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California Supreme Court Imposes Strict Liability on Defective Components Installed in Tract Homes


December 16, 2002


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By Daven G. Lowhurst
Thelen Reid Brown Raysman & Steiner LLP

It has long been the rule in California that the developer of mass-produced (tract) homes or condominiums can be held strictly liable for construction defects. Tract housing has been viewed as a "product" for strict products liability purposes, and the developer that supplies such housing has been treated no differently than the manufacturer or supplier of other mass-produced products. However, there was uncertainty whether manufacturers of components installed in tract housing were subject to strict liability because the state's appellate courts had reached opposite conclusions.

The California Supreme Court has resolved the conflict by ruling that a manufacturer of defective windows installed in a mass-produced home can be held strictly liable for resulting physical damage to other parts of the house. In so ruling, the court examined the interplay between a strict products liability claim and the bar to recovery imposed by the economic loss rule. Jimenez v. Superior Court, __ Cal.4th __, __ Cal.Rptr.2d ___, 2002 DJDAR 13639 (December 5, 2002).


The Ruling

Owners of tract homes in a development sued for damage to parts of their homes. They asserted a strict liability claim against two manufacturers of windows that allegedly damaged stucco, insulation, framing, drywall, paint, floor coverings and other parts of their homes. The trial court, on a motion for summary adjudication, dismissed the strict liability claim. But, the Court of Appeal reversed, holding that a manufacturer of a defective component installed in a mass-produced home can be strictly liable for damage to other parts of the house.

The Supreme Court affirmed. It found that the policies underlying strict liability against manufacturers and suppliers of complete products apply equally to manufacturers and suppliers of components installed in mass-produced homes. The court rejected the manufacturers' argument that strict liability was not available because the manufacturers supplied only component parts of mass-produced homes rather than the completed homes themselves.

The court then addressed the extent to which a strict liability recovery could be barred by the economic loss rule. In essence, the economic loss rule precludes a tort recovery when the damage is to the defective product itself. In such cases, the right to compensation is governed by the law of contractual warranty rather than tort law. Here, the window manufacturers argued that there could be no tort liability because the "product" at issue was the entire home and that, therefore, damage to the other components resulting from the allegedly defective windows was damage to the product itself.

The Supreme Court rejected this argument, explaining that a manufacturer's duty to prevent property damage does not end simply because the product has been incorporated into a larger product. Because the window manufacturers were not able to rule out the possibility that the windows caused damage to other parts of the homes, it was error for the trial court to dismiss the strict liability claim.


The Implications

Jimenez provides guidance on several important issues but also leaves several issues unresolved.

First, the ruling on strict liability means that homeowners suing a manufacturer for producing a defective component are not required to prove negligence, i.e., that the damage to their homes was caused by the defendant's failure to exercise reasonable care in the design or manufacture of the product. Rather, they may recover in strict liability by proving that the product was defective when it left the factory and that the defect caused the damage.

Second, the decision is clear that strict liability applies to "the manufacturers of component parts, here windows, that are installed in mass-produced homes.…" But what products or materials will qualify as "component parts" subject to strict liability is not well-defined in Jimenez. For now, litigants will have to look to prior decisional law to assess whether a qualifying "component" is involved.

Third, while the court focused on component manufacturers, the court's discussion of the policies underlying strict products liability suggests that the same rule will apply to defendants who supply defective components to the jobsite, even if they did not manufacture the components.

Fourth, the fact that a product is shipped in parts and assembled and installed by others likely will not avoid strict liability unless the product is substantially changed before it reaches the user. As the court explained: "The issue is not whether the product was sold fully assembled or in parts but rather whether the defect… existed when the windows left the manufacturers' control."

Fifth, the court appears to have gone out of its way to limit its ruling to defective windows that cause damage to other parts of the home, and little guidance is provided as to what other housing components are subject to the economic loss rule. Further, the majority decision expressly left open the question of "whether defective raw materials should be treated in the same manner as component parts…" (although a concurring and dissenting opinion by Justice Brown questions how raw materials could be excluded from the court's holding, given the expansive definition of "product").

Further, having acknowledged that application of the economic loss rule requires that "we must first determine what the product at issue is" (since there can be no tort recovery for damage to the defective product itself), the court offers little guidance outside the context of windows. Indeed, the majority decision expressly left open the question of "whether there may be situations in which the economic loss rule would bar recovery for damages that a defective component part causes to other portions of the finished product of which it is a part."

Having left this issue open in the majority opinion she authored, Justice Kennard wrote a concurring opinion to explain her view that even when one component damages another component of the same, larger product, tort recovery should be denied when the defective component has been so "integrated" into the larger product that the defective component has lost its "separate identity." Using this analytical framework, Justice Kennard concludes that "windows may be regarded as a distinct product for purposes of the economic loss rule" because they can be readily removed from one home and installed in another home.

Thus, tort recoveries in construction or product liability actions may hinge on what the relevant "product" is determined to be and whether it has been so integrated into a larger product that the component has lost its separate identity. One factor in this analysis may be the ease with which the component can be removed from the larger product and reinstalled in another product. This issue is likely to become the focal point of many tort claims based on defective components installed in larger products.

In sum, Jimenez resolves a conflict in the appellate courts by ruling that strict products liability applies to defective windows installed in tract housing. It also affirms the viability of the economic loss rule as a limitation on tort liability. However, the Supreme Court left many issues unresolved, virtually ensuring considerable legal debate to establish the boundaries of both the strict liability doctrine and the economic loss rule.


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For more information about the issues covered in this report, please contact Daven G. Lowhurst in our San Francisco office at 415-369-7270 or at dglowhurst@thelen.com or contact your Thelen attorney. For more information about Thelen's Construction and Government Contracts Department, click here.






©2002 Thelen Reid Brown Raysman & Steiner LLP


More than 500 online news and legal reports on construction law, including claims, payment remedies, damages, government contracting, insurance, building codes, licensing, technology, arbitration, engineering, architecture, infrastructure

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