Whether the Owner or the Contractor pays for weather delays on a commercial construction project comes down to four specific contract provisions: the force majeure definition, the excusable versus compensable delay distinction, the notice requirement window, and the liquidated damages clause. Most owners sign contracts that address all four without fully understanding how they interact. Those four clauses, working together, determine whether a weather event adds cost to your project or just extends the schedule.
Four Contract Clauses That Decide Who Absorbs Weather Delay Costs
These four provisions don't operate independently. A strong force majeure clause can be rendered meaningless if the Contractor misses a notice deadline. A liquidated damages clause keeps running if a time extension request gets denied for lack of documentation. How those clauses interact is where most of the disputes come from.
Standard contracts like the AIA A201-2017 General Conditions of the Contract for Construction address all four areas. Section 8.3 covers delays and extensions of time. Section 15.1.3 covers claims and disputes, including notice requirements. But referencing "standard AIA language" as if it settles everything is a common mistake. The specific language in your project's contract controls, and that language is negotiable before you sign.
What Your Force Majeure Clause Covers
Force majeure addresses events beyond either party's control that make performance impossible or impractical. Owners tend to assume this clause covers any bad weather. It usually doesn't.
The critical qualifier most owners miss is the word "abnormal" or "unprecedented." Most force majeure clauses require weather conditions that fall outside historical norms for the project's location. A cold snap in January in mid-Michigan doesn't meet that threshold. NOAA's 30-year climate normals (the 1991-2020 dataset) document average freeze days, snowfall totals, and precipitation norms across the region. Three days of lake-effect snow in November is well within those documented norms. It may slow down a project, but it's not unprecedented.
What might qualify? A historically rare ice storm that shuts down an entire region for two weeks, or sustained conditions that exceed recorded averages by a wide margin.
AIA A201-2017 Section 8.3 addresses "adverse weather conditions not reasonably anticipatable" as a basis for time extensions, but it doesn't automatically classify all weather events as force majeure.
One negotiation point worth raising before you sign: define "abnormal weather" by reference to NOAA historical averages for the project's specific location. This removes a lot of the ambiguity, though you'll still need your attorney to review the specific language.
Excusable Delays Give the Contractor Time. Compensable Delays Give Them Money.
This is the distinction most owners don't understand until a delay claim arrives, and by then the contract language has already decided the outcome.
An excusable delay means the Contractor gets more time to finish without paying liquidated damages, but absorbs its own costs. Labor standby, equipment rental, extended general conditions: those stay on the Contractor's side of the ledger. The schedule extends, but the Owner's direct costs don't increase.
A compensable delay means the Contractor gets both more time and additional payment from the Owner. Weather delays are almost never compensable on their own. But they can become partially compensable when the Owner's actions extended the weather exposure window.
Consider a labeled hypothetical: a foundation pour is scheduled for October. The Owner delays permit approvals, pushing that work into December. The weather exposure that results wasn't part of the original schedule risk. The Contractor has a reasonable argument that the delay is at least partially compensable, because the Owner's decision moved weather-sensitive work into a more vulnerable window.
Contract type matters here too. Under a lump-sum contract, the Contractor typically absorbs excusable delay costs. Under a Guaranteed Maximum Price (GMP) contract, the treatment depends on how contingency is structured and what the contract says about weather-related cost overruns. Worth noting: plenty of contractors who skip walking owners through these distinctions still deliver good projects. The conversation tilts the odds, not guarantees the outcome.
Working with a contractor who explains these distinctions before the project starts is one of the more practical ways to protect your budget. That's part of how Wolgast approaches preconstruction with commercial owners.
Missing the Notice Window Voids Your Right to Contest a Delay Claim
Notice requirements protect both parties. The Contractor must document delays promptly. The Owner has the right to investigate and respond.
Most standard contracts require the Contractor to submit written notice of a weather delay within 48 to 72 hours of the event. Both AIA A201-2017 and ConsensusDocs 200 include notice provisions in this range. Miss that window, and the Contractor may lose the right to a time extension.
The owner-side mistake that's equally common: most owners don't realize they also have a notice obligation when they want to dispute a delay claim. Silence can be interpreted as acceptance. If a delay claim arrives and you don't respond in writing within the contract's specified window, you may have weakened your ability to contest it later.
A three-day lake-effect snow event halts exterior work on a commercial project in November. The Contractor documents the weather internally but doesn't submit written notice until the following month, bundled into a change order package. The contract's 72-hour window has passed. The Owner has grounds to contest the time extension claim, but only if they respond in writing promptly when the late claim arrives.
Batch-submitted delay claims at the end of a project are more common than they should be. Owners can push back when notice requirements weren't followed, but they need their own documentation to do it.
Practical step: maintain a contemporaneous weather log independently. Record the date, conditions, and what work was affected. When a delay claim arrives weeks later, you'll have your own record to compare against. This is also where unexpected fees in your construction budget tend to surface.
Liquidated Damages Clauses Don't Disappear When Weather Delays Occur
A liquidated damages clause sets a pre-agreed daily penalty for missing the contract completion date. It compensates the Owner for losses without requiring proof of actual damages. And it stays in force even when weather delays occur, unless the contract explicitly grants a time extension that pushes the completion date.
If a Contractor claims a weather delay but failed to submit proper notice, the time extension may be denied. The liquidated damages clock keeps running. If the Contractor properly documents and submits a weather delay claim and the Owner grants a time extension, the completion date shifts and liquidated damages don't apply to that extended period.
Make sure the contract specifies that time extensions for weather delays are the exclusive remedy. That means the Contractor gets schedule relief but not additional compensation, unless the delay is also compensable under the framework above.
Design-Build and Construction Management delivery methods handle this differently because risk allocation changes with the delivery method. That's worth sorting out during preconstruction. For more on financial risks in construction contracts, lien exposure is another area where contract language creates surprises.
Three Things to Negotiate Before You Sign
The best time to address weather delay risk is before the contract is signed. These three provisions are worth raising on any commercial project, and they're especially relevant where freeze-thaw cycles run from roughly November through March and spring mud season can affect site access well into April.
- Weather float days. Negotiate a defined number of weather days built into the project schedule upfront. This is common on northern-climate projects and removes ambiguity about what counts as a delay versus expected weather. If the schedule already accounts for a reasonable number of lost weather days, the threshold for a delay claim goes up.
- Notice window length. Push for a longer notice window (5 to 7 business days rather than 48 hours) if the project involves complex documentation requirements. Either way, make sure the window works for both parties.
- Documentation requirements. Require the Contractor to maintain a daily weather log tied to NOAA data for the project's specific location. This gives both parties a shared factual baseline and reduces the disputes that make weather delay claims expensive.
A good contractor will help you think through these before the contract is finalized. That's part of what the preconstruction phase is for.
Frequently Asked Questions
Does a lump-sum contract protect me from weather delay costs?
A lump-sum contract shifts most weather delay costs to the Contractor, but it doesn't eliminate them entirely. If the Contractor properly documents an excusable delay and meets the notice requirements, they can still get a time extension. That may affect your project timeline even if it doesn't add to your direct costs.
Can a Contractor submit a weather delay claim weeks after the event?
It depends on the contract's notice requirements. Most standard contracts require written notice within 48 to 72 hours of the delay event. If the Contractor missed that window, you have grounds to contest the claim. But you need to act promptly and in writing when the claim arrives.
What if the weather was bad but work could have continued indoors?
This is one of the most common disputes in commercial construction. If interior work was available and the Contractor chose not to proceed, a weather delay claim for that period is contestable. Your contract should specify whether delays apply to the overall project schedule or only to the specific work that was weather-affected.
Does a standard AIA contract protect me from weather delay disputes?
AIA A201-2017 provides a framework for excusable delays and notice requirements, but it doesn't resolve every dispute automatically. The standard language still requires "adverse weather conditions not reasonably anticipatable," and what counts as unanticipated is exactly what most disputes are about. Negotiating specific definitions before signing matters more than relying on the standard form.
Is a weather delay the same as a force majeure event?
Not necessarily. Force majeure typically requires conditions that are truly extraordinary, well outside historical norms. Most weather delays in commercial construction are handled under the excusable delay provisions of the contract, not force majeure. The distinction matters because force majeure clauses often suspend both parties' obligations, while excusable delay provisions only adjust the schedule.
Published August 2026 • Last reviewed August 2026