A public agency does not buy one roof. It buys a decade of roofs, and the cheapest way to do that is to survey them all once and buy them in order. Kootenai County had 171,362 residents in 2020, third most in Idaho, and the cities, districts and county departments that serve them hold a long list of buildings. The Coeur d'Alene sheet is the local reference for snow, wind and frost, at 60 psf, 115 mph and 24 inches. Send us the building list and the plans. We return a ranked survey, a multi-year plan and a bid package with unit prices and alternates.
The call: survey everything, then bid in packages
A one-roof-at-a-time approach pays for mobilization, design and bidding again and again. A survey of every roof the agency owns, graded and priced, lets the budget office see the whole bill. Then the work goes out in packages: the failing roofs this year, the next tier next year, the sound roofs on a maintenance schedule.
Each package carries its own documents, unit prices and alternates. Contractors bid against the same scope, and the agency compares like with like. Packaging also lowers the cost per roof, because crane, crew and material move once. A survey costs a small fraction of a single emergency replacement, and it removes the emergency from the plan.
Rank by consequence as well as condition, because the same worn roof means different things over a records vault and over an open parking garage. A leaking roof over a records vault, a dispatch room or a polling-place storage area ranks above an equally worn roof over a parking garage. We add a column for consequence to the survey, and the budget office can read both columns together.
What it costs: documents, unit prices and public calendars
A public roof carries paperwork a private roof skips, from submittals and product data to inspection records and a closeout package, and that paperwork is priced as a line. Unit prices for wet insulation, deck repair and curb replacement let the agency know the cost of the unknown before award. Hold points, where an inspector signs off, add a day here and there and prevent buried defects.
Public calendars also cost money. Fiscal years, council meetings and budget hearings decide when funds exist, so the schedule starts with the award date. The schedule puts award date, material lead time and snow window in one place and shows what slips when the award slips. The agency's procurement officer sees the critical path, and a council member can see why a February award matters more than a June one. A late award in a short season means a roof that waits a year, and a roof that waits a year through another round of freeze and thaw usually arrives at the next bid with a larger wet area and a bigger number. Multi-year agreements for survey, design and a set number of roofs can lock a crew and a price, and they keep the agency from rebidding the same scope each spring.
What the code sheet says: 60 psf and a single sheet of criteria
Submittals in the city are reviewed against the adopted criteria City Building Services publishes, and Idaho's 2018 International Building Code underlies them, with local amendments allowed inside limits.
Agencies with buildings across the county work across a snow gradient. Annual snow rises from about 59 inches in Post Falls through 52.4 in Kellogg to 75.6 in Wallace, and Mullan at the end of the Silver Valley sits near 112. The design team sets each site's basis, and we price to it. A roof in the Silver Valley faces a heavier load than one on the Prairie, and the fastener pattern, the drift check and the snow-guard plan change with it.
Where it fails first: skylights, bay doors and flat roofs over offices
Public buildings share a few weak spots. Skylights over lobbies leak at the curb. Large bay doors, as on a maintenance shop or a fire station, collect sliding snow and ice at the header. Flat roofs over offices pond when drains freeze. Each has a known fix, and each fix has a price that can be written into the unit-price schedule before the first bid goes out.
Maintenance shops and equipment yards add their own details: vent hoods, exhaust fans and fuel-storage rooms with special roof rules. We list the rooms with special rules on the roof plan, and we ask the agency's safety officer to confirm hot-work and ventilation requirements before the bid. Better to price the permit time than to learn about it at the gate.
Essential buildings cannot go dark. A leak over dispatch equipment or an emergency operations room is a service problem, so we map those rooms on the roof plan and schedule work above them for low-risk hours. Where a room cannot be avoided, temporary protection goes up the day before and the room is checked after each shift. A commercial roof inspection before the bid shows which rooms sit under which roof section.
Alternates: recover, cover board and a longer service term
Break out what the board may want. A roof recover and overlay against a tear-off. A cover board for hail. A heavier edge for wind. A longer manufacturer program term is available where the system offers one. Every item is priced as an alternate with a stated tradeoff, so the board can accept the base, add the cover board on the roofs that face hail, and defer the longer term to the next cycle. Nothing in the alternates list forces an all-or-nothing choice.
Public owners should see life-cycle cost next to first cost. At the building level this is government building roofing, and the same planning serves school districts and public healthcare systems. A shared record format lets an agency compare roofs across departments.
Schedule and snow window: award by February, tear off in the dry months
Idaho agencies award on public calendars, and material lead times add weeks. The practical plan is a design and survey in autumn, a bid in winter, an award by February and tear-off in summer. Buildings in Rathdrum and Coeur d'Alene share one dry window. Open edges are tied down at the end of each shift in case a windstorm arrives.
Closeout: a record the auditor can read
The agency's file holds as-built drawings, product data, seam, flashing and drain photographs, core and moisture results, sign-offs, the punch list and a maintenance calendar. The package feeds a roof condition report cycle, so the next budget request starts with data. When a staff member leaves, the file stays, and the next facilities lead picks up where the last one stopped. A fall visit clears drains and a spring visit checks for ice damage, and both are on the maintenance calendar from the first day.
Commercial Roofing Questions
Why survey every roof before bidding?
A survey ranks the roofs and sets the budget. It prevents emergency replacements and lets the work go out in packages.
How do unit prices help a public bid?
They set the price of wet insulation, deck repair and curb work before award, so there is no change-order fight.
Do snow loads differ across the county?
Yes. Snow gets heavier toward the east, from the Prairie to the Silver Valley. We price to each site's design basis.
How do you protect critical rooms?
The rooms get marked on the roof plan, the roof above them is dried in daily, and work over them lands in low-risk hours.
What does closeout include?
As-built drawings, product data, photographs, inspection sign-offs, a punch list and a maintenance calendar.