Commercial Roofing in Lake Forest, IL

Corporate, medical and college buildings

Lake Forest's largest employers include Northwestern Lake Forest Hospital (1,395), Abbott (826), Trustmark (712), Pfizer (700) and Lake Forest College (415). A corporate and office development lies along the Tri-State Tollway on the northwestern border, and US 41, Illinois Routes 43 and 60 and two Metra lines serve the city.

Those employers point to the kinds of buildings in the city. Corporate offices, medical buildings and educational buildings each bring their own first questions: appearance and mechanical screens for offices, sensitive spaces below for medical use, and calendars and mixed building ages for education. Each walk is written for the building underfoot.

Medical and college buildings carry their own schedules. A hospital roof is worked around clinical hours and air intakes. A college roof is worked around terms, exams and events. We ask for each calendar at the first visit and place the loud or dusty steps in the quiet windows, with protected walkways and clear notice throughout.

Drone survey and hands-on follow-up

A drone roof inspection gives a full-roof view without foot traffic. It finds ponding, lifted caps, displaced equipment, debris and obvious damage, and it produces a photo set tied to the roof plan. It does not replace the hands-on walk. Probing seams, checking fasteners and pressing suspect spots still require a person on the roof.

So we use both. The drone flight sets the scope and the order, and the hands-on walk confirms and rates each finding. Where moisture is suspected, an infrared moisture survey and core cuts show what the insulation holds. The cores are patched the same day and logged by location and thickness.

Drone data stays useful after the flight. Images are tied to the roof plan and stored by date, so a later flight can be compared frame to frame. Ponding that grows, a cap that moves further or debris that returns to the same corner shows up as a change between two sets. That comparison is cheaper than a second full walk and catches trends early.

Mechanical screens and rooftop equipment

Where a roof hides its equipment behind screens, the screens add flashing details: posts through the membrane, caps, sleeper supports and wall tie-ins. Each is a possible leak. We photograph every post base and cap, rate the flashing and note whether sealant or a mechanical termination holds it.

Equipment itself needs a record. Units, curbs, rails, conduit and refrigerant lines are listed with their condition and distance from drains. Recent additions get special attention, because a unit set after the roof was laid is easy to flash badly. Rooftop equipment curbs and supports that are tight today still shift with thermal movement, and the log shows when they start to open.

Roof access for service crews is a finding too. Hatches, ladders and guardrails around equipment are checked, and gaps are reported to the owner. Safe access keeps technicians from improvising routes across the membrane, and it keeps the log honest about who goes where.

Energy, reflectivity and solar planning

Energy use is a fair question on a corporate roof. A reflective membrane lowers surface temperature, and a cool roof can reduce cooling demand in summer. Kenosha has recorded 105 degrees in July 2012, and a dark roof absorbs that heat fully.

Solar is the other question. A roof that will carry panels must have a sound membrane, dry insulation and room for mounts, and the roof should be in good condition before anything is installed over it. Replacing a membrane under panels is expensive. A baseline report tells an owner whether a roof is ready for solar-ready roofing work or needs repairs first.

Insulation is the quiet part of an energy plan. An old roof with thin or wet insulation wastes heating and cooling no matter how reflective the surface is. The core cuts show thickness and moisture, and the report states whether adding insulation at replacement is worth it. Current energy code requirements apply at that point, and we check them as part of the scope.

Winter Findings and Storm History

About 36.2 inches of snow fall on Kenosha in an average year, and January 1985 brought a low of minus 31 degrees. Snow loads sit on roofs through January and February, the snowiest months. Cold shrinks membranes and stiffens sealants. Thaw water searches out every open lap.

Each spring we compare photos against the fall set. A lap that opened over winter, a flashing that cracked or a drain that held ice becomes a dated finding. Keeping the series lets a facility team plan repairs by trend and not by emergency. After a major storm, the same record separates new damage from old wear for any insurance review.

Two tornadoes on January 7, 2008, one in the Wheatland and Brighton areas and one in Somers and on Kenosha's north side, damaged 105 homes. That history is a reason to rate edge metal, coping and perimeter fasteners on every walk and photograph anything that has moved since the last visit.

The close-out package ends each job. It holds the final photo set, repair locations on the roof plan, product data and warranty notes, so the facility team can open it a year later and see exactly what changed. An owner with buildings in Lake Forest, Lake Bluff and Libertyville receives the same format for each, which makes a multi-site capital plan simple to rank. A maintenance program keeps the log current between projects.