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Modified Bitumen Roofing for Baldwin Park, CA Businesses

Highland Commercial Roofing installs and repairs modified bitumen roofing systems built for Baldwin Park's industrial and warehouse properties, delivering multi-layer protection against San Gabriel Valley heat cycling and wear.
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Emergency Leak Service

Why Modified Bitumen Roofing Works for Baldwin Park Properties

For commercial roofing services in Baldwin Park, modified bitumen remains a trusted choice for low-slope industrial and warehouse buildings across the San Gabriel Valley. As an eight-time Guildmaster Award winner for Service Excellence, Highland builds modified bitumen systems using multiple reinforced layers, typically combining a base sheet with a granulated cap sheet, to create redundancy that single-ply membranes don’t offer. 

That layered construction gives the system strong resistance to foot traffic, rooftop equipment, and the repeated expansion and contraction that comes with Baldwin Park’s summer heat cycling. Modified bitumen also performs well on older industrial buildings with irregular roof penetrations or heavier structural loads, where its design offers a reliable long-term option. Highland’s crews are experienced in both torch-applied and self-adhered modified bitumen installation methods, selecting the right approach based on building type, insulation, and fire code requirements for each Baldwin Park property.

How long does modified bitumen roofing last in Baldwin Park?
Modified bitumen roofing systems typically last 10 to 30 years in Baldwin Park, depending on the number of plies installed, application method, and how consistently the roof is maintained. Multi-ply systems with a granulated cap sheet generally fall on the longer end of that range. Regular inspections help catch seam wear or blistering early, extending the system’s service life despite the area’s heat load.
What’s the difference between modified bitumen and BUR (built-up roofing)?
Both are multi-layer asphalt-based systems, but modified bitumen uses factory-manufactured sheets reinforced with polymers for added flexibility and tear resistance, while BUR is built up on-site from alternating layers of asphalt and felt. Modified bitumen generally installs faster and handles temperature swings better, while BUR offers a long track record on flat industrial roofs. Our team can help determine which fits your building.
Can modified bitumen be installed over an existing roof?
In some cases, yes, provided the existing roof deck and layers are in suitable condition. California’s building code (Title 24, Part 2) permits a maximum of two roof covering applications on a structure, so buildings that already carry two layers require a full tear-off before a new modified bitumen system can go down. Highland verifies layer history against California’s reroofing requirements before recommending a full replacement.
Does Highland offer repair and emergency leak service for modified bitumen roofs?

Yes. Highland provides emergency leak service and repair for modified bitumen systems throughout Baldwin Park. Common issues include seam separation, blistering, and flashing failures around rooftop penetrations. Our technicians diagnose the source of the leak and complete repairs that restore the system’s layered protection without compromising surrounding roof sections.

 

A commercial roof in the middle of one of the most common types of commercial roof repairs
A flat black roof with a smooth surface—crafted using the best flat roof repair material—is shown under a blue sky with a few clouds and some trees in the background.

Partner With Baldwin Park's Modified Bitumen Roofing Specialists

Highland Commercial Roofing has spent over 30 years serving Baldwin Park and the greater San Gabriel Valley, working with warehouses, industrial buildings, office properties, healthcare facilities, schools, and multi-family properties throughout the region. Our team handles the full lifecycle of modified bitumen roofing, from asset assessment and budgeting through installation, preventative maintenance, and emergency repair. We also assist with insurance claims when storm damage or other covered events affect your roof.

Highland’s crews bring decades of hands-on experience with both torch-applied and self-adhered application methods, ensuring each system is installed to match the building’s specific fire code and structural requirements. Contact us today to schedule a modified bitumen roof assessment for your Baldwin Park property and learn how a properly installed multi-layer system can protect your investment for decades.

Commercial Roofing Services

Highland is your complete commercial roofing contractor for all re-roof, maintenance, repair, and roof asset management services in Southern California. As one of the leading roofing companies in California, we specialize in providing top-tier solutions for businesses of all sizes. Our team of expert California roofers is dedicated to delivering exceptional quality and long-lasting results. When it comes to roofing in California, you can trust Highland to handle all your roofing needs !

Asset Assessment & Budgeting
Commercial Re-Roof
Emergency Leak Service / Roof Repair
Preventative Maintenance
Proactive Roof Asset Management
Tenant Improvements
The Highland Difference
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Chris Hinck
Regional Vice President, Southern California

Your Local Expert

Chris Hinck has been with Highland Commercial Roofing (HCR) for 7 years, serving as the Vice President of Operations for Southern California. Drawn to Highland by the opportunity it presented, Chris has found fulfillment in the company’s structured processes and growth potential.

Chris values the work ethic and dedication of HCR’s employees, and he appreciates the diversity and long-standing relationships with customers. He believes Highland’s success is a collective effort, driven by the commitment of everyone at the company. Chris’s role has been to both encourage and be inspired by his team, contributing to Highland’s development and success.

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Address

5105 Heintz Street
Baldwin Park, CA 92663
License #: C-39-632551

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