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Roof Replacement (IDOT)

Pontiac IDOT Front_edited.png
Pontiac IDOT Roof 2_edited.png
Pontiac IDOT Roof_edited.png
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Overview:  The Storage Building at the Pontiac Traffic Facility underwent repairs to fix water issues in its truck garage bays. The 5,184 square-foot building had problems with water seeping in from the roof and exterior walls.


Project Details: The original roof was a built-up roof (BUR) system, with a later addition of a standing seam metal roof that sloped from the front to the back, forming a shed roof.

To address the water problems, the solution involved removing both the metal roof and the existing BUR system down to the wood decking. A TPO membrane system was then installed over tapered insulation, creating a new shed roof. This design allowed water to flow into a new gutter and downspout system. The edges of the roof were carefully sealed with coping caps and roof drip edges to ensure water-tight protection. Additionally, the new TPO system was designed to create a waterproof seal around any existing roof openings

The scope of work required an assessment of the existing roofing system, design documentation for repairing/replacing the roof as determined necessary.


Project Year: 2017 - 2018

Project Value: $236,325


Location: Pontiac, IL


Scope: Evaluation and Design Documentation.

About the Client: The Illinois Department of Transportation (IDOT) is a state agency in charge of state-maintained public roadways of the U.S. state of Illinois. In addition, IDOT provides funding for rail, public transit and airport projects and administers fuel tax and federal funding to local jurisdictions in the state.

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