Overview

Built-up roofing (BUR) is a time-tested and robust roofing option commonly used on low-slope or flat roof structures. Comprising multiple layers of bitumen and reinforcing fabrics, this type of roofing is known for its durability and waterproofing capabilities. BUR has been a preferred choice for commercial buildings for over a century due to its resilience and cost-effectiveness.

Composition and Installation

A standard BUR system includes several layers: a base sheet, fabric reinforcement layers (or plies), and a top layer of bitumen, which can be asphalt, coal tar, or a cold-applied adhesive. The number of plies in a BUR system can vary, typically between two to four, depending on the needed durability and the roof’s expected traffic. The installation process concludes with a surfacing layer, which is often gravel, mineral cap sheets, or a liquid-applied coating, providing UV protection and additional waterproofing.

Durability and Performance

Built-up roofing is particularly valued for its multi-layered protection. Each ply layer adds a level of redundancy, enhancing the roof’s ability to resist water and weather damage. This roofing type is also known for its exceptional tensile strength, which is crucial for roofs exposed to regular foot traffic or heavy service equipment.

Thermal Performance

BUR systems offer excellent thermal resistance. The thickness and nature of the materials provide substantial insulation properties, which helps in maintaining internal temperatures and reducing energy costs. This makes BUR an excellent choice for buildings in both hot and cold climates.

Cost-Effectiveness

While the initial installation cost of a built-up roof can be higher than some other roofing types, its longevity and low maintenance needs provide a high return on investment. Built-up roofs can last 20 to 30 years or more with proper maintenance, making them a financially sound choice for long-term property investments.

Maintenance and Repair

Maintenance for built-up roofing is generally straightforward. Regular inspections and prompt repairs of any detected punctures, blisters, or cracks are essential to extend the roof’s lifespan. Recoating or adding additional surfacing layers can also renew the roof’s surface and extend its service life.

Environmental Considerations

Recent advancements in BUR technology include the use of more environmentally friendly materials and processes. Modern BUR systems can incorporate recycled materials in the bitumen and offer more eco-friendly alternatives for the surfacing layer, such as reflective coatings that reduce the urban heat island effect.

Why Choose Reindeer Roofing for BUR?

At Reindeer Roofing, we specialize in providing high-quality built-up roofing services tailored to meet the specific needs of your commercial property. Our team of certified professionals uses the latest techniques and the best materials to ensure your roof is durable, energy-efficient, and built to last. Choose us for your BUR needs and benefit from our commitment to excellence and customer satisfaction.