Roofing for Logistics and 3PL Operators in Missoula, MT

On a distribution roof in Missoula, MT, the dock side goes last. The loading doors are the busiest edge of the building, and the roof edge above them is where staging, hoists and crane picks want to go. If the order is wrong, the crew blocks the trucks, the trucks block the crew and the schedule loses a week of a weather window that is already short. Snow stays on the ground about 120 days a year, so the months for tear-off are limited. We map the dry-in sequence from the quiet end of the building toward the dock, and we put the crane pick in the gaps between inbound loads.

You get the map before material is ordered, with the days the dock lanes are affected.

A distribution roof is large and plain, and size works against it. A long membrane field moves as one piece with temperature. The seams carry the strain. Late-summer days swing by more than 30 degrees, and about 45 days a year hold below freezing from morning to night.

We start at the drains and sumps. A drain and scuppers count against the roof area shows whether the building can shed a burst of water. Undersized drainage is a real risk, not a theory, after the 2016 storm that overwhelmed storm drains in central and south Missoula.

Next come the edges, the dock levelers, the skylight curbs and the vents. Each is a penetration with a seal. Last, we probe the field seams and take cores where the scan flags a damp area.

Fall protection is part of the walk. Open edges at the dock, skylights and roof hatches go on the plan with a note, so anyone who goes up later, from a vendor to a surveyor, knows where the danger is. Roof hatches get a latch check, because a hatch that will not close lets snow and meltwater into the stairwell.

Dock doors cannot close. Trucks arrive on a schedule that does not move for a roof. We lay out the staging area and the material hoist on the side of the building that does not interfere with truck turns. Edge protection goes in before tear-off, and drivers get a map of the exclusion zones with the days they apply.

We work in bays, not across the whole roof. Each bay is dried in the same day. That is slower than a full strip, and it keeps the building running and the stock dry. On a large warehouse roof, two small crews at opposite ends can recover some of the time. Crane picks go in the gaps between inbound trucks, and the yard lead gets the pick schedule a day ahead.

The laydown yard stays small. A large one eats trailer parking, and parking is the first thing a dock operator misses.

Weather windows on the dock side are the narrowest. A cold front can arrive in an afternoon and stop adhesive work for a day. Tie-ins are ready at the close of every shift and open bays are covered before the crew leaves; a short list of cold-tolerant tasks, such as flashing prep and drain cleaning, keeps a cold day productive.

Every bay closes with a walk, a punch list and photographs, a water test of the drains, a flashing check and a clean roof and yard. The operations lead signs off, and the record goes into the building file with the next review date. Peak shipping weeks and inbound appointments go on the same wall chart as the roof phases, so the yard lead and the roof foreman read one schedule.