This is a slip and fall case which raises issues under the law of premises liability.
We are required to decide whether the plaintiff was entitled to the requested instruction on com*473parative negligence; whether the Funk1 doctrine should be expanded to cover the facts of this case; and whether the Court of Appeals erred in finding that the trial court should have granted the defendant’s motion for a directed verdict. We answer the first and third questions in the affirmative, but answer the second question in the negative. Accordingly, the decision of the Court of Appeals is reversed and the case is remanded for a new trial under the principles of comparative negligence.2
On January 18, 1974, plaintiff Renold L. Beals, Jr., fell from a roof of the Kingston Farm Service building in Kingston, Michigan, onto the railroad grade below and then forward onto the tracks, striking his left elbow and face against the railroad tracks. He suffered a cut lip, a broken tooth, and an injury to his right foot which was later diagnosed as a multiple fracture of the right heel bone. The plaintiff and his spouse, Joyce E. Beals, filed suit on February 19, 1975, against the defendant, Richard Walker, the owner and operator of Kingston Farm Service. Amended complaints were later filed, alleging medical malpractice by defendant Dr. John Williamson in the treatment of the plaintiffs injured foot.
The trial began on June 6, 1978. At the close of the plaintiffs proofs, defendant Walker filed a motion for a directed verdict of dismissal. The trial judge took the motion under advisement. At the close of the case, the court refused to give the plaintiffs requested charge on comparative negligence and instructed the jury that plaintiffs con*474tributory negligence would bar recovery. Plaintiff objected to that instruction on the basis of Funk v General Motors Corp, 392 Mich 91; 220 NW2d 641 (1974). A jury verdict of no cause of action was returned in favor of both defendants on June 17, 1978. The plaintiff’s motion for a new trial was denied on October 6, 1978.
A timely claim of appeal as of right was filed in the Court of Appeals on October 26, 1978. Defendant Walker filed a cross-appeal, arguing that his motion for a directed verdict should have been granted. A majority of the Court of Appeals panel affirmed the judgment for defendant Walker on the basis of the issues raised in the cross-appeal, namely that certain safety regulations issued by the Michigan Department of Labor were not violated and therefore the motion for a directed verdict should have been granted. The judgment in favor of defendant Williamson was also affirmed. Beals v Walker, 98 Mich App 214; 296 NW2d 828 (1980). Judge M. J. Kelly dissented only as to defendant Walker, finding sufficient evidence to allow the premises liability claim to go to a jury.
The plaintiff applied for leave to appeal against only defendant Walker. We granted leave to appeal. 411 Mich 900 (1981).
The evidence adduced during the plaintiffs case in chief tended to show the following facts:
The plaintiff had been employed as a millwright for ten years prior to the accident.
The morning of January 18, 1974, was cold and misty, the type of day that required the use of windshield wipers when driving an automobile. Sometimes the sun would come out and then disappear again. The plaintiff and a fellow employee, John Wilson, arrived at the defendant’s grain elevator in response to Walker’s call for *475repair service. An elevator leg would not operate, and Walker suspected that the problem was a broken "reducer”, a large gear located in the "headhouse” at the very top of the elevator.
The "man-lift” used to reach the top of the elevator was capable of carrying only one person; the lift could not be sent down in order to carry up a second person because it was counterbalanced for the weight of one person. Since the repair required the attention of both of the men, it was necessary that another means be found to enable both Beals and Wilson to reach the headhouse.
The plaintiff initially looked for an inside ladder adjacent to the lift. The plaintiff and John Wilson testified that every other grain elevator they had ever worked on had an inside ladder. The plaintiff’s safety expert also testified that this was the only grain elevator he had ever seen without an inside ladder. The plaintiff’s employer provided a list of grain elevators he had worked on, all having inside ladders. Finding no inside ladder, the plaintiff asked one of the defendant’s employees how a second man could get to the headhouse. The employee said that a stationary outside ladder, which was permanently affixed to the outside of the elevator and extended from the roof of a lower building to the top of the elevator, could be used.3 The employee informed the plaintiff that a portable ladder which was in the warehouse could be used to gain access to the roof of the lower building in order to reach the base of the outside ladder.
The plaintiff obtained the portable ladder from the warehouse and placed it against the side of the building in order to obtain access to the roof of the *477lower building. Mr. Beals climbed the ladder, and when he reached the top looked at the roof for snow and ice and felt it for ice and wetness. The roof was dry, so he climbed up on the east side of the sloped roof and walked toward the stationary ladder, which was located on the other side of the roof a few feet past the peak. Before stepping over the peak, the plaintiff looked at the surface of the roof on the west side of the peak and determined that it looked just like the east side. As Beals stepped over the peak, he slipped, fell, and started sliding down the roof. The west side of the roof was coated with a sheet of clear ice. He slid off the roof, sustaining serious injuries when he struck the ground. A second worker traveled the same route later that same day and successfully reached the headhouse without incident.
*476
*477The plaintiff’s safety expert testified that the route from the ground to the headhouse via the outside ladder was unsafe in several ways. Although the slope of the roof was not severe, about 18 degrees, it was hazardous for a person walking upon it when compared to a maximum recommended pitch of less than 12 degrees. The expert testified that, in his opinion, the safe access ramp and platform required by the applicable safety regulations could have been constructed at total materials and labor cost of less than $500.
I
The plaintiff’s initial assignment of error concerns the trial court’s instructions on contributory negligence as a total bar to recovery and the court’s concomitant refusal to instruct under the doctrine of comparative negligence. This Court adopted the doctrine of comparative negligence in *478Placek v Sterling Heights, 405 Mich 638; 275 NW2d 511 (1979).
The defendant does not contest the fact that the issue was properly preserved and that this case falls within the limited rule of retroactivity announced in Placek, p 667, namely,
"any case presently pending on appeal in which application of the doctrine was requested at the trial court and the issue preserved for appeal.”
We are constrained to apply the rule of retroactivity adopted by a majority in Placek, despite the view of some of the justices that prospective application of comparative negligence would have been preferable. Placek, p 683 (opinion by Coleman, C.J., concurring in part and dissenting in part). If the plaintiff submitted evidence at trial sufficient to avoid the defendant’s motion for a directed verdict, see part III, then the plaintiff is entitled to a new trial under the principles of comparative negligence.
II
The plaintiff also objected to the trial court’s contributory negligence instructions on the ground that the defense of contributory negligence was unavailable under our decision in Funk v General Motors Corp, 392 Mich 91; 220 NW2d 641 (1974). Despite the fact that this case does not involve a construction worker alleging negligence against the general contractor in the failure to provide adequate safety devices on the job, the plaintiff argued that the Funk decision could be extended to cover the facts of this case. While the Funk rationale could have been extended to completely *479abolish the defense of contributory negligence,4 it is clear that the Funk doctrine was based in large part upon the special safety considerations in the construction trades5 and the unique role of the general contractor as a supervisor of common work areas.6 In Tulkku v Mackworth Rees Division of Avis Industries, Inc, 406 Mich 615; 281 NW2d 291 (1979), the Court assumed, without deciding, that Funk applied to the workplace in general. In addition, it is clear that the Tulkku decision is supportable without reference to Funk.7
In any event, we deem it unnecessary to ascertain the precise contours of the Funk doctrine, since the Funk doctrine has been overruled in light of the adoption of comparative negligence. Hardy v Monsanto Enviro-Chem Systems, Inc, 414 Mich 29; 323 NW2d 270 (1982). The plaintiffs assertions on appeal that Funk survived the adoption of comparative negligence in Placek were decided adversely to the plaintiff in Hardy and need not be reconsidered. Even if we extended the Funk doctrine to the facts of this case, the defense of comparative negligence would be available upon retrial. Thus, the trial court’s refusal to apply Funk to this case was not erroneous and does not justify a new trial.
Ill
The majority of the Court of Appeals held that the trial court erred in denying the defendant’s *480motion for a directed verdict. If the plaintiff failed to present evidence sufficient to establish a prima facie case of negligence, then the defendant was entitled to judgment as a matter of law, and the refusal to give the requested comparative negligence instructions would be merely harmless error. In evaluating a motion for a directed verdict, the evidence must be viewed in a light most favorable to the non-moving party. Caldwell v Fox, 394 Mich 401, 407; 231 NW2d 46 (1975). Viewed in this light, the trial court correctly refused to grant the motion for a directed verdict, and the Court of Appeals majority was in error in concluding that there was insufficient evidence to take the plaintiff’s case to the jury.
The defendant, as a business invitor, owed the plaintiff, as a business invitee, the duty
"of maintaining its premises in a reasonably safe condition and of exercising due care to prevent and to obviate the existence of a situation, known to it or that should have been known, that might result in injury.” Torma v Montgomery Ward & Co, 336 Mich 468, 476; 58 NW2d 149 (1953).
The Court of Appeals majority reasoned that "to the extent that the icy condition was obvious, due to the temperature, climate, and time of year, defendant cannot be held to have a duty to warn plaintiff of such a condition”. Beals, p 226. This conclusion is directly contrary to this Court’s decision in Quinlivan v Great Atlantic & Pacific Tea Co, Inc, 395 Mich 244; 235 NW2d 732 (1975).8 Of *481course, a roof is not a parking lot, but the reasonableness of the defendant’s conduct under these circumstances is a matter for the jury, not the Court of Appeals.
Further support for the plaintiffs case was provided by evidence tending to show the violation of two safety regulations issued by the Michigan Department of Labor. Violations of administrative rules and regulations are evidence of negligence. Douglas v Edgewater Park Co, 369 Mich 320, 328; 119 NW2d 567 (1963); see also Zeni v Anderson, 397 Mich 117, 142; 243 NW2d 270 (1976). The defendant argues that safety regulations in the workplace do not apply to employees of independent contractors; we reject that argument on the authority of Hardaway v Consolidated Paper Co, 366 Mich 190, 197; 114 NW2d 236 (1962).
The Court of Appeals majority found that the alleged violation of safety regulations was irrelevant and should not have been admitted. We disagree. As to the regulations requiring the use of guardrails and barriers on "runways”, there was evidence sufficient to support the inference that the roof was used as a "passageway for persons elevated above the surrounding floor or ground level”. Of course, should the jury conclude that the roof was so rarely used that it was not a. "passage*482way”, or "runway”, then it will properly conclude that the regulation was not violated. A similar factual dispute exists regarding the regulation requiring a platform at the base of a ladder ascending over 20 feet. Whether or not the platform would have prevented the plaintiffs fall or provided a means by which the plaintiff could have stopped his fall is a question of fact for the jury, since it appears that while the plaintiff never actually reached the ladder, he may have slipped down the angled roof over the area on which a horizontal platform should have been constructed. However, before the regulation is admitted upon retrial, the trial judge must carefully consider whether the harm suffered was what the regulation was designed to prevent. Zeni, supra, p 138.
Finally, the plaintiff introduced evidence sufficient to create a factual question whether the defendant violated the industry custom of providing an interior rather than an exterior ladder. Our review of the record convinces us that the trial judge correctly submitted this issue to the jury as well.
The trial judge correctly denied the defendant’s motion for a directed verdict. The Court of Appeals majority erroneously concluded that a directed verdict should have been granted. The decision of the Court of Appeals is reversed, and the case is remanded for a new trial.
Fitzgerald, C.J., and Coleman, J., concurred with Ryan, J. Williams, J., concurred in the result.Funk v General Motors Corp, 392 Mich 91; 220 NW2d 641 (1974).
The plaintiff claims that he was denied a fair trial by the admission of a complete written statement by defendant Walker and by a jury instruction that injected a false issue into the case. These issues were not reached by the Court of Appeals, are not necessary to our decision today, and need not arise upon retrial. Accordingly, we decline to address them.
Plaintiffs exhibit No. 13 (next page) illustrates the situation.
Hardy v Monsanto Enviro-Chem Systems, Inc, 414 Mich 29, 38, fn 3; 323 NW2d 270 (1982).
Hardy, fn 4 supra, p 71, fn 45 (opinion by Moody, J., dissenting in part).
Hardy, fn 4 supra, pp 63-65, 69, fn 41.
Hardy, fn 4 supra, pp 42-43.
"For reasons adequately stated by the Alaska Court, we reject the prominently cited notion that ice and snow hazards are obvious to all and therefore may not give rise to liability. While the invitor is not an absolute insurer of the safety of the invitee, the invitor has a duty to exercise reasonable care to diminish the hazards of ice and snow *481accumulation. * * * The conduct of the invitee will often be relevant in the context of contributory negligence.” Quinlivan, pp 260-261.
" 'The mere fact that snow and ice conditions prevail for many months throughout various locations in Alaska is not in and of itself sufficient rationale for the insulation of the possessor of land from liability to his business invitee. Nor do such climatic conditions negate the possibility that the possessor should have anticipated harm to the business invitee despite the latter’s personal knowledge of the dangerous snow and ice conditions or the general obviousness of such conditions.
" 'What acts will constitute reasonable care on the part of the possessor of land will depend on the particular variables of each case.’ ” Quinlivan, p 260, quoting Kremer v Carr’s Food Center, Inc, 462 P2d 747 (Alas, 1969).