A roof is the one line in a closing budget that can move the price by six figures, and it is the one most buyers estimate from the parking lot. In Coeur d'Alene, ID that estimate misses the snow. The city's design snow is 60 psf and it requires ice barrier underlayment, and a roof that was built or patched to lighter numbers shows it. Send us the offering memo and the plans. We return a roof survey, a cost range by roof and a remaining-life estimate before the deadline.
The call: survey the roof inside the due diligence window
Due diligence windows are short. A roof survey has to fit inside them. We walk the roof, take cores at the low point, near a curb and in the open field, run a moisture survey and grade the roof. The report goes to the buyer with photographs, a cost range for repair and for replacement and a remaining-life estimate.
With that report, the buyer can ask for a price adjustment or a repair credit with evidence behind the request. Without it, the seller's number stands. A survey costs a small fraction of a roof, and it gives the negotiation a document with photographs and numbers in it. Our due diligence roof surveys are scoped to the closing calendar. If access is limited before closing, we start with a drone flight and an infrared pass, then confirm the worst areas with cores once the seller allows it. The report states what was seen, what was measured and what was not reachable, so the buyer knows where the remaining uncertainty sits.
What it costs: deferred repairs, the hold period and the reserve
The number an investor needs is the cost of getting the roof through the hold period. If the hold is three years, a roof graded repair may need only targeted fixes. If the hold is ten, a roof graded watch may need a replacement in year five. The survey gives both numbers, and the owner picks the path that fits the strategy.
Deferred repairs belong in the underwriting as dollars, not adjectives. A list of curbs to rebuild, drains to add and a pond to cure becomes a line in the capital plan. A roof with wet insulation across half the field becomes a replacement line, with a date. A REIT with a reserve policy can map each roof to the policy and show the board the remaining life of each one. Present the numbers three ways: a base case, a case with accelerated failure and a case with a coating or a recover extending life. The spread between them is the real risk, and a board can price it.
What the code sheet says: the numbers behind the underwriting
Idaho's statewide 2018 building and energy codes apply, along with the city's 115 mph wind design and 24 inch frost line. A replacement must meet those, and a recover must carry the added weight on top of the snow.
A deep, wet snow on a flat roof is a real load. If a building shows signs of past sag, the framing check goes on the survey as a priced line. A buyer who finds out after closing that a recover is not possible has just learned that the repair line was understated. Roof snow loads for a building are calculated from the ground snow load under the structural standard, and a building with rooftop units and parapets can see local drift loads well above the average. Those pockets are where the check starts.
Where it fails first: ponding, parapets and added units
Investor-owned buildings fail where nobody was watching: the pond that has stood since the last tenant, the parapet flashing that opened two winters ago, the rooftop unit a tenant added without notice. The survey finds all three because it looks at the drains, the walls and the curbs, not just the field.
Multi-tenant industrial and retail buildings carry the most added penetrations. Among the tilt-up flex and industrial buildings at Riverbend Commerce Park in Post Falls is a 50,000 square foot warehouse for up to five tenants, and a building like that needs a numbered roof diagram tied to its leases. Before closing, ask for the diagram or have it drawn. A diagram that shows who owns each unit lets the buyer sort out roof responsibility under the leases before it matters, and it gives the property manager a map on day one. We include one in every survey, with the cores marked and the moisture shaded.
Alternates: recover, coatings and a longer service term
Offer the investor the cost ladder. A repair now. A coating that extends life, if the insulation is dry. A roof recover and overlay if the framing allows. A full replacement. Each rung has a price, a life and a weather window, and the survey states which rungs the building can actually reach, since a coating or a recover that the insulation or the framing rules out should never appear in the underwriting as an option. A coating, for example, is only available when the insulation is dry and the membrane sound, and its window is late spring through early autumn. A recover is available when the framing and the old layers allow. Replacement is always available but needs the longest dry stretch.
The investor picks the rung that matches the hold. An owner who manages the buildings directly runs the same ranked list a property management company does, and an owner with a storm loss moves into insurance and restoration territory, where the file matters as much as the repair.
Schedule and snow window: a closing in winter, a roof in summer
A deal that closes in December gets its roof work in June. In the meantime, the survey identifies what must be done before snow loads the deck. The Rathdrum Prairie, from Rathdrum to Post Falls, shares a short dry window, and crews book early.
Hold points keep the work on track: deck inspection, insulation, flashings. Each is a few hours and a signature, and each catches the defect that would otherwise be buried. The investor sees the roof being built to the plan, and the file shows it.
Closeout: a file that survives the next sale
The owner receives photographs, core results, the roof diagram, the punch list and a maintenance calendar. When the building sells, the file goes with it, and the next buyer's diligence is shorter. A roof capital planning schedule feeds the budget for the next owner too.
Commercial Roofing Questions
How long does a roof survey take during due diligence?
A few days on site for most buildings, then the report. We schedule around the closing calendar. Access to the roof and the deck is the main constraint, so we ask for it early.
Can a survey support a price adjustment?
Yes. Cores, moisture readings, photographs and a cost range give the buyer evidence for a credit or a price change. We write the report so a lender or a buyer's counsel can follow it.
What if the roof is in the middle of its life?
Then the question is repair now and replace later, and we price both with dates. The dates matter as much as the dollars.
Do you survey several buildings in a portfolio purchase?
Yes. We rank every roof and give a combined capital line.
Does the 60 psf figure affect the underwriting?
It affects what a replacement or recover must carry. We check the framing and price any needed reinforcement. Saturated snow at about 20 pounds per cubic foot is the number behind that check.