Basic flat asphalt shingles with uniform profiles.

Dimensional asphalt shingles with layered design for depth.

Popular roofing material made from fiberglass and asphalt coating.

Static roof vents improving attic airflow.

What Is Built-Up Roofing (BUR)?

Built-up roofing (BUR) is a proven flat roofing system commonly used on commercial and low-slope residential buildings. It is a multi-layer system using asphalt and reinforcing felts, designed to create a thick, durable roofing membrane that stands up to water, UV exposure, and daily wear. BUR has been used for decades because of its reliable waterproofing performance and long-term value.

As a multi-layer system using asphalt and reinforcing felts, BUR is constructed by alternating layers of bitumen (asphalt or coal tar) with roofing felts or fiberglass sheets. These layers are built up to form a strong, watertight barrier, and the final surface is often finished with gravel or a reflective coating for added protection. The multiple layers provide redundancy, meaning the roof can still perform well even if one layer becomes damaged.

Built-up roofing is especially effective for roofs with heavy foot traffic, rooftop equipment, or areas that require extra durability. It offers excellent puncture resistance and can help protect against impacts from debris or maintenance activity. BUR systems can also support improved energy efficiency when paired with reflective surfacing or added insulation.

For property owners looking for a dependable and time-tested flat roof option, built-up roofing delivers strong performance. With a multi-layer system using asphalt and reinforcing felts, BUR provides long-lasting waterproof protection and durability that makes it a trusted choice for low-slope roofing systems.

Hand-split natural wood shingles offering rustic texture.

Saw-cut wood shingles with uniform thickness and shape.

Small roof structure diverting water around chimney bases.

Metal flashing sealing roof joints around chimneys.

Traditional kiln-fired tiles known for longevity and heat resistance.

Nails loaded in coils for pneumatic nailers.

Durable roofing tiles molded from concrete mixtures.

What Are Cool Roof Shingles?

Cool roof shingles are an energy-efficient roofing solution made to reflect more sunlight and absorb less heat than traditional asphalt shingles. These reflective shingles designed to reduce heat absorption help keep roof surfaces cooler, lowering attic temperatures and reducing the need for air conditioning—especially in warm climates like San Diego.

As reflective shingles designed to reduce heat absorption, cool roof shingles typically have specially coated granules that reflect infrared and UV rays. This not only improves comfort inside the home but also helps extend the lifespan of the roofing materials by reducing thermal stress and degradation from prolonged sun exposure.

These shingles come in a variety of colors and styles, many of which meet ENERGY STAR® or Cool Roof Rating Council (CRRC) standards for solar reflectance. They can be installed just like standard shingles, making them an easy upgrade for homeowners looking to improve energy efficiency without changing the roof structure.

Whether you're building new or replacing an existing roof, cool roof shingles offer a smart way to boost comfort and lower energy bills. With reflective shingles designed to reduce heat absorption, they combine style, sustainability, and long-term performance.

Protective top piece covering parapet walls.

Wavy-pattern metal panels used on residential and commercial roofs.

Ventilated batten system improving airflow under tiles.

Structure diverting water around roof protrusions.

Specialized flashing used with chimney crickets.

Additional layer placed on decking to prevent moisture damage.

Vertical pipes carrying water from gutters to the ground.

Materials preventing ice dams at roof edges.

Flexible coating providing waterproofing and UV resistance.

What Is an EPDM Roofing Membrane?

An EPDM roofing membrane is a highly durable, flexible roofing solution made from synthetic rubber. It’s a rubber-based membrane used for low-slope and flat roofs, offering superior resistance to weathering, UV rays, and temperature extremes. EPDM stands for ethylene propylene diene monomer, and it’s one of the most widely used materials in commercial and residential flat roof applications.

As a rubber-based membrane used for low-slope and flat roofs, EPDM is typically manufactured in large rolls, allowing for minimal seams and a cleaner, more watertight installation. It can be applied using adhesives, mechanical fasteners, or ballasted systems depending on the building's needs. Once installed, the membrane forms a strong, flexible barrier that can expand and contract with building movement without cracking or splitting.

EPDM membranes are valued for their long service life—often exceeding 20–30 years with proper maintenance. They’re also compatible with reflective coatings to enhance energy efficiency and reduce rooftop heat absorption. Available in black or white finishes, EPDM offers versatility for different climate conditions and building styles.

For property owners seeking a reliable and cost-effective flat roofing option, EPDM delivers proven performance. With a rubber-based membrane used for low-slope and flat roofs, it offers excellent durability, easy installation, and long-term weather protection.

Lightweight expanded polystyrene foam insulation board.

Horizontal board covering rafter ends along roof edges.

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