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The Insurance Gap That's Holding Prefab Back

General

Admin

9/1/20263 min read

a magnifying glass sitting on top of a piece of paper
a magnifying glass sitting on top of a piece of paper

Prefab Insurance And What Needs to Change Now

Talk to any serious player in the North American prefab industry: manufacturer, developer, lender, or government housing agency — and at some point, the conversation will land on the same obstacle. Insurance. Not the cost of insuring a finished prefab home (though that has its own complications). The deeper challenge: the coverage gaps, the actuarial blind spots, and the outdated underwriting frameworks that are slowing the deployment of factory-built housing at exactly the moment when North America needs more of it.

THE THREE INSURANCE GAPS THAT MATTER MOST

Gap 1: The Transit Void

A modular home is manufactured, loaded onto a transport rig, and driven across multiple jurisdictions to its destination. During that journey, it passes through a legal gray zone. The manufacturer's premises liability ends when the modules leave the factory. The buyer's homeowner policy doesn't begin until the home is placed and insured as real property. The transport company's cargo insurance covers the vehicle, not the contents.

The result: the modules — which may represent $300,000–$800,000 in finished goods, travel without adequate coverage. A bridge strike, an overpass miscalculation, or a transport accident can result in a total loss with no clear insurance recovery path.

The fix is straightforward: standardized builder's risk policies for modular construction need to explicitly cover the transit phase. Some specialty insurers offer this; it is not yet standard market practice.

Gap 2: The Assembly Phase Ambiguity

Once modules arrive on site, a new gap opens. The assembly crew is connecting modules, making electrical and plumbing inter-connections, finishing the exterior envelope. During this phase; which can last from days to several weeks — the home is partially complete, partially exposed, and partially occupied by tradespeople. Standard builder's risk policies often have ambiguous language about partially assembled modular structures. Insurers who are not familiar with the modular process may deny claims that arise during assembly on the grounds that the structure was "not yet a completed building." Modular-specific builder's risk policies, which explicitly cover the assembly phase and define completion milestones; are available but not widely marketed.

Gap 3: The Completed Home Underwriting Problem

When a buyer goes to insure their completed modular home, they often encounter one of two problems: either their insurer declines the property as outside their standard underwriting criteria, or the insurer quotes a rate that treats the home as if it were a manufactured/mobile home — a category with historically higher claims frequency. For a CSA-certified modular home in Canada, or an IBC-compliant modular home in the US, this is actuarially inaccurate. The data does not support the surcharge. But insurance pricing is driven by historical claims data, and the modular housing segment has not historically been large enough to generate a robust independent actuarial dataset.

WHAT NEEDS TO CHANGE: A POLICY AGENDA FOR THE INSURANCE INDUSTRY

1. Develop modular-specific underwriting guidelines. The Insurance Bureau of Canada and the American Property Casualty Insurance Association need to develop and publish underwriting guidance that distinguishes clearly between modular (code-built, permanent foundation) and manufactured (HUD code, personal property) housing. This single clarification would dramatically improve market access for prefab buyers.

2. Create shared data pools for modular claims. The industry is not large enough in any single market for individual insurers to build reliable actuarial tables. A shared (anonymized) claims data pool, similar to those that exist for other specialty property classes; would give underwriters the data they need to price accurately and competitively.

3. Standardize transit and assembly coverage. A model policy form for modular construction: covering manufacturing, transit, assembly, and completion — needs to be developed and endorsed by major commercial insurers. Some specialty markets in London (Lloyd's) and the US surplus lines market already offer versions of this. It needs to become a standard commercial product.

4. Government support for pilot programs. In jurisdictions where government agencies are procuring modular housing at scale (Ontario, BC, Alberta, California), the procurement agencies should require demonstration of appropriate insurance coverage from manufacturers, effectively establishing minimum standards through purchasing power.

FOR HOMEOWNERS AND BUILDERS: WHAT TO DO NOW

Do not assume that your standard builder's risk or homeowner policy adequately covers a modular build. Before you sign with a manufacturer, work with an insurance broker who has specific experience with modular construction. Ask them directly:

- Does it cover the assembly phase?

- How does completion get defined in this policy?

-Does this policy cover the home during factory transit?

- Will the completed home qualify for standard homeowner's insurance through your company?

Getting clear answers to these questions before you break ground is far less painful than discovering the gaps after a loss.

HOW PREFABIQ HELPS

PrefabIQ's Document Hub and Stakeholder Hub allow builders and owners to maintain organized, accessible records of all insurance documentation — policy certificates, coverage start dates, assembly phase milestones, and completion certifications. In the event of a claim, having this documentation instantly retrievable can be the difference between a quick resolution and a protracted dispute.

The insurance gap is not an unsolvable problem. It is a market gap waiting to be filled; by progressive insurers, by informed regulators, and by an industry that is growing fast enough to finally have the data to prove its case. The prefab sector should be making the argument loudly. The math is on our side.