Service Areas
Commercial Roofing in Tacoma, WA
The count that matters to a Tacoma superintendent is wet days. Tacoma gets about 40.8 inches of precipitation spread over roughly 155 wet days, which means more than two out of every five days carry some chance of rain on an open roof. So the first thing he does on a job is walk the deck with the forecast in one hand and the roof plan in the other, and size every section of tear-off to what the crew can seal by evening.
Commercial roofing in Tacoma, WA covers a wide range of property types, from healthcare and retail to office and industrial. The walk is the same in each: cut cores, run fastener pull tests, mark the limits in paint, settle the staging area, then plan the crane pick, the tear-off, the dry-in and the tie-ins.
How does 155 wet days a year change a replacement schedule?
It changes the size of the opening. On a dry-climate roof a crew might strip a whole building in two or three days. In Tacoma the same crew works in sections, with each section removed, inspected, insulated and closed with membrane in one day. A temporary seal goes on any edge that cannot be finished, and the seal is tested with a hose before the crew leaves.
July and August give the widest windows, and large replacements are often scheduled for them. Other months are workable, but the forecast sets the pace. We read it each morning and each afternoon, and we pull the day's work back if wind or rain moves in. Auburn, up the valley, collects a similar 37.1 inches, with November and December the wettest, so the wet-season pattern is regional, and the same sequence applies on roofs in Auburn and Kent.
The dry-in is the part owners rarely see and most need to understand. Before the membrane goes down, the crew checks that the deck is sound, sets substrate board over the insulation, and walks the section for anything that could puncture the new sheet. Only then does the membrane go on, and its edges are terminated that day.
What does a healthcare roof require that an office roof does not?
MultiCare Health System (8,264 employees) and CHI Franciscan Health (5,682) are among the largest employers in Tacoma. A hospital roof and a medical office roof differ from a standard commercial roof because the interiors cannot tolerate dust, noise or water, and because the building does not close. The controls are specific.
Those controls include an infection-control plan agreed with the facility's safety staff, air intake isolation or temporary shutdowns, noise limits near surgical and patient areas, a debris-control method, and a leak response path that goes straight to the facilities engineer. The crane pick is scheduled outside ambulance and delivery hours. Tear-off areas are small, and each is sealed before the next opens. Hospitals run on a capital plan, so the roof plan also gives the owner phase costs and a priority list.
How do you plan a roof job at a retail center or near an arena?
Tacoma Mall is the city's largest shopping center, owned by Simon Property Group, and the Tacoma Dome opened in 1983. Retail destinations and event venues move large numbers of people on a schedule. A tear-off near either one cannot block the entrances, fire lanes or parking that guests use, so staging is the first thing the crew leader settles.
We agree on the lay-down yard, the crane footprint and the hours material arrives with the property manager. Fenced walkways and spotters go in before any overhead work begins, and noisy removal moves to hours outside shopping peaks and event nights. For a shopping center roof with several tenants, we also coordinate with each tenant's HVAC vendor, since a service call on a rooftop unit mid-project can put foot traffic on new membrane.
What changes when the work is on or near a military installation?
Joint Base Lewis-McChord is the city's top employer at 54,000. The base sits about 9 miles south-southwest of the city and spreads over Lewis Main, Lewis North and McChord Field, more than 86,000 acres in all, with the 62d Airlift Wing and its C-17 Globemaster III aircraft at McChord Field. Roof work on an installation adds gate and escort procedures, badging, scheduling around mission operations, and design to the Unified Facilities Criteria for roofing.
Roof work on a hangar, a barracks or a maintenance building is planned in the same order as any other roof, with added lead time for gate access and escort. For military installation roofing, that lead time is the first item on the schedule, and the contractor who cannot get crew and material through the gate on the planned day loses the day.
How are the edges, tie-ins and closeout handled?
Edge securement is on every Tacoma walkthrough, with the 74 mph that Enumclaw recorded in November 2024 as the benchmark. Edge metal and coping are fastened for that kind of gust, perimeter fasteners are pull-tested and every joint is sealed. Tie-ins to parapet walls, curbs and canopies get a drawn detail and a named crew member.
The owner's superintendent and our crew leader close the job by walking every tie-in together. The day-one punch list is written on the roof with dated photographs, and the handover roof plan marks core locations, drains and penetrations. A maintenance visit after the first heavy autumn rain checks each new detail against that plan, which matters in a city that sees wet weather on more than a third of the year's days. For the working port side of the city, the Port of Tacoma and Tideflats has its own conditions.
Commercial Roofing Questions
How does a hospital keep running during a reroof?
The roof plan is built with the facility's safety and engineering staff before mobilization. Tear-off areas stay small, intakes are isolated, noise limits apply near patient areas, and each section is sealed before the next opens. A direct line from the crew leader to the engineer on duty handles any leak or change.
Can a mall roof be replaced in phases without shutting any store?
Usually, yes, when the phases follow the roof layout and each one is watertight on its own. We break the work at a wall, a curb or a drain divide, move noisy removal to the hours the property manager picks, and keep fire lanes open. Each phase costs extra for remobilization, and the plan shows that cost.
Should an owner recover a worn roof or tear it off?
Cores answer that. A recover fits an attached membrane over dry insulation on a sound deck, and it avoids exposing the building during a long wet season. Wet insulation across much of the field, or a roof already recovered once, points to tear-off. We bring the core map and both paths with their cost drivers to the walkthrough.
What does it cost to wait on a roof with a slow leak?
Wet insulation spreads sideways under the membrane, so a small stain can sit above a much larger wet area. Waiting lets that area grow, which can turn a repair into a partial replacement. A moisture survey maps the wet insulation, and the repair scope follows that map.
Do Washington codes affect a re-roof in Tacoma?
Washington's amended 2021 building code and the 2021 IECC apply to a re-roof in Tacoma. When a tear-off alters the insulation or the assembly, a permit is usually required and the new insulation has to meet current levels. Requirements are confirmed with the jurisdiction before the schedule is set.
Who answers the emergency line at night?
Someone answers the emergency line at any hour, holidays included. The crew locates the leak, closes it off for the night and records the damage for the owner's file. The permanent repair follows once the deck is dry.
Send the roof plan and the access rules
Send the roof plan, the operating hours and any access or infection-control rules. We will walk the sequence, staging and tie-ins with your superintendent before a number goes on paper.
