Utter, J. —
The trial court in this case awarded damages to a homeowners association against a builder-vendor for construction defects in common and limited common areas of a condominium complex. The action was brought more than 3 years after the builder-vendor sold the last condominium unit, and many of the units changed hands before suit was filed. The applicable statutes of limitation properly should have barred many of the plaintiffs' actions. We hold that the trial court incorrectly applied the discovery rule for determining when plaintiffs' causes of action accrued.
The trial court greatly extended the implied warranty of habitability beyond the contours defined by this court. The trial court also recognized a new cause of action to this jurisdiction in negligent construction. This court cannot allow sympathy for the plaintiffs to lead to the creation of a logically inconsistent and vague theory of recovery that fails to provide useful precedent. Accordingly, we reverse and remand.
Yarrowood is a condominium complex located in Belle-vue. One hundred forty-four of the 155 units have private decks. Because of the steep topography and siting, there are 32 entry walkways which traverse from the parking area to provide access to unit entrances. Twenty-three of these serve only one apartment each. The bulk of the areas at issue were these private decks and walkways.
[408]*408The Declaration of Condominium (as amended) provides that private decks off individual apartments are "limited common areas", to which the individual apartment owner has exclusive access. The individual homeowners are solely responsible for their maintenance. Certain access walkways are also limited common areas, although the Declaration of Condominium does not specify precisely which walkways. The trial court found all these areas were "common areas,” "regardless of the subclassification of the private decks as 'limited common areas'" (Finding of fact 15; Clerk's Papers, at 15) as that term is used in the Declaration of Condominium and by statute. See RCW 64.32.010(6)(b),1 (ll).2
The original developer, Ferguson Development Company and related corporate entities started work on the project in 1973. Ferguson intended to develop the complex in phases, and hired architect El Baylis to design the entire complex. After experimenting with various railing designs for the private decks and walkways, Ferguson adopted a wooden frame closed rail system. This involved the construction of a wall approximately 40 inches high, made of two-by-four studs enclosed on both sides with siding and gypsum board. The wall is capped by a wooden rail and joined at the bottom to the horizontal surface of the deck.
In May 1975, when Phase I (67 apartments) was partially constructed, Ferguson defaulted and Coldwell Banker took over. From that point, Coldwell Banker was the owner, developer, construction contractor and vendor of the apart[409]*409ment units at Yarrowood.
When Coldwell Banker took over the project it hired architect Baylis to inspect and assess the project. Baylis informed Coldwell Banker that the decks and balconies were not adequately flashed at wall and/or rail junctures. In at least one instance a deck had no way to drain and would probably rot. In September 1975, Baylis notified Coldwell Banker that standing water on the flat asphalt roof of the largest building in the complex would lead to problems unless corrected. In response and as leakage became apparent and complaints were made, Coldwell Banker took corrective steps to repair or replace each of the Phase I decks that were called to its attention. Nonetheless, the trial court found the repairs and other construction changes made were ineffective to eliminate all of the problems.
Coldwell Banker completed Phase I by mid-1976. The City of Bellevue Building Department issued a certificate of occupancy on June 10, 1976, although purchasers had occupied a number of units from late December 1975.
In March 1976, Coldwell Banker contracted with architect Baylis to prepare construction drawings for Phase II, which added an additional 88 apartment units. Coldwell Banker instructed Baylis to make design changes in the walkway and deck assemblies in an attempt to avoid the problems experienced in Phase I. Phase II construction began in 1976, and on September 15, 1977, Bellevue issued a final certificate of occupancy. The last unit was sold in February 1978, some 4 years and 9 months before the commencement of the lawsuit in November 1982.
Coldwell Banker turned over management of Yarrowood to the Board of Directors of the Yarrowood Homeowners Association (the Board) after substantially all of the units were sold. Following a short period in which Coldwell Banker acted as property manager, the Board hired a resident manager to handle complaints from homeowners, and to perform minor maintenance and repairs. The first manager served from early 1978 to 1980. During 1978 and 1979, he received complaints relating to 10 to 15 of the decks at [410]*410Yarrowood. Some of the decks had damage which was plainly visible from public areas such as the parking lot for one of the buildings.
By June 1979, at least one deck had so deteriorated that the homeowner asked the Board about having it rebuilt. In connection with this and other complaints being received, the Board contacted an attorney for advice on who was responsible for repairing the deteriorating decks. The Board described the problem to the attorney as a design defect. After reviewing the Declaration of Condominium, the attorney responded that in his view the responsibility for repair and maintenance of these limited common areas lay with the individual homeowners, rather than with the Board.
The Board relayed the attorney's advice to the homeowners, and took the position that these defects were not the Board's responsibility. Some of the Board members had initial leakage problems which Coldwell Banker had worked on. In fact, the majority of the nine members of the Board in the years 1979 and 1980 knew during or before their service on the Board of leakage problems on Yarrowood decks.
In November 1980, the Board contacted a second attorney for his opinion on repair responsibilities. This attorney advised if the problem was a construction defect then the Board, rather than the individual homeowners, should pursue claims against the developer on behalf of the common ownership. Upon receiving this advice, the Board specifically asked the homeowners to lodge their complaints with the Board's resident manager. A number of such complaints were formally registered before the next meeting, which took place on December 18, 1980.
In November 1982, the members of the Board filed suit in their representative capacities on behalf of both original and subsequent purchasers of affected units against Cold-well Banker, El Baylis, and Ferguson.3 The suit alleged [411]*411defendants were liable under theories of negligent construction, breach of express and implied warranties, misrepresentation, and violations of the Consumer Protection Act, RCW 19.86.
As of that time, 74 out of the 155 units had changed hands from the original purchasers to subsequent purchasers. By May 1984, the month of trial, the number of units owned by subsequent purchasers had risen to 81, constituting a majority of the units in the complex.
The trial court found plaintiffs' suit was timely brought within the applicable statute of limitations, reasoning that the claims accrued at the December 18, 1980 meeting, when the Board had notice that the deck and walkway problems were widespread throughout the project. The court found that
Although plaintiffs received some isolated complaints from unit owners of water leaks and stains with respect to the private decks attached to the unit, there was not a sufficient number of complaints or sufficient quality of the complaints received to indicate a project-wide problem with substantially all decks and the degree to which the decks were affected until December 1980.
Finding of fact 30; Clerk's Papers, at 20-21.
The court held there was no liability under the Washington Consumer Protection Act, nor under plaintiffs' theory of breach of express warranty or misrepresentation. Plaintiffs have not appealed those rulings.
The court noted that the applicable provisions of the uniform building code and industry standards required that the decks, balconies, walkways, ramps, and stairway structures be constructed in a watertight manner. It found, however, that the areas were not so constructed, and allowed water to penetrate from the time of original construction. These defects, both latent and patent, the court held, led to rotting and the substantial impairment of the structures.
[412]*412The court found that rotting conditions between initial occupancy and 1980 were known by the homeowners, who complained to Coldwell Banker, which responded to all complaints by making repairs and replacements. It found, however, that the complaints were not in every case communicated to the Board.
A determination was made by the court that the defective conditions were caused by negligent construction practices which left
the largest majority of the affected structures in Yarro-wood unfit for their ordinary and intended purpose and dangerous to use within a very short time after their construction. . . .
Although structurally safe for the buyer's intended purpose at the time of construction and initial purchase by individual owners, a number of the private decks, balconies and walkways became unsafe through the action of dry rot from water trapped as a result of construction defects.
Findings of fact 19, 20; Clerk's Papers, at 18. It held that both the original and subsequent purchasers could recover for the. entire damages to common areas and limited common areas under a negligence theory, and that the original owners could also recover under implied warranties of habitability.
Coldwell Banker, as owner-developer-builder-vendor of the complex, which was constructed for sale to the general public, was determined to owe a duty of proper construction, a duty which includes the nonnegligent construction of elements within the common and limited common areas. The court further held that no privity of contract need exist in order for Coldwell Banker to be liable for damages caused by negligent performance of its contractual duty.
Coldwell Banker was also held to have impliedly warranted to the original purchasers that the common and limited common areas were fit for their ordinary and intended purpose, that the applicable building code provisions were complied with and that the construction was performed in a proper and workmanlike manner with [413]*413respect to building methods, techniques, or materials used. The court concluded that Coldwell Banker breached the implied warranty of habitability (thus defined), and was liable to plaintiffs for damages sustained as a proximate result of this breach.
Of the $378,758 in damages awarded by the trial court, $87,680 represented repair costs to private decks which were limited common areas exclusive to units owned by subsequent purchasers. No separate finding was made with respect to walkways for which damages were awarded, but which serve secondary purchasers' units.
Three issues are raised on appeal: (1) whether the trial court correctly determined the time the plaintiffs' causes of action accrued for purposes of the discovery rule; (2) whether the court properly applied the implied warranty of habitability theory as developed by our courts; and (3) whether the trial court erred in recognizing a new cause of action in negligent construction.
Statute of Limitations
Coldwell Banker acknowledges the Board's standing to sue on behalf of two or more individual condominium owners with similar claims pursuant to RCW 64.32.240. That statute provides, in part:
Without limiting the rights of any apartment owner, actions may be brought as provided by law and by the rules of court by the manager or board of directors, in either case in the discretion of the board of directors, on behalf of two or more of the apartment owners, as their respective interests may appear, with respect to any cause of action relating to the common areas and facilities or more than one apartment. . . .
(Italics ours.) The Board has standing to sue on behalf of and as a surrogate for the individual homeowners. Coldwell Banker argues with merit that this statutory grant of standing does not accord the Board or the Association the status of a separate juristic entity. The Association is not incorporated. It has no life independent of the individual homeowners who are by statute and under the terms of the [414]*414Declaration of Condominium required to be members of the Association. The rights being asserted, and the claims being made, belong to the individual homeowners. As found by the trial court, the lawsuit was brought in the names of the nine then members of the Board of Directors of the Association in their representative capacities, not in the name of the Board or Association as a separate entity.
The trial court, however, determined that the claims asserted here accrued at the time the Board had notice that the deck and walkway problems were widespread throughout the project. Neither RCW 64.32.240 nor the discovery rule support such a conclusion. RCW 64.32-.240 authorizes the Board to bring suit on behalf of two or more apartment owners. There is no requirement that the majority or even that a substantial number of apartments be affected. The trial court's conclusion that, despite the plain meaning of the statute, the Board was required to wait to bring suit until "a sufficient number" of apartment owners were affected is unjustified.
A statute which is plain needs no construction. King Cy. v. Seattle, 70 Wn.2d 988, 425 P.2d 887 (1967). It is neither the function nor the prerogative of courts to modify legislative enactments. Anderson v. Seattle, 78 Wn.2d 201, 471 P.2d 87 (1970). The trial court's formulation of a requirement of a "sufficient number" of affected units is not supported by the statute and is unworkably vague. The Board's strategic decision to bring suit at the time that it did will not be aided by this court with a reading not sustained by the language or the spirit of RCW 64.32.240.
The trial court's application of the discovery rule is inconsistent with the analysis applied by this court in White v. Johns-Manville Corp., 103 Wn.2d 344, 348, 693 P.2d 687 (1985): "[A] cause of action accrues at the time the plaintiff knew or should have known all of the essential elements of the cause of action." Awareness of the essential elements of a cause of action and awareness that one has a cause of action are not necessarily the same, for purposes of a statute of limitation. Sahlie v. Johns-Manville Sales [415]*415Corp., 99 Wn.2d 550, 554, 663 P.2d 473 (1983). This court made that distinction in Sahlie to underscore our position that a cause of action accrues when a plaintiff discovers, or in the exercise of reasonable diligence, should have discovered, the elements of the cause of action, and not when the plaintiff realized that they had a legally cognizable injury.
The applicable statute of limitations in this lawsuit is 3 years from the date of discovery under RCW 4.16.080(2). That statute should operate, however, as of the time the homeowners actually knew or reasonably should have known of the defects that comprised the elements of their causes of action. The trial court acknowledged that many of the individual homeowners knew and complained of defects as early as 1976. The trial court found that between 1976 and 1980 the owners of 13 units were aware of damage that required repair. The Board was sufficiently concerned by June 1979 to consult a lawyer as to who had the responsibility to repair the deteriorating decks. In the face of this abundant evidence of actual notice to the Board and to the individual apartment owners, the trial court's conclusion that the cause of action did not accrue until December 1980 is unsupported by the record.
Implied Warranty op Habitability
The implied warranty of habitability in Washington is a limited one:
[W]hen a vendor-builder sells a new house to its first intended occupant, he impliedly warrants that the foundations supporting it are firm and secure and that the house is structurally safe for the buyer's intended purpose of living in it.
House v. Thornton, 76 Wn.2d 428, 436, 457 P.2d 199 (1969). House and progeny have been applied in this state to grant recovery to the first intended occupants for egregious, fundamental defects in homes which, as the name of the warranty indicates, render the houses unfit to be lived in. The plaintiffs in House contended with a house with a foundation so faulty that the basement, walls, floors and [416]*416foundation slipped and cracked, and the supporting terrain slid away from the foundation.
This court has not been anxious to extend the implied warranty of habitability beyond its present boundaries. Frickel v. Sunnyside Enters., 106 Wn.2d 714, 725 P.2d 422 (1986) (court declined to extend implied warranty of habitability to sale of apartment complex despite serious foundation defects and improper construction, where property was not built for resale and sales contract contained express disclaimers of such warranty).
Other cases in Washington brought under the implied warranty of habitability premise recovery upon proof of defects which profoundly compromise the essential nature of the subject property as a dwelling. Klos v. Gockel, 87 Wn.2d 567, 554 P.2d 1349 (1976) (recovery denied where patio and backyard were damaged by a mud slide and the settling of fill, but house itself suffered only minimal damage); Allen v. Anderson, 16 Wn. App. 446, 557 P.2d 24 (1976) (alleged foundation faults, cracks and bows in retaining walls, dismissed on other grounds); Gay v. Cornwall, 6 Wn. App. 595, 494 P.2d 1371 (1972) (leaks in roof, plumbing defective, sewer pipe dumped raw sewage into crawl space, furnace motor burned out, drain field washed away).
The doctrine of implied warranty of habitability imposes liability upon builder-vendors in favor of original purchasers of residential property for egregious defects in the fundamental structure of a home. The warranty does not provide recovery for defects in exterior, nonstructural elements adjacent to the dwelling unit. The instant case involves defects similar to those in Klos v. Gockel, supra. In Klos, a landslide caused damage to the plaintiff's patio, but not to the house itself. The trial court ruled that the slide, while not injuring the foundation, rendered the residence unfit for occupancy, "if not in terms of actual danger, then at least in terms of threatening one's peace of mind". Klos, at 569. This court overruled that holding, noting that the plaintiffs never moved out of the house and were still [417]*417occupying it at time of trial. Klos does not support an extension of the doctrine of implied warranty of habitability for mere defects in workmanship. The Klos court denied recovery to the plaintiffs, holding that:
The law of implied warranty is not broad enough to make the builder-vendor of a house absolutely liable for all mishaps occurring within the boundaries of the improved real property.
Klos, at 571-72.
In the case at bar, some of the damaged areas were decks, similar in use to the patio area in Klos. Others were walkways that may have comprised the sole means of access to the apartments, although the record fails to make this clear. Finding of fact 15; Clerk's Papers, at 15. As to the access walkways, one could plausibly argue that the defects occurred in an essential portion of the dwelling itself. Unfortunately, the record does not distinguish among the units, and there was no allegation that any apartment owner was prevented from using his or her unit because of the defects. Plaintiff homeowners who were not barred by the statute of limitations could plausibly maintain an action for breach of the implied warranty of habitability, where they were unable to enter their dwelling units safely. Such a defect could be said to render a home unit unfit for its intended purpose. Unfortunately, the record before this court is insufficient for purposes of making such a determination.
Negligent Construction
Currently, the State of Washington does not recognize a cause of action for negligent construction on behalf of individual homeowners. Beyond the terms expressed in the contract of sale, the only recognized duty owing from a builder-vendor of a newly completed residence to its first purchaser is that embodied in the implied warranty of habitability, which arises from the sale transaction. House v. Thornton, supra at 436. Plaintiff homeowners faced with losses that are not of their own making present a sympa[418]*418thetic case, and we understand the desire of the trial court to fashion a remedy. We must exercise caution, however, that we do not unduly upset the law upon which expectations are built and business is conducted.
The theory advanced by the trial court is a peculiar combination of tort and contract law, closely related to the tort law of products liability. Comment, Manufacturer's Liability to Remote Purchasers for "Economic Loss" Damages— Tort or Contract?, 114 U. Pa. L. Rev. 539 (1966). Dean Prosser characterized the law of products liability as a "hybrid, born of the illicit intercourse of tort and contract, unique in the law." W. Prosser, Torts 634 (4th ed. 1971).
Initially, plaintiffs who suffered personal injuries from defective products could only reach the manufacturer under warranty theories. Courts, however, had difficulty meshing the inapposite "intricacies of the law of sales," Prosser, The Assault Upon the Citadel, 69 Yale L.J. 1099 (1960), such as notice and privity, with the plight presented by injured consumers who did not have a direct contractual relationship with the manufacturer. Accordingly, the doctrine fell prey to logical difficulties inherent in this procrustean approach, which addressed problems of unsafe conduct with a legal theory premised on receiving the benefit of a bargain. Pennsylvania Glass Sand Corp. v. Caterpillar Tractor Co., 652 F.2d 1165, 1168-69 (3d Cir. 1981).
The first cases holding manufacturers liable for injuries caused by their products in the absence of privity of contract used a negligence theory. The landmark decision in this area was MacPherson v. Buick Motor Co., 217 N.Y. 382, 111 N.E. 1050 (1916) (Cardozo, J.). MacPherson has been accepted in every jurisdiction in the United States to provide a remedy to plaintiffs injured by manufactured items that are dangerous if negligently made. W. Prosser, Torts § 96, at 642-43 (4th ed. 1971). Courts reasoned that privity of contract should not stand as a bar to plaintiff consumers who suffered physical injury from a product negligently made.
As a matter of public policy, it is entirely reasonable to [419]*419expect manufacturers of goods for sale to the general public to assume responsibility for the safety of their product. In Seely v. White Motor Co., 63 Cal. 2d 9, 403 P.2d 145, 45 Cal. Rptr. 17 (1965), Justice Traynor denied recovery to a plaintiff who had pleaded lost profits as the only damages under a negligence theory. Justice Traynor stated at page 18:
The distinction that the law has drawn between tort recovery for physical injuries and warranty recovery for economic loss is not arbitrary and does not rest on the "luck" of one plaintiff in having an accident causing physical injury. The distinction rests, rather, on an understanding of the nature of the responsibility a manufacturer must undertake in distributing his products. He can appropriately be held liable for physical injuries caused by defects by requiring his goods to match a standard of safety defined in terms of conditions that create unreasonable risks of harm. He cannot be held for the level of performance of his products in the consumer's business unless he agrees that the product was designed to meet the consumer's demands. A consumer should not be charged at the will of the manufacturer with bearing the risk of physical injury when he buys a product on the market. He can, however, be fairly charged with the risk that the product will not match his economic expectations unless the manufacturer agrees that it will. . . .
This court has acknowledged the extreme confusion in the development of our own case law, and we have, in the past, allowed recovery under a negligence theory for lost profits standing alone (upon proof of causation and breach of duty). Berg v. General Motors Corp., 87 Wn.2d 584, 591, 555 P.2d 818 (1976). In Berg, this court noted the convoluted history of products liability doctrine, conceded that "[cjourts are anxious to find some legal theory sufficient to protect the public interest", Berg, at 593, and made a policy-based decision to allow damages to a commercial fisherman for the anticipated value of a fish catch that was lost when his boat was laid up for repairs of defendant manufacturer's negligently built motor.
[420]*420The instant case, however, presents a leap beyond the theory applied in Berg. The plaintiffs have alleged no injury beyond the affected areas themselves, and no damages beyond the cost of repair. In its effort to find recovery for the plaintiffs, the trial court formulated a theory of recovery in negligence that overlooks the intricacies and logical inconsistencies inherent in the approach.
Commentators and courts faced with this issue have found it necessary to distinguish economic loss from physical harm or property damage. The distinction is usually drawn depending on the nature of the defect and the manner in which the damage occurred. Defects of quality are evidenced by internal deterioration, and designated as economic loss, while loss stemming from defects that cause accidents involving violence or collision with external objects is treated as physical injury. Pennsylvania Glass Sand, at 1169-70. See Note, Economic Loss in Products Liability Jurisprudence, 66 Colum. L. Rev. 917, 918 (1966); see also Jones & Laughlin Steel Corp. v. Johns-Manville Sales Corp., 626 F.2d 280 (3d Cir. 1980).
Tort law has traditionally redressed injuries properly classified as physical harm. W. Prosser, Torts § 101, at 665 (4th ed. 1971). Tort law is concerned with the obligations imposed by law, rather than by bargain. As a matter of public policy, it is appropriate that a duty be imposed on manufacturers to produce products that will not unreasonably endanger the safety and health of the public, whether the ultimate impact of the danger is suffered by people, other property, or on the product itself. In contrast, contract law protects expectation interests, and provides an appropriate set of rules when an individual bargains for a product of particular quality or for a particular use.
In cases such as the present one where only the defective product is damaged, the court should identify whether the particular injury amounts to economic loss or physical damage. In drawing the distinction, the determinative factor should not be the items for which damages are sought, such as repair costs. Rather, the line between tort and con[421]*421tract must be drawn by analyzing interrelated factors such as the nature of the defect, the type of risk, and the manner in which the injury arose. These factors bear directly on whether the safety-insurance policy of tort law or the expectation-bargain protection policy of warranty law is most applicable to the claim in question. Pennsylvania Glass Sand, at 1173.
The nature of the defect here was that the decks and walkways were not of the quality desired by the buyers. The "injury" or damage suffered was that the decks themselves deteriorated, not through accident or violent occurrence, but through exposure to the weather.
The plaintiffs advanced theories of recovery under the Consumer Protection Act, RCW 19.86, under a theory of misrepresentation, and under the express warranties contained in the contract of sale with the builder-vendor. The trial court correctly held that recovery was not available under any of these theories, and plaintiffs have not appealed those rulings. This is unremarkable, in that the express terms of the contract with the builder-vendor delegated the risks among the parties, and formed part of the basis of their bargain.
In its search to provide relief where the contract did not, the trial court stretched the implied warranty of habitability beyond recognition to grant recovery to original purchasers of condominium units. The trial court then accepted the plaintiffs' invitation to recognize a poorly reasoned cause of action to grant recovery to subsequent purchasers. The dangers in creating such unreasoned precedent are manifest.
Imposition of tort liability upon the builder-vendors would require them to become the guarantors of the complete satisfaction of future purchasers. A builder-vendor could contract to limit liability for defects with the original purchaser and then find themselves liable for the same defects to a future purchaser with whom they had absolutely no contact. The trial court's formulation makes no distinction between subsequent purchasers who may have [422]*422known nothing of the potential deterioration of the decks, and those buyers who may have been able to see the flaking observable to the naked eye from the exhibits before the court. The latter buyers may well have been able to account for the defects with an adjustment to the purchase price. As to such buyers, any recovery from the court would be a pure windfall.
There is nothing in the trial court's disposition of the case to limit liability for the same defects in the same units to future subsequent purchasers. In a commodity such as condominiums, it is not unthinkable that speculators could sell and resell the property rapidly enough to escape the strictures of the statute of limitations. This court will not sanction such result-oriented jurisprudence, particularly in an area of the law so vitally enmeshed in our economy and dependent on settled expectations as is the construction business. We decline to recognize a cause of action in negligent construction.
We reverse and remand to the trial court to determine, consistent with this opinion, (1) which, if any, of the plaintiffs were not barred by the statute of limitations, and (2) which units owned by such plaintiffs had walkways so impaired that the sole means of access to the unit was dangerous to negotiate.
Pearson, C.J., and Brachtenbach, Dolliver, Andersen, Goodloe, and Durham, JJ., concur.