Their commitment to excellence, dedication to quality control, focus on innovation, and strong customer service make them a top choice for businesses in need of suppliers.
...
2025-08-16 00:30
170
5. Is EFSA banning titanium dioxide?
...
2025-08-16 00:29
135
...
2025-08-16 00:27
354
Titanium dioxide importers play a key role in the global supply chain of this essential material. Titanium dioxide is a white pigment that is commonly used in various industries, including paints, plastics, and cosmetics. Its high refractive index and opacity make it a popular choice for enhancing the opacity and brightness of products.
...
2025-08-16 00:10
727
How we’re exposed to an ingredient matters greatly in terms of our long-term health.
Research shows that inhaling titanium dioxide particles in significant quantities over time can cause adverse health outcomes. Unless you work in an industrial setting, inhaling substantial amounts of titanium dioxide is highly unlikely.
...
2025-08-16 00:04
878
1. Affordability One of the major selling points of 3% tab composition shingles is their cost-effectiveness. Compared to other roofing materials, such as metal or tile, asphalt shingles provide a more budget-friendly option while still offering reliable protection for your home.
3 tab composition shingles

3. Variety of Colors These shingles are available in numerous colors and styles, allowing homeowners to choose a look that complements their home. Whether aiming for a classic look or a more modern appearance, 3-tab shingles can be tailored to match any exterior design.
Making an Informed Choice
In residential applications, clay tiles are commonly used for flooring, backsplashes, and decorative accents. Their natural earth tones add warmth and character to spaces, while their durability ensures they can withstand wear and tear. In commercial settings, clay tiles offer practical benefits as well; they are fire-resistant and easy to clean, making them ideal for high-traffic areas like restaurants and retail spaces.
tiles clay

If you are considering flat roof tiles for your roofing project, there are numerous options available to suit your needs. From cost-effectiveness to aesthetic appeal, flat roof tiles offer a range of benefits that can enhance the functionality and appearance of your home or business. Remember to consider installation and maintenance requirements to ensure your investment lasts for years to come. With the right choice of materials and proper care, flat roof tiles can provide a durable and stylish roofing solution.
3. Improved Aesthetic Appeal Missing or faded granules can detract from the overall appearance of your home. Replacing them can enhance curb appeal and maintain the market value of your property.
On average, the price of rosemary clay tiles can range from $3 to $10 per square foot, although custom orders or specialty tiles can push the price higher. Homeowners should also consider the cost of installation, which can add an extra $2 to $6 per square foot, depending on the complexity of the job and local labor rates.
2. Ceramic Tiles
For homeowners facing high upfront costs, financing options may be available. Many roofing contractors offer payment plans or financing through third-party companies. Additionally, homeowners may choose to invest in upgraded materials or features, such as enhanced warranties or energy-efficient shingles, which can impact the overall budget.
The Importance of Professional Installation
The Importance of Asphalt Shingle Maintenance
- - Heavy weight requires reinforced roofing structure
6. Customer Service Good communication is key to a successful roofing project. Opt for a company that values customer service and is willing to listen to your concerns. A responsive contractor will keep you informed throughout the process, making you feel confident and comfortable with your investment.
Durability and Longevity
While asphalt fiberglass shingles present numerous benefits, there are some considerations to keep in mind. Although they are durable, they are not entirely immune to damage from severe weather conditions, such as hail storms or high winds. Additionally, proper installation is key to maximizing lifespan; poorly installed shingles can lead to leaks and other complications.
Roman brick tiles typically measure around 12 inches by 3 inches, making them longer and slimmer than traditional bricks. This shape offers numerous benefits, including easy handling and the ability to create stunning visual effects through various laying patterns, such as herringbone or basketweave. Moreover, their porous nature allows for excellent thermal regulation, keeping buildings warm in winter and cool in summer, a feature highly valued in modern sustainable architecture.
In contrast, if you have wood, metal, or tile shingles, the repair costs may be substantially different. Wood shingles, while aesthetically pleasing, can be more expensive to replace due to their material cost and the potential need for a specialized contractor. In this case, homeowners could expect to pay anywhere from $300 to $700 for repairs. Metal roofs are durable and long-lasting, but the labor and materials might come with a higher price tag, often exceeding $500 for more extensive repairs. Similarly, tile roofs, known for their durability and longevity, may lead to costs upwards of $1,000, especially if multiple tiles are damaged.
repair roof shingles cost

- - Granule Loss The protective granules on shingles can wear away over time, leading to increased vulnerability to weather damage.
From a practical standpoint, flat grey brick tiles are highly functional. Their durable nature makes them suitable for high-traffic areas, such as entryways, kitchens, and outdoor patios. They can withstand the wear and tear of daily use while retaining their aesthetic charm. Additionally, the flat design of these tiles makes them easy to clean and maintain, ensuring that they can continue to look fresh and stylish over time. With the right sealant, grey brick tiles can also be resistant to stains and moisture, making them a suitable option for both indoor and outdoor applications.
flat grey brick tiles

2. Home Size and Roof Complexity The square footage of the roof and the intricacies involved in its design will impact labor and material costs. Complex roof structures with multiple angles and slopes may require more time and expertise to install, thus increasing overall costs.
Opting for a reputable roof shingle company ensures that you receive high-quality materials and professional installation services. A well-established company typically has a proven track record and positive customer reviews, indicating their commitment to excellence. They will often carry warranties on both the materials and labor, providing you with peace of mind.
When considering roof ceramic tiles for your home, it's essential to weigh the initial investment against the long-term benefits. While the upfront costs may be higher than other roofing options, the durability, energy efficiency, and aesthetic appeal of ceramic tiles make them a worthwhile investment. By understanding the various factors that influence pricing, homeowners can make informed choices that suit their budgets and enhance their property's value.
To successfully install asphalt shingles during winter, careful planning and execution are crucial. Here are some recommended steps
installing asphalt shingles in winter

The resurgence of interest in sustainable and eco-friendly architecture has further propelled the relevance of the double Roman vent. With a growing emphasis on natural ventilation and passive heating and cooling techniques, many architects are looking back at historical practices to inform modern designs. The double Roman vent, as an efficient means of natural ventilation, aligns perfectly with this trend, offering an attractive solution that minimizes reliance on mechanical systems.
Ventilation is another critical aspect of a successful metal roof installation over asphalt shingles. Adequate ventilation prevents heat buildup and moisture accumulation in the roof cavity, which can prolong the life of both the new metal roof and the underlying shingles. Homeowners should ensure that their attic is properly ventilated, as this will save money in the long run by preventing damage and reducing the risk of mold growth.
- - Leaks or Water Damage Any visible leaks inside your home or discoloration on your ceiling could indicate that your roof is failing.
Cons
Before diving into the installation process, it's essential to understand what architectural shingles and 3-tab shingles are. Architectural shingles, also known as dimensional shingles, offer a three-dimensional look with varied thicknesses and shapes, giving roofs a more textured appearance. In contrast, 3-tab shingles are flat and uniform, leading to a traditional look. While 3-tab shingles have been standard for many years, architectural shingles provide better wind resistance and longevity.
Final Touches
When it comes to roofing materials, homeowners are often faced with a plethora of options. Among them, asphalt roof shingles have gained popularity for their durability, affordability, and ease of installation. However, a new trend is emerging within this category asphalt shingles that mimic the look of natural slate. This innovative fusion of practicality and aesthetics is capturing the attention of homeowners looking for a stylish yet functional roofing solution.
Environmentally Friendly
In conclusion, Roman roof tiles exemplify the blend of functionality, durability, and beauty that defines much of Roman architecture. These tiles not only protected buildings from the elements but also contributed to the aesthetic identity of the Roman Empire. Their legacy endures, influencing architectural practices to this day and reminding us of the advanced skills and artistry of our ancient forebears.
The price of shingle roofing can vary significantly depending on the type of shingles you select. Asphalt shingles, the most common type, are often the most affordable option, with costs ranging from $90 to $100 per square (100 square feet). Architectural shingles, which provide a more textured and visually appealing look, can range from $100 to $150 per square. Higher-end materials, such as wood shakes or slate, can cost anywhere from $300 to $600 per square, significantly increasing your overall roofing expense.
When it comes to roofing, shingles are one of the most popular materials chosen by homeowners. They are versatile, durable, and available in a variety of styles and colors, making them suitable for almost any home aesthetic. However, understanding the costs associated with roofing shingles is essential for budgeting your project effectively. One of the conventional units used to measure roofing materials is a square, which covers an area of 100 square feet. This article will delve into the average cost for a square of shingles, considering various factors that influence these prices.
Shingling with Architectural Shingles A Comprehensive Guide
In the ever-evolving world of construction and architecture, roofing materials have taken significant strides towards innovation and sustainability. Among these modern solutions, shake and tile steel roofing has gained considerable attention for its aesthetic appeal, durability, and performance. This article explores the benefits of shake and tile steel roofing, highlighting why it might be the ideal choice for your next construction or renovation project.
1. Cold Temperatures One of the primary challenges when working with asphalt shingles in winter is the cold weather itself. Adhesive properties of shingles can be significantly compromised in low temperatures. The shingles may become brittle, making them more susceptible to damage during installation. Additionally, the roof deck may also be cold, which can affect how the shingles adhere to it.
Local building codes and regulations may also impact the shingle percentage estimate. Certain areas may require specific types of roofing materials or installation methods that could alter the quantity of shingles needed. Additionally, local climate conditions can influence the type of shingles chosen, which may subsequently affect the estimate.
The average price for asphalt shingles typically ranges from $80 to $100 per square (a square being an area of 100 square feet), though this can fluctuate based on quality, brand, and regional market conditions. Three main types of asphalt shingles are available three-tab shingles, architectural shingles, and premium shingles. Three-tab shingles are the most affordable, while architectural shingles, which are thicker and provide a more dimensional look, generally cost more. Premium shingles, often designed to imitate more expensive materials like slate or wood, represent the higher end of the market.
The Double Roman Vent A Unique Architectural Feature
In summary, double Roman grey roof tiles present a harmonious blend of aesthetics, durability, safety, and environmental considerations. They offer an impressive solution for those looking to enhance the beauty and functionality of their buildings. Investing in these tiles not only elevates the architectural appeal but also brings peace of mind with their long-lasting performance and low maintenance needs. As trends in architecture continue to evolve, double Roman grey roof tiles remain a timeless choice that transcends style, ensuring that they will be appreciated for generations to come.
Benefits of Individual Roof Shingles
Durability and Longevity
Lifespan of Metal Roofs
Exceptional Durability
1. Cost-Effective One of the primary reasons homeowners choose 3-tab shingles is their affordability. They are among the most economical roofing options available, making them ideal for those on a budget. Their lower initial cost does not compromise their durability, as they can provide reliable protection for many years.
Transforming an architectural vision into a tangible structure often begins with a simple idea—an inspired title that encapsulates the essence of a project. When we think about the journey from title to tin roof, we are delving into the creative and construction processes that bridge conceptualization to realization. This article explores the various stages involved in erecting a structure starting from its initial title, leading to the completion of a tin roof, symbolizing both protection and permanence.
As the demand for terracotta shingles increases, many suppliers now offer a wide variety of styles, colors, and finishes. When looking for terracotta shingles for sale, it is essential to consider the following
Fiberglass asphalt shingles are a type of roofing material that consists of a fiberglass mat saturated with asphalt. This design offers several advantages over traditional organic shingles, which are made from paper or cardboard. The fiberglass reinforcement enhances the shingle’s strength and resistance to tearing, making it a preferred option for homeowners seeking longevity and reliability in their roofing system.
The first step in the installation process is to ensure that the roof surface is clean, dry, and smooth. Remove any old roofing material, debris, or dirt. If the surface has holes or cracks, repair them with a suitable patching compound to ensure a solid base for the new roofing material.
The price of Titanium Dioxide in Taiwan rose considerably throughout December 2018, reaching 3,750 USD per metric ton. The price in Taiwan is 10% higher than the average price in the previous month and 1% higher than the average price one year before. In contrast, Titanium Dioxide prices in India were flat during December 2018, and were decline when compared to the average price in the preceding yeara decline of 3% from the previous year’s price.
Environmental considerations are also paramount in the production and supply of titanium dioxide. Manufacturers and suppliers are increasingly adopting greener technologies and practices to reduce the environmental footprint associated with mining, refining, and transportation. Efforts include improving energy efficiency in the production processes, implementing waste recovery systems, and exploring alternative sources of titanium that minimize ecological disruption.
Overall, BLR-895 suppliers are an excellent choice for companies looking for reliable, high-quality suppliers. Their commitment to excellence, dedication to quality control, focus on innovation, and strong customer service make them a top choice for businesses in need of suppliers.
5. Is EFSA banning titanium dioxide?
Titanium dioxide importers play a key role in the global supply chain of this essential material. Titanium dioxide is a white pigment that is commonly used in various industries, including paints, plastics, and cosmetics. Its high refractive index and opacity make it a popular choice for enhancing the opacity and brightness of products.
How we’re exposed to an ingredient matters greatly in terms of our long-term health.
Research shows that inhaling titanium dioxide particles in significant quantities over time can cause adverse health outcomes. Unless you work in an industrial setting, inhaling substantial amounts of titanium dioxide is highly unlikely.
Research shows that inhaling titanium dioxide particles in significant quantities over time can cause adverse health outcomes. Unless you work in an industrial setting, inhaling substantial amounts of titanium dioxide is highly unlikely.
1. Affordability One of the major selling points of 3% tab composition shingles is their cost-effectiveness. Compared to other roofing materials, such as metal or tile, asphalt shingles provide a more budget-friendly option while still offering reliable protection for your home.
3 tab composition shingles3. Variety of Colors These shingles are available in numerous colors and styles, allowing homeowners to choose a look that complements their home. Whether aiming for a classic look or a more modern appearance, 3-tab shingles can be tailored to match any exterior design.
Making an Informed Choice
In residential applications, clay tiles are commonly used for flooring, backsplashes, and decorative accents. Their natural earth tones add warmth and character to spaces, while their durability ensures they can withstand wear and tear. In commercial settings, clay tiles offer practical benefits as well; they are fire-resistant and easy to clean, making them ideal for high-traffic areas like restaurants and retail spaces.
tiles clayIf you are considering flat roof tiles for your roofing project, there are numerous options available to suit your needs. From cost-effectiveness to aesthetic appeal, flat roof tiles offer a range of benefits that can enhance the functionality and appearance of your home or business. Remember to consider installation and maintenance requirements to ensure your investment lasts for years to come. With the right choice of materials and proper care, flat roof tiles can provide a durable and stylish roofing solution.
3. Improved Aesthetic Appeal Missing or faded granules can detract from the overall appearance of your home. Replacing them can enhance curb appeal and maintain the market value of your property.
On average, the price of rosemary clay tiles can range from $3 to $10 per square foot, although custom orders or specialty tiles can push the price higher. Homeowners should also consider the cost of installation, which can add an extra $2 to $6 per square foot, depending on the complexity of the job and local labor rates.
2. Ceramic Tiles
For homeowners facing high upfront costs, financing options may be available. Many roofing contractors offer payment plans or financing through third-party companies. Additionally, homeowners may choose to invest in upgraded materials or features, such as enhanced warranties or energy-efficient shingles, which can impact the overall budget.
The Importance of Professional Installation
The Importance of Asphalt Shingle Maintenance
- - Heavy weight requires reinforced roofing structure
6. Customer Service Good communication is key to a successful roofing project. Opt for a company that values customer service and is willing to listen to your concerns. A responsive contractor will keep you informed throughout the process, making you feel confident and comfortable with your investment.
Durability and Longevity
While asphalt fiberglass shingles present numerous benefits, there are some considerations to keep in mind. Although they are durable, they are not entirely immune to damage from severe weather conditions, such as hail storms or high winds. Additionally, proper installation is key to maximizing lifespan; poorly installed shingles can lead to leaks and other complications.
Roman brick tiles typically measure around 12 inches by 3 inches, making them longer and slimmer than traditional bricks. This shape offers numerous benefits, including easy handling and the ability to create stunning visual effects through various laying patterns, such as herringbone or basketweave. Moreover, their porous nature allows for excellent thermal regulation, keeping buildings warm in winter and cool in summer, a feature highly valued in modern sustainable architecture.
In contrast, if you have wood, metal, or tile shingles, the repair costs may be substantially different. Wood shingles, while aesthetically pleasing, can be more expensive to replace due to their material cost and the potential need for a specialized contractor. In this case, homeowners could expect to pay anywhere from $300 to $700 for repairs. Metal roofs are durable and long-lasting, but the labor and materials might come with a higher price tag, often exceeding $500 for more extensive repairs. Similarly, tile roofs, known for their durability and longevity, may lead to costs upwards of $1,000, especially if multiple tiles are damaged.
repair roof shingles cost- - Granule Loss The protective granules on shingles can wear away over time, leading to increased vulnerability to weather damage.
From a practical standpoint, flat grey brick tiles are highly functional. Their durable nature makes them suitable for high-traffic areas, such as entryways, kitchens, and outdoor patios. They can withstand the wear and tear of daily use while retaining their aesthetic charm. Additionally, the flat design of these tiles makes them easy to clean and maintain, ensuring that they can continue to look fresh and stylish over time. With the right sealant, grey brick tiles can also be resistant to stains and moisture, making them a suitable option for both indoor and outdoor applications.
flat grey brick tiles2. Home Size and Roof Complexity The square footage of the roof and the intricacies involved in its design will impact labor and material costs. Complex roof structures with multiple angles and slopes may require more time and expertise to install, thus increasing overall costs.
Opting for a reputable roof shingle company ensures that you receive high-quality materials and professional installation services. A well-established company typically has a proven track record and positive customer reviews, indicating their commitment to excellence. They will often carry warranties on both the materials and labor, providing you with peace of mind.
When considering roof ceramic tiles for your home, it's essential to weigh the initial investment against the long-term benefits. While the upfront costs may be higher than other roofing options, the durability, energy efficiency, and aesthetic appeal of ceramic tiles make them a worthwhile investment. By understanding the various factors that influence pricing, homeowners can make informed choices that suit their budgets and enhance their property's value.
To successfully install asphalt shingles during winter, careful planning and execution are crucial. Here are some recommended steps
installing asphalt shingles in winterThe resurgence of interest in sustainable and eco-friendly architecture has further propelled the relevance of the double Roman vent. With a growing emphasis on natural ventilation and passive heating and cooling techniques, many architects are looking back at historical practices to inform modern designs. The double Roman vent, as an efficient means of natural ventilation, aligns perfectly with this trend, offering an attractive solution that minimizes reliance on mechanical systems.
Ventilation is another critical aspect of a successful metal roof installation over asphalt shingles. Adequate ventilation prevents heat buildup and moisture accumulation in the roof cavity, which can prolong the life of both the new metal roof and the underlying shingles. Homeowners should ensure that their attic is properly ventilated, as this will save money in the long run by preventing damage and reducing the risk of mold growth.
- - Leaks or Water Damage Any visible leaks inside your home or discoloration on your ceiling could indicate that your roof is failing.
Cons
Before diving into the installation process, it's essential to understand what architectural shingles and 3-tab shingles are. Architectural shingles, also known as dimensional shingles, offer a three-dimensional look with varied thicknesses and shapes, giving roofs a more textured appearance. In contrast, 3-tab shingles are flat and uniform, leading to a traditional look. While 3-tab shingles have been standard for many years, architectural shingles provide better wind resistance and longevity.
Final Touches
When it comes to roofing materials, homeowners are often faced with a plethora of options. Among them, asphalt roof shingles have gained popularity for their durability, affordability, and ease of installation. However, a new trend is emerging within this category asphalt shingles that mimic the look of natural slate. This innovative fusion of practicality and aesthetics is capturing the attention of homeowners looking for a stylish yet functional roofing solution.
Environmentally Friendly
In conclusion, Roman roof tiles exemplify the blend of functionality, durability, and beauty that defines much of Roman architecture. These tiles not only protected buildings from the elements but also contributed to the aesthetic identity of the Roman Empire. Their legacy endures, influencing architectural practices to this day and reminding us of the advanced skills and artistry of our ancient forebears.
The price of shingle roofing can vary significantly depending on the type of shingles you select. Asphalt shingles, the most common type, are often the most affordable option, with costs ranging from $90 to $100 per square (100 square feet). Architectural shingles, which provide a more textured and visually appealing look, can range from $100 to $150 per square. Higher-end materials, such as wood shakes or slate, can cost anywhere from $300 to $600 per square, significantly increasing your overall roofing expense.
When it comes to roofing, shingles are one of the most popular materials chosen by homeowners. They are versatile, durable, and available in a variety of styles and colors, making them suitable for almost any home aesthetic. However, understanding the costs associated with roofing shingles is essential for budgeting your project effectively. One of the conventional units used to measure roofing materials is a square, which covers an area of 100 square feet. This article will delve into the average cost for a square of shingles, considering various factors that influence these prices.
Shingling with Architectural Shingles A Comprehensive Guide
In the ever-evolving world of construction and architecture, roofing materials have taken significant strides towards innovation and sustainability. Among these modern solutions, shake and tile steel roofing has gained considerable attention for its aesthetic appeal, durability, and performance. This article explores the benefits of shake and tile steel roofing, highlighting why it might be the ideal choice for your next construction or renovation project.
1. Cold Temperatures One of the primary challenges when working with asphalt shingles in winter is the cold weather itself. Adhesive properties of shingles can be significantly compromised in low temperatures. The shingles may become brittle, making them more susceptible to damage during installation. Additionally, the roof deck may also be cold, which can affect how the shingles adhere to it.
Local building codes and regulations may also impact the shingle percentage estimate. Certain areas may require specific types of roofing materials or installation methods that could alter the quantity of shingles needed. Additionally, local climate conditions can influence the type of shingles chosen, which may subsequently affect the estimate.
The average price for asphalt shingles typically ranges from $80 to $100 per square (a square being an area of 100 square feet), though this can fluctuate based on quality, brand, and regional market conditions. Three main types of asphalt shingles are available three-tab shingles, architectural shingles, and premium shingles. Three-tab shingles are the most affordable, while architectural shingles, which are thicker and provide a more dimensional look, generally cost more. Premium shingles, often designed to imitate more expensive materials like slate or wood, represent the higher end of the market.
The Double Roman Vent A Unique Architectural Feature
In summary, double Roman grey roof tiles present a harmonious blend of aesthetics, durability, safety, and environmental considerations. They offer an impressive solution for those looking to enhance the beauty and functionality of their buildings. Investing in these tiles not only elevates the architectural appeal but also brings peace of mind with their long-lasting performance and low maintenance needs. As trends in architecture continue to evolve, double Roman grey roof tiles remain a timeless choice that transcends style, ensuring that they will be appreciated for generations to come.
Benefits of Individual Roof Shingles
Durability and Longevity
Lifespan of Metal Roofs
Exceptional Durability
1. Cost-Effective One of the primary reasons homeowners choose 3-tab shingles is their affordability. They are among the most economical roofing options available, making them ideal for those on a budget. Their lower initial cost does not compromise their durability, as they can provide reliable protection for many years.
Transforming an architectural vision into a tangible structure often begins with a simple idea—an inspired title that encapsulates the essence of a project. When we think about the journey from title to tin roof, we are delving into the creative and construction processes that bridge conceptualization to realization. This article explores the various stages involved in erecting a structure starting from its initial title, leading to the completion of a tin roof, symbolizing both protection and permanence.
As the demand for terracotta shingles increases, many suppliers now offer a wide variety of styles, colors, and finishes. When looking for terracotta shingles for sale, it is essential to consider the following
Fiberglass asphalt shingles are a type of roofing material that consists of a fiberglass mat saturated with asphalt. This design offers several advantages over traditional organic shingles, which are made from paper or cardboard. The fiberglass reinforcement enhances the shingle’s strength and resistance to tearing, making it a preferred option for homeowners seeking longevity and reliability in their roofing system.
The first step in the installation process is to ensure that the roof surface is clean, dry, and smooth. Remove any old roofing material, debris, or dirt. If the surface has holes or cracks, repair them with a suitable patching compound to ensure a solid base for the new roofing material.