Project Overview
Beacon Roofing was selected to complete a full commercial roof replacement for Mullen High School after the campus experienced extensive and recurring roof leaks caused by an aging ballasted EPDM roofing system.
After a thorough evaluation, it was determined that continued repairs would be costly, temporary, and insufficient for long-term performance. Beacon Roofing worked closely with school representatives to design and execute a complete replacement solution that improved durability, reduced future risk, and minimized disruption to students and faculty.
Existing Roof Conditions
- Aging ballasted EPDM roof system
- Widespread active leaks
- River rock ballast covering the system
- Moisture intrusion in select insulation areas
- Ongoing maintenance issues with no long-term fix
Due to the age and condition of the system, repair-only options were ruled out in favor of a full replacement.
Roofing Solution Implemented
Beacon Roofing replaced the existing system with a Johns Manville 60-mil fully adhered TPO roofing system, providing a modern, high-performance solution built for long-term reliability.
Key System Details
- Roof Area: ~240 squares
- New System: Johns Manville 60-mil fully adhered TPO
- Warranty:
- 20-Year No Dollar Limit (NDL) Manufacturer Warranty
- 5-Year Workmanship Warranty (covered within NDL)
Ballast Removal & Material Coordination
A significant component of this project involved the safe and controlled removal of existing river rock ballast.
Rather than disposing of the material, Beacon Roofing coordinated with the school to store the ballast on campus, allowing it to be reused for other landscaping and campus needs — saving the client additional expense.
- Ballast was removed by hand
- Work was performed cleanly and methodically
- Campus safety and cleanliness were prioritized throughout the process
Installation Process
Once the ballast and existing roofing system were removed, Beacon Roofing:
- Delivered and staged all roofing materials on-site, including:
- TPO membrane
- DensDeck cover board
- Flashing components
- Coping cap
- Walk pads
- Carefully inspected all existing insulation
- Replaced only insulation impacted by moisture intrusion, reducing unnecessary material costs
This approach allowed the client to receive a new roof system without paying for insulation replacement where it wasn’t required.
The total tear-off and replacement process took approximately two weeks, with work coordinated around school operations to ensure minimal disruption.
Safety & Scheduling Considerations
Because the project took place on an active school campus, safety and scheduling were critical.
Beacon Roofing worked closely with school administrators to:
- Coordinate work around school hours and activities
- Maintain clear safety zones
- Protect students, faculty, and staff throughout the project
This coordination was essential to delivering the project smoothly while maintaining a safe learning environment.
Project Outcome
The client was extremely pleased with the outcome, receiving:
- A brand-new commercial roofing system
- Long-term manufacturer-backed protection
- Reduced future maintenance risk
- Cost savings through selective insulation replacement
- A clean, safe jobsite throughout the project
Most importantly, the school gained peace of mind knowing their facility is protected by a modern roofing system designed to perform for decades.
Commercial Roofing Backed by Manufacturer Partnership
Beacon Roofing is a Johns Manville preferred contractor, allowing us to install systems that qualify for industry-leading warranties and long-term performance assurances.
We work with:
- Schools and institutions
- Property managers
- Commercial building owners
- Brokers and ownership groups
to deliver roofing solutions focused on performance, documentation, and lifecycle value.
Request a Commercial Roof Assessment
Beacon Roofing provides professional commercial roof inspections and replacement services across Denver and the Front Range.