Ruks Konsult and Construction vs. Adworld Sign and Advertising Corporation

Joint tortfeasors whose successive or concurrent negligent acts combine as the direct and proximate cause of a single injury are solidarily liable for the entire damage under Article 2194 of the Civil Code, even where the degree of negligence varies between them, provided each act is an efficient cause without which the injury would not have occurred.

Transworld Media Ads, Inc. owned a billboard structure situated adjacent to a billboard owned by Adworld Sign and Advertising Corporation along EDSA. Ruks Konsult and Construction had entered into a contract with Transworld to construct the subject billboard. On August 11, 2003, Transworld's billboard collapsed during strong winds, crashing into and damaging Adworld's adjacent structure. Prior to the collapse, both Transworld and Ruks were aware that the foundation supporting the billboard was weak and inadequate, yet neither undertook remedial measures to reinforce the structure.

• The Collapse: On August 11, 2003, a billboard structure owned by Transworld and located at EDSA Tulay, Guadalupe, Barangka Mandaluyong collapsed during extraordinarily strong winds, crashing into and damaging an adjacent 75 ft. x 60 ft. billboard structure owned by Adworld. The impact misaligned Adworld's billboard and impaired its foundation.

• Demand for Payment: On August 19, 2003, Adworld sent Transworld and Comark International Corporation (the advertiser using Transworld's billboard) a letter demanding payment for repairs totaling ₱474,204.00, comprising ₱281,204.00 for materials, ₱72,000.00 for labor, and ₱121,000.00 for loss of rental income. Transworld replied on August 29, 2003, admitting the damage but refusing payment, attributing the collapse to force majeure.

• Construction Contract: Ruks Konsult and Construction admitted entering into a contract with Transworld to construct the collapsed billboard structure. However, Ruks claimed that an existing foundation was already in place when it commenced work, and that it merely completed the upper structure according to the contract terms.

• Negligent Construction: The RTC found that Transworld initially constructed the lower structure of its billboard without proper foundation. Ruks, despite knowing that the lower structure lacked adequate columns and pedestals for support, proceeded to install and finish the upper structure merely assuming that Transworld would reinforce the weak foundation. Both parties were fully aware of the structural inadequacy yet neither took positive steps to remedy the situation.

• Procedural Posture: Transworld's separate appeal to the Supreme Court (G.R. No. 197601) was dismissed for failure to file the petition within the reglementary period, and a subsequent petition (G.R. No. 205120) was denied outright as Transworld was bound by the dismissal of its first petition.

• Denial of Negligence: Ruks maintained that it could not be held liable for the collapse because it merely finished the billboard structure according to the terms of its contract with Transworld, claiming that an existing foundation was already present when it commenced construction.

• Causation: Petitioner argued that the collapse was caused by extraordinarily strong winds amounting to force majeure, not by any defect in construction, and that Transworld's refusal to pay Adworld did not justify imposing liability on Ruks.

• Concurrent Negligence: Adworld argued that both Transworld and Ruks were negligent—the former for failing to ensure compliance with approved plans and specifications, and the latter for continuing construction despite knowledge of the inadequate foundation.

• Solidary Liability: Respondent maintained that the successive negligent acts of Transworld and Ruks were the direct and proximate cause of the damage, rendering them joint tortfeasors solidarily liable under Article 2194 of the Civil Code.

• Negligence and Proximate Cause: Whether the Court of Appeals correctly affirmed the finding that Ruks was negligent in constructing the billboard and that such negligence was a direct and proximate cause of the damage to Adworld's property.

• Solidary Liability: Whether Ruks is jointly and severally liable with Transworld for the damages sustained by Adworld.

• Negligence and Proximate Cause: The finding of negligence was correctly affirmed. Ruks proceeded to install and finish the billboard's upper structure despite actual knowledge that the lower structure lacked adequate columns and pedestals for support, merely assuming that Transworld would reinforce the weak foundation. This omission to remedy a known structural defect constituted negligence, defined as the failure to observe the degree of care and vigilance that circumstances justly demand. The successive acts of Transworld (constructing an improperly founded lower structure) and Ruks (completing the upper structure despite knowledge of the defect) were concurrent efficient causes without either of which the injury would not have occurred.

• Solidary Liability: Solidary liability was properly imposed pursuant to Article 2194 of the Civil Code. Joint tortfeasors—those who act together in committing wrong or whose independent acts unite in causing a single injury—are each liable as principals for the entire damage. Where concurrent or successive negligent acts of two or more persons combine as the direct and proximate cause of a single injury, and it is impossible to determine the proportion of contribution of each, either is responsible for the whole injury. No contribution exists between joint tortfeasors whose liability is solidary.

• Negligence — Defined as the omission to do something which a reasonable man, guided by those considerations which ordinarily regulate the conduct of human affairs, would do, or the doing of something which a prudent and reasonable man would not do. It is the failure to observe for the protection of the interest of another person that degree of care, precaution, and vigilance which the circumstances justly demand, whereby such other person suffers injury.

• Joint Tortfeasors and Solidary Liability (Article 2194, Civil Code) — Joint tortfeasors include those who command, instigate, promote, encourage, advise, countenance, cooperate in, aid or abet the commission of a tort, or approve of it after it is done, if done for their benefit. They are also those who act together in committing wrong or whose acts, if independent of each other, unite in causing a single injury. Under Article 2194, joint tortfeasors are solidarily liable for the resulting damage, each liable as principals to the same extent and in the same manner as if they had performed the wrongful act themselves.

• Concurrent Causes Doctrine — Where several causes producing an injury are concurrent and each is an efficient cause without which the injury would not have happened, the injury may be attributed to all or any of the causes, and recovery may be had against any or all responsible persons. No actor's negligence ceases to be a proximate cause merely because it does not exceed the negligence of other actors. Each wrongdoer is responsible for the entire result and is liable as though his acts were the sole cause of the injury. There is no contribution between joint tortfeasors whose liability is solidary.

• "Joint tortfeasors are those who command, instigate, promote, encourage, advise, countenance, cooperate in, aid or abet the commission of a tort, or approve of it after it is done, if done for their benefit. They are also referred to as those who act together in committing wrong or whose acts, if independent of each other, unite in causing a single injury. Under Article 2194 of the Civil Code, joint tortfeasors are solidarily liable for the resulting damage. In other words, joint tortfeasors are each liable as principals, to the same extent and in the same manner as if they had performed the wrongful act themselves."

• "Where several causes producing an injury are concurrent and each is an efficient cause without which the injury would not have happened, the injury may be attributed to all or any of the causes and recovery may be had against any or all of the responsible persons although under the circumstances of the case, it may appear that one of them was more culpable, and that the duty owed by them to the injured person was not same. No actor's negligence ceases to be a proximate cause merely because it does not exceed the negligence of other actors. Each wrongdoer is responsible for the entire result and is liable as though his acts were the sole cause of the injury."

• "Where the concurrent or successive negligent acts or omissions of two or more persons, although acting independently, are in combination the direct and proximate cause of a single injury to a third person, it is impossible to determine in what proportion each contributed to the injury and either of them is responsible for the whole injury."

• People v. Velasco, G.R. No. 195668, June 25, 2014 — Controlling precedent establishing the doctrine on concurrent causes and the solidary liability of joint tortfeasors where each negligent act is an efficient cause without which the injury would not have occurred.

• Far Eastern Shipping Company v. Court of Appeals, 357 Phil. 703 (1998) — Cited in Velasco regarding the principle that where concurrent or successive negligent acts combine as the proximate cause of a single injury, either wrongdoer is responsible for the whole injury.

• Bank of the Philippine Islands v. Lifetime Marketing Corporation, 578 Phil. 354 (2008) — Cited for the definition of negligence.

• Garcia, Jr. v. Salvador, 547 Phil. 463 (2007) — Cited for the definition of negligence as the failure to observe the degree of care and vigilance circumstances demand.

• Article 2194, Civil Code — Provides that the responsibility of two or more persons who are liable for a quasi-delict is solidary. This provision formed the statutory basis for imposing joint and several liability upon Transworld and Ruks as joint tortfeasors.

Maria Lourdes P.A. Sereno (Chief Justice, Chairperson) Teresita J. Leonardo-De Castro Lucas P. Bersamin Jose Portugal Perez