Install Built Up Roofing

Installing built-up roofing can be a game changer for your commercial or flat-roofed structure. This durable roofing system, made of multiple layers of asphalt and felt, offers exceptional protection against the elements. Not only does it provide a long-lasting solution, but it also enhances energy efficiency, making it a smart investment for property owners.

While the initial costs can range from $5 to $10 per square foot, depending on materials and labor, the long-term benefits often outweigh the upfront expenses. Understanding the installation process and associated costs is crucial for ensuring you make the right choice for your roofing needs. In this article, you’ll discover the steps involved in installing built-up roofing and tips to help you save money while achieving a reliable roof that stands the test of time.

What Is Built Up Roofing?

Built-up roofing (BUR) is a traditional, widely used roofing system designed specifically for flat or low-slope roofs. Its composition consists of multiple layers, creating a robust and durable roof.

• Base Sheet: The first layer applied directly to the roof deck. It forms the initial waterproof barrier and is often made from fiberglass, saturated with asphalt for enhanced strength and water resistance.
• Roofing Felt or Fabrics: These middle layers consist of reinforcing felts or fabrics. They adhere using hot or cold bitumen, providing added insulation and flexibility to your roofing system.
• Bitumen: This adhesive layer, made from asphalt or coal tar, can be applied hot or cold. Hot bitumen is heated to liquefy during installation, whereas cold bitumen is applied without heating.
• Surfacing Materials: The final layer that includes options like gravel, ballasted asphalt, or a cap sheet. These materials contribute to the roof's durability and UV resistance.

Advantages Of Built Up Roofing

Built-up roofing (BUR) offers numerous benefits for commercial and flat-roofed structures. The system’s multi-layer design ensures both dependability and energy efficiency.

Durability And Longevity

Durability stands as a key advantage of built-up roofing. The multiple layers provide superior resistance to weather elements such as harsh UV rays, heavy rain, and extreme temperatures. Each layer adds to the roof’s structural strength, enhancing its lifespan, often exceeding 20 years with proper maintenance. Regular inspections and minor repairs can extend this longevity, making BUR a reliable choice for building owners.

Cost-Effectiveness

Cost-effectiveness is another notable benefit of built-up roofing. Although initial installation costs range from $5 to $10 per square foot, the long-term savings often surpass these upfront expenses. The durable nature of BUR translates to fewer repairs and maintenance over time. Energy-efficient properties of the roofing system may lead to decreased energy bills. In turn, the investment pays off through prolonged use and minimized ongoing costs.

Preparation For Installation

Preparation for the installation of built-up roofing plays a crucial role in ensuring a successful project. Various tools and materials, along with safety precautions, are essential for a smooth installation process.

Tools And Materials Required

To effectively install built-up roofing, gather the following tools and materials:

• Safety Gear: Use gloves, goggles, and a hard hat to ensure personal safety.
• Measuring Tools: Utilize measuring tape and chalk lines for precise measurements.
• Cutting Tools: Incorporate roofing knives and utility blades for cutting materials.
• Installation Tools: Use a roller or mop for bitumen application.
• Fasteners: Collect screws, nails, and plates for securing insulation and roofing layers.
• Insulation Boards: Select appropriate insulation boards for thermal efficiency.
• Bitumen: Choose suitable asphalt or modified bitumen for waterproofing and adhesion.
• Vapour Retarder: Obtain a vapour retarder to prevent moisture infiltration.

• Work Area Inspection: Assess the work area for hazards such as debris or unstable surfaces.
• Fall Protection: Ensure the use of safety harnesses and guardrails on elevated surfaces.
• Material Handling: Lift materials correctly to avoid injuries; use your legs, not your back.
• Proper Ventilation: Maintain adequate airflow when working with fumes from roofing materials.
• Emergency Response: Keep a first aid kit accessible and know emergency contacts.
• Follow Guidelines: Adhere to all local building codes and safety regulations throughout the installation process.

Steps To Install Built Up Roofing

Installing built-up roofing (BUR) involves a series of precise steps that ensure durability and compliance with building standards. Follow these key stages for a successful installation.

Surface Preparation

Prepare the existing roof surface meticulously. Clean any debris, old roofing material, or imperfections to ensure a smooth, even surface. Proper adhesion of the bitumen layers depends on this preparation. Inspect for structural issues and repair them as necessary to create a solid base for the roofing system.

Applying The Base Sheet

Apply the base sheet as the first layer. Typically, this consists of felt paper or a similar material. Adhere the base sheet securely to the roof deck to prevent any direct contact between the bitumen and the underlying structure. Ensure that the sheet overlaps at the seams to enhance water resistance.

Adding The Membrane Layers

Add multiple layers of bitumen above the base sheet. Use hot or cold installation methods, depending on your preference and local regulations. Ensure each layer is applied evenly, allowing for full coverage of the base sheet. This multi-layer approach contributes to waterproofing and adds insulation.

Finishing Touches

Complete the installation with finishing touches. Apply a protective surfacing material to enhance durability and UV resistance. Conduct a final inspection to check for any imperfections, ensuring the roofing system meets all local building codes. Proper finishing not only improves aesthetics but also boosts the roof's longevity.

Maintenance Tips For Built Up Roofing

Maintaining built-up roofing (BUR) enhances longevity and performance. Follow these essential maintenance tips:

• Inspect Regularly: Conduct inspections every six months. Look for signs of wear, such as cracks or blistering in the bitumen layer. Early detection prevents costly repairs.
• Clear Debris: Remove debris like leaves, branches, or dirt from the roof surface. Accumulated debris can trap moisture, leading to deterioration of your roofing materials.
• Check Drainage: Ensure that drainage systems, including gutters and downspouts, are unobstructed. Proper drainage reduces the risk of water pooling, which can damage the roofing layers.
• Repair Promptly: Address any identified issues immediately. Small leaks or cracks can expand over time if left unattended. Use appropriate patching materials to seal damages effectively.
• Reinforce Seams: Periodically inspect seams between layers. If they show signs of separation, apply a sealant or reinforcing fabric to maintain roof integrity.
• Avoid Foot Traffic: Minimize foot traffic on the roofing surface. Excessive weight can lead to sagging or punctures, compromising your roof's waterproofing capabilities.
• Professional Inspections: Hire a professional roofing contractor for thorough inspections at least once a year. Professionals can identify hidden issues and provide expert solutions.

Implementing these maintenance practices keeps your built-up roofing system in optimal condition, ensuring long-term protection for your building.

Conclusion

Choosing built-up roofing is a smart move for your commercial or flat-roofed structure. Its multi-layer design not only offers exceptional durability but also enhances energy efficiency, making it a cost-effective investment over time. With proper installation and maintenance, you can expect this roofing system to last well beyond 20 years, providing reliable protection against the elements.

By following the installation steps and safety precautions outlined, you can ensure a successful project. Regular inspections and maintenance will keep your BUR in top shape, ultimately saving you money on repairs and energy bills. Embracing built-up roofing means you're investing in a long-lasting solution that benefits both your property and your budget.

Frequently Asked Questions

What is built-up roofing (BUR)?

Built-up roofing (BUR) is a type of flat roofing system made from multiple layers of asphalt, felt, and other materials. It is designed to provide durability, waterproofing, and improved energy efficiency for commercial and flat-roofed structures.

What are the advantages of BUR?

BUR offers several benefits, including exceptional durability, longevity (often exceeding 20 years), reduced maintenance requirements, and significant energy savings. Its multi-layer design also offers enhanced resistance to harsh weather conditions.

How much does it cost to install BUR?

The installation cost of built-up roofing typically ranges from $5 to $10 per square foot. While initial expenses can be higher, the long-term savings on maintenance and energy bills make it a cost-effective investment.

What materials are used in BUR installation?

Key materials for BUR installation include base sheets for waterproofing, bitumen for adhesion, insulation boards for flexibility, and protective surfacing materials for added durability and UV resistance. Safety gear and installation tools are also essential.

What steps are involved in installing BUR?

Installing BUR involves several steps: first, prepare the roof surface, then apply the base sheet. Next, add multiple layers of bitumen for waterproofing, followed by protective surfacing. Finally, conduct a thorough inspection to ensure compliance with building codes.

How can I maintain my built-up roofing system?

To maintain BUR, conduct regular inspections every six months, clear debris, check drainage systems, and repair any issues promptly. Reinforce seams and limit foot traffic to enhance longevity, and consider hiring a professional for thorough annual checks.

How long does BUR last?

With proper maintenance, built-up roofing can last more than 20 years. Regular inspections and minor repairs contribute to its durability and help extend its lifespan significantly.

What safety precautions are necessary during BUR installation?

During BUR installation, it's crucial to ensure safety by inspecting the work area, using fall protection, handling materials carefully, providing proper ventilation, and following local building codes and safety regulations throughout the process.