Minor patching of leaks, clearing of roof drains, and routine preventive maintenance of the existing roof system.
Key Takeaways
| Lease Type | Recoverable? | Controllable? |
|---|---|---|
| NNN | Yes | Yes |
| Modified Gross | Yes | Yes |
| Full-Service Gross | No | Yes |
CapEx Risk: This line item is commonly used to disguise capital expenditures as operating expenses. Verify all invoices against GAAP standards.
Approximate budget share: 2-4% of total CAM pool.
Roof maintenance covers the routine upkeep needed to preserve a functioning roof: clearing drains and gutters, patching isolated leaks, resealing flashing, and applying preventive coatings. These are true operating expenses and are generally recoverable from tenants in NNN and many modified gross leases. The line item becomes one of the highest capex-disguise risks in commercial real estate when a landlord replaces the entire roof membrane, structural deck, or insulation system and bills it as a maintenance expense rather than a capital improvement. A full roof replacement restores the asset to like-new condition and extends its useful life by decades. Under GAAP and IRS guidance, that is a capital expenditure. The practical test is straightforward: if a contractor performed a tear-off and installed a new membrane, it is capital regardless of how the landlord labeled it on the reconciliation statement. Where the lease permits amortization of capital improvements into CAM, the landlord may pass through only the annual amortized portion calculated over the roof's remaining useful life. Expensing the full replacement cost in a single year is a textbook overcharge.
Overcharge Risk
$3,000-$18,000/year
typical annual overcharge when this line item is disputed
A full roof membrane replacement due to age-related deterioration is billed as routine maintenance, passing the entire replacement cost through CAM in a single year.
This line item is commonly used to disguise capital expenditures as operating expenses. Capital expenditures must be excluded from CAM or amortized over their useful life per GAAP. If you see unusually high or one-time charges in this category, request all invoices and scope-of-work documentation before paying.
| Legitimate Charge | Suspicious Charge |
|---|---|
| Drain cleaning, minor patching, and flashing sealant on an existing functional roof | "Tear-off and replacement," "new membrane installation," or "re-roofing" appearing as a maintenance line item |
| Roof maintenance costs consistent with prior year history and building age | Roof costs that are 10x or more than prior years, occurring late in the roof's expected service life |
| Capital improvement amortized into CAM at the lease-permitted annual fraction | Full roof replacement cost billed entirely in one year without amortization |
| Structural deck repairs excluded from tenant CAM responsibility | "Deck repair" or "structural roofing" labeled under routine maintenance category |
Demand the landlord pay for all structural roofing components. Routine maintenance (patching, drain clearing) is a CAM expense; full membrane replacement is a capital expenditure. If your lease is a NNN lease, challenge the landlord's pass-through of full replacement costs and demand amortization over the roof's remaining useful life.
Check Your Roof Maintenance & Repair Charges
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