Versico shows up on bid sheets for the same reason a mid-priced tool does: the owner wants a recognized single-ply system without paying for every upgrade. The range covers the common single-ply families, so the spec number matters. A TPO roof, an EPDM roof and a PVC roof can all carry this name, and the three can sit far apart on price. The 60 psf design snow in Coeur d'Alene levels some of the difference, since the snow details cost the same under all of them.
We read the family first, then price the lines under it.
Which Family: TPO, EPDM or PVC
The three families do different jobs. TPO is a welded, usually white sheet that goes down fast on big flat roofs. EPDM is a rubber sheet that stays flexible in the cold and costs the least. PVC is the welded sheet built for grease and chemicals. A spec that says only Versico leaves the choice open, and we ask the architect or the GC to name the family before we price.
If nobody can say, we price all three on a common base and show the gaps. The owner sees the rubber price, the TPO price and the PVC premium side by side, and the choice becomes a decision and not a default.
What It Costs: The Same Lines, Different Weights
Every single-ply bid has the same lines: membrane, insulation, cover board, attachment, edge metal, drains, penetrations and tear-off. What changes between makers and families is the weight of each. Membrane gauge and warranty tier change the first. The energy code that Idaho enforces statewide sets the insulation floor. Attachment choice, mechanically fastened, adhered or ballasted, sets labor.
We list each line and each choice, with alternates for the upgrades. A thicker membrane for traffic. Cover board for hail. Added drains for drift pockets. A longer warranty tier. The owner removes what the budget cannot carry and sees the effect on the number. Where the old roof is dry and sound, a recover can drop the tear-off line, and a scan and cores settle it.
Ballast is the quiet cost on some roofs. Stone or pavers hold a ballasted system down, and they add weight on top of the snow load. The engineer has to approve it, and the stone has to be cleared from drains and scuppers each year. We price an adhered alternate wherever the structure is tight, because a lighter assembly can be the cheaper roof once the structural check is done.
Snow Country Additions to a Standard System
A standard system detail does not carry the city's severe weathering rating, its 115 mph wind design and its ice barrier requirement. We add drains at drift pockets, raise curbs above the snow line, fasten the perimeter to the wind number and lay ice barrier at the eaves and low-slope edges.
Snow is not even across the region. Post Falls averages about 59 inches a year, Wallace around 75.6 and Mullan about 112. A system priced for Coeur d'Alene may need more at the east end of the valley, and the engineer's figure governs. We ask which end of the corridor the building sits on before we price.
Thermal swing is the other factor. The record low in Coeur d'Alene is minus 30 F and some summer days top 90 F, so the sheet expands and shrinks across a wide range. Seams, flashings and terminations get detailed to move with it, and we avoid pinning a long run of membrane at both ends.
Where It Fits: Warehouses, Flex Space and Suburban Retail
Cost-conscious single-ply is the natural fit for the tilt-up and flex stock on the Rathdrum Prairie. At Riverbend Commerce Park in Post Falls the tilt-up concrete stock includes a 50,000 square foot warehouse for up to five tenants, put up when industrial space was scarce. Spokane Valley, with its Yardley industrial area, and Liberty Lake, within about a mile of the Idaho line, sit along the same stretch of I-90.
For owners comparing makers on a shared set of plans, we price Carlisle SynTec and GAF alongside this one, with the same lines and the same alternates, so the numbers line up.
Multi-Tenant Roofs: One Roof, Several Schedules
A building built for up to five tenants has one roof and five operations under it. A reroof there is a coordination job. We meet with each tenant, mark quiet hours and no-go zones, and set the sections so the roof closes each day. Tenants may have racking, inventory or equipment under the deck, and the tear-off has to protect them. The cost shows as phasing and protection lines in the bid.
Warranty paperwork matters more where several parties share a roof. We file the application with the owner of record, copy the property manager and keep the maintenance log current, so a leak over one tenant does not turn into a dispute about who was supposed to call whom.
Warranty Tiers: What Each Step Adds
Warranty tiers are where the same membrane carries different prices. A basic term covers materials. A fuller term adds labor and consequential limits, and it comes with stricter requirements: thicker membrane, extra attachment, specific insulation and a maker inspection at completion. Wind limits are written in miles per hour, and exclusions for ponding, chemical exposure and storm damage show up in most forms.
We list each tier the maker offers for the system, with the added cost and the added requirements, so the owner picks with the numbers on the table. Whichever tier is chosen, the maker's file needs the as-builts, the photographs and the application on time. We submit all of it and give the owner the confirmation.
Schedule and Closeout: Order Early, Close Every Day
Single-ply goes on between spring thaw and the first heavy snow. Rolls, insulation board, fasteners and accessories arrive from different places, so we confirm every delivery date before the start is released. A short delay in September can push a job into the first storm, and we flag that risk in the bid. Material is staged on the roof or in a protected laydown, and every section is closed by dark.
A crew opens only what it can seal that day. When the forecast turns, the crew covers the open section and stops. That rule slows a job by a few hours and keeps the interior dry, which is what the tenants are paying for.
Winter calls are the exception. A failed roof cannot wait for spring, so we make it watertight with temporary materials and schedule the permanent work for the first stable stretch of weather.
Closing out means walking the roof with the GC, probing seams, photographing flashings and drains and finishing the punch list. The maker's warranty application and the as-builts go in on time. Our preventive maintenance visits then keep the roof inside the maintenance terms, with a dated record of each walk.
Commercial Roofing Questions
Does a Versico spec mean TPO?
Not always. The maker sells several families. We confirm which one the spec means before we price.
How do you compare it with other makers?
On the same plans, with the same lines and alternates. The spread is usually in the warranty tier and the accessories.
Can you install it?
We install and repair roofs of these families and follow the published details for the named system.
Is it a good fit for a warehouse?
Often, since big flat roofs favor single-ply. We check the snow load and the equipment first.
What if the spec says or equal?
The named system is base, the equal rides as an alternate and the warranty difference sits beside it.