Steel Building Construction All Risk Insurance (CAR/EAR): Coverage & Claims

Blue-gray industrial tone—a half-completed steel frame rising on concrete pad foundations, a lattice boom crane lifting a wide-flange beam into position, bundled columns and packaged components stacked on the ground, temporary hoardings around the site, overcast gray-blue sky, no text in frame.

A container of columns slips off the crane hook. A typhoon rips the roof sheeting off a half-built frame. A neighboring factory gets hit by falling steel. Who pays? If the project carries a proper steel building construction all risk insurance policy, the answer is the insurer—not the contractor's margin, not the owner's contingency, and not a silent dispute between subcontractors.

This guide focuses on one specific, time-bound product: the construction all-risk (CAR / EAR) policy that protects the steel building during the build. It is not the full-lifecycle insurance overview we cover elsewhere—steel building insurance spans property, liability, and business-interruption cover across the operating life of the asset. Here we stay on the construction phase: material damage to the frame, third-party liability to neighbors, delay in start-up cover, exclusions, and the claim path. Lenders almost always require this cover before they fund the first steel delivery.

CAR vs. EAR — What's the Difference?

Contractor's All Risks (CAR) is the standard builder's policy. It covers the contract works—installed steel, delivered materials, and temporary facilities—from the mobilization date to handover. Erection All Risks (EAR) is a specialized variant written specifically for the lifting and steel-assembly phase, where the dominant hazard is members swinging out of control, bolts slipping during alignment, or a partially erected frame losing stability under wind.

For a pre-engineered steel building, CAR and EAR are almost always combined into a single CAR/EAR policy because the erection phase is the highest-risk window. The policy can be placed by the owner as an Owner-Controlled Insurance Program (OCIP) or by the general contractor as a CCIP; the best practice is to name the owner, GC, subcontractors, and steel suppliers as joint insured parties so a subbie's mistake does not become a coverage gap.

Related risk-transfer instruments sit alongside it: a steel building performance bond guarantees contractual completion, and a steel building advance payment guarantee protects prepayments. Insurance and bonds do the opposite jobs—insurance restores lost value, bonds secure performance—but both are conditions of a funded steel project.

Table 1: CAR vs. EAR Coverage Comparison

Feature	CAR (Contractor's All Risks)	EAR (Erection All Risks)	Overlap?
Period	Mobilization to handover	Steel lifting / erection phase	Yes, combined policy
Material damage	Works, materials, temp facilities	Erected frame, lifted members	Yes
Natural perils	Storm, flood, earthquake	Storm during partial erection	Yes
Erection-specific	Limited	Member fall, erection error, frame instability	EAR-specific
Typical insureds	Owner + GC + subbies	Owner + GC + erection crew	Yes
Best suited for	Whole construction project	Heavy steel, long-span roof, crane runs	Often combined

Typical coverage scope; exact wordings vary by insurer and jurisdiction.

What CAR Covers — Material Damage & Third-Party Liability

A steel building construction all risk insurance policy has two core insuring agreements.

Material damage. The policy pays to repair or replace the works if an insured event damages them. This includes installed columns, beams, crane girders, and bracing; delivered but unerected steel stored on site; temporary offices, warehouses, and scaffolding; and, by endorsement, contractor's lifting equipment. Design files, drawings, and BIM models are usually sub-limited rather than covered at full value.

Third-party liability (TPL). The construction site is not a sealed box. A lifted column can swing into a neighboring roof; a falling bundle can injure a passerby; vibration from piling can crack an adjacent wall. TPL covers bodily injury and property damage to people outside the contract, including the legal defense costs and the judgment. Typical TPL limits run USD 1M–USD 5M (or the local-currency equivalent), and there is normally no deductible on the liability section.

Covered perils are broad: storm, rain, flood, lightning, earthquake, fire, explosion, collapse, theft from a secured site, and accidental human error during installation. The critical exclusion to remember is design error—a beam sized too small by the engineer is a professional-liability problem (E&O / PI cover), not a CAR problem.

For the financing side of a funded steel project, see steel building project financing; for when things go wrong on site, read steel construction dispute resolution; and for the payment mechanics that tie to insured milestones, see steel building payment milestones.

Exclusions & Delay in Start-Up (DSU)

Every steel building construction all risk insurance policy has a standard exclusions list, and reading it before signing is more valuable than reading the schedule of cover.

• Design errors and defects—covered under separate E&O / professional indemnity.
• War, strike, riot, and civil commotion—usually excluded; war cover is a separate, high-limit endorsement.
• Nuclear, chemical, and biological contamination—standard exclusion.
• Normal wear and tear, corrosion, and gradual deterioration—construction-phase cover is for sudden and unforeseen events, not aging.
• Contractor's own machinery breakdown—unless an equipment breakdown endorsement is added.
• Losses from knowingly non-compliant construction—intentional deviation from codes is not covered.

Delay in Start-Up (DSU) is the income-protection extension. If an insured event (a hurricane damages the frame, for example) pushes completion past the contractual date, DSU compensates the owner for lost revenue during the delay. It has a typical 14–30 day waiting period and an indemnity period of 90–180 days. DSU works alongside—but separately from—steel building liquidated damages delay claims: DSU pays the owner's lost profit; liquidated damages penalize the contractor. The two are not netted against each other.

Deductibles on material damage typically run USD 500–USD 2,500 per occurrence or 1–2% of the loss, whichever is higher; natural-peril deductibles (flood, earthquake) are often sub-limited or carry a higher excess. The standard FIDIC Silver Book EPC turnkey conditions set the contractual framework that most international CAR/EAR policies follow—see the FIDIC Silver Book reference.

For the money held back at the end of the contract, read steel building retention money final payment; for the contract clauses that interact with cover, see steel building contract review.

Table 2: Standard CAR Exclusions & Optional Extensions

Coverage Item	Standard Policy	Optional Extension?	Notes
Sudden material damage (storm, fire, fall)	Covered	—	Core cover
Third-party liability	Covered (to limit)	Higher limit available	Usually no deductible
Design error / defect	Excluded	E&O / PI separate policy	Not a CAR peril
Flood / earthquake	Covered (sub-limited)	Buy back full limit	Higher deductible in high-risk zones
Delay in Start-Up (DSU)	Excluded	Optional endorsement	14–30 day waiting period
Contractor's own equipment	Excluded	Equipment breakdown cover	Separate schedule
War / strike / riot	Excluded	War cover endorsement	High additional premium
Vibration / underpinning of neighbors	Often sub-limited	Optional extension	Watch for in urban sites

Typical wording; exact exclusions depend on the insurer's standard form.

Building a Steel Frame Worth $2M+ — Is It Actually Insured During Erection?

We help clients structure CAR/EAR policies: material damage cover matched to the contract value, third-party liability limits sized to the site, and DSU extensions so a hurricane delay does not wipe out the project margin.

Request a CAR Policy Review →

Claim Process — From Incident to Settlement

When an incident happens on a steel site, the first hours decide whether the claim pays smoothly.

Immediate response. Notify the insurer within 24–48 hours; silence at the start is the single most common reason for claim reduction. Secure the scene, photograph and video everything, and take immediate mitigating action—temporary bracing on a tilted column, tarpaulins over an exposed frame, shoring under a scoured footing. The policy requires the insured to prevent the loss from getting worse.

Loss adjustment. The insurer appoints a loss adjuster (surveyor) who inspects the site, reviews the construction contract, site diaries, photos, and test reports, and decides whether the loss is an insured peril. Adjusters compare repair cost against reinstatement cost; for steel frames the repair route usually wins because replacing an erected column is expensive and risky.

Settlement and subrogation. Once agreed, the insurer pays. If a third party caused the loss (a subcontractor's crane, a neighboring contractor's piling), the insurer steps into the insured's shoes and recovers the payout through subrogation. The most common disputes are whether the loss was an insured peril at all, and whether the standard should be repair or replacement value. For handover documentation that supports a clean claim, see steel building project handover documentation; for quality defects that blur the line between insurable loss and workmanship, read steel building quality claim.

For the step-by-step record, notice and documentation that turns a weather or erection loss into a settlement, our guide on the steel building insurance claims process walks through the notice window, the adjuster negotiation, and the repair-versus-replacement valuation that decides the payout.

Premium Calculation & Practical Tips

The premium for a steel building construction all risk insurance policy is built from three components.

Material damage premium is charged against the contract value, typically 0.2%–0.8% of the total insured amount for a standard steel warehouse or factory. Third-party liability is a fixed charge scaled to the chosen limit, roughly USD 2,000–USD 10,000 for a USD 1M–5M TPL. DSU cover is priced as a small percentage of the material damage premium plus the chosen delay period. All-in, the total CAR/EAR premium usually lands at 0.3%–1.0% of contract value.

Several levers reduce the premium without weakening cover: a methodical erection method statement with a lift-risk study, a higher voluntary deductible, a multi-project framework policy for repeat clients, and a documented site safety plan. Insurers load policies with undocumented risk; they discount ones they can see being managed.

Table 3: Typical CAR Premium Structure (USD)

Component	Typical Rate	Example for $2M Project	Notes
Material damage	0.2%–0.8% of contract value	$4,000–$16,000	Main premium
Third-party liability ($2M limit)	Flat fee	$1,500–$3,000	Scale with limit
DSU (90-day period)	Endorsement	$2,000–$5,000	Optional
War / strike cover (if taken)	Flat fee	$1,000–$4,000	Region-dependent
Total indicative premium	0.3%–1.0%	$6,000–$16,000	Excludes DSU

Indicative ranges based on typical Marsh / AIG-style broker quotations; actual rates depend on location, height, and duty cycle. See AIG Construction Insurance Solutions for insurer-side context.

For how insurance premiums sit inside the project budget, see steel building quote breakdown; for the commercial terms that interact with cover, read payment terms.

Conclusion

A steel building construction all risk insurance policy does three jobs at once: it covers material damage to the frame during erection, it protects the project from third-party claims, and—via DSU—it cushions the owner when an insured peril delays handover. Design errors sit outside CAR and need E&O; war, wear and tear, and contractor equipment breakdown are standard exclusions. CAR/EAR is not optional for financed steel projects—it is a condition precedent to the first steel being lifted, and the erection phase is where it earns its cost.

CAR/EAR That Matches Your Build Schedule — Not a Cookie-Cutter Policy.

We help structure construction all-risk cover: material damage sized to contract value, third-party liability limits matched to site risk, and DSU extensions so a weather delay does not sink the margin.

🏭 Explore: Steel Warehouse · Steel Factory

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About the Author

Senior Structural Engineer

With over 20 years of hands-on experience in steel structure design and prefabricated building engineering, our in-house senior structural engineer has personally contributed to more than 500 steel building projects—including warehouses, industrial factories, aircraft hangars, agricultural buildings, and commercial structures. The focus is on translating design codes such as AISC 360, ASCE 7, and Eurocode 3 into buildable, cost-effective steel solutions that balance structural performance, fabrication efficiency, and total project cost.

Learn more about our engineering team

Case Example

A typhoon-season erection in an anonymized coastal Southeast Asian port shows CAR/EAR cover earning its premium. The building was a pre-engineered warehouse of about 6,200 m² (67,000 sq ft) on a 30 m (100 ft) double span, at a contract value near USD 2.4M. Half the frame was up when a late-season storm brought sustained winds near 130 km/h (80 mph). The combined CAR/EAR policy named the owner, general contractor, and steel supplier as joint insureds, and a documented storm-watch bracing procedure had been filed before lifting began. Temporary bracing held the partial frame; only wall cladding suffered damage, valued at about USD 18,000. The loss adjuster settled in 21 days, and the optional delay-in-start-up endorsement compensated nine lost operating days. Completion assurance parallels sit in steel building performance bond; pre-storm site prep is in hurricane preparation.

Frequently Asked Questions

Q1: What is the difference between CAR and EAR insurance?

CAR (Contractor's All Risks) covers the works, materials, and temporary facilities during the whole construction period. EAR (Erection All Risks) is a specialized variant focused on the steel erection phase—lifting, bolting, and structural assembly. For steel buildings, the two are usually combined into a single CAR/EAR policy because the erection phase carries the highest member-fall and frame-instability risk.

Q2: Who should buy CAR insurance?

Either the owner (Owner-Controlled Insurance Program, OCIP) or the general contractor (CCIP) can place the policy. Best practice is to name the owner, GC, subcontractors, and steel suppliers as joint insured parties so a subbie's error does not become a coverage gap. Banks and lenders almost always require CAR/EAR cover as a condition of project financing.

Q3: What does CAR insurance exclude?

Standard exclusions include design errors (covered by a separate E&O / professional indemnity policy), war, strikes, nuclear and chemical contamination, normal wear and tear, and the contractor's own equipment breakdown. Flood and earthquake are usually covered but may carry higher deductibles or sub-limits depending on site location.

Q4: What is DSU cover?

Delay in Start-Up (DSU) is an optional extension that compensates the owner for lost revenue when an insured event—for example, a hurricane damaging the frame—delays completion. It typically carries a 14–30 day waiting period and a 90–180 day indemnity period. It pays the owner's lost profit; it sits alongside, but does not replace, liquidated damages owed by the contractor.

Q5: How much does CAR insurance cost?

Material damage premium runs about 0.2%–0.8% of the contract value. Third-party liability adds roughly USD 2,000–USD 10,000 depending on the limit chosen. For a USD 2M steel building, total CAR/EAR premium typically lands at USD 6,000–USD 16,000, plus DSU if that extension is added.

Reference Links

• FIDIC Silver Book — EPC Turnkey Contract — standard contractual framework that most international CAR/EAR policies follow.
• AIG Construction Insurance Solutions — insurer-side product context for material damage and third-party cover.