Take it, Janet Adamy:

A labor union representing roofers is reversing course and calling for repeal of the federal health law, citing concerns the law will raise its cost for insuring members.

Organized labor was instrumental in getting the Affordable Care Act passed in 2010, but more recently has voiced concerns that the law could lead members to lose their existing health plans. The United Union of Roofers, Waterproofers and Allied Workers is believed to be the first union to initially support the law and later call for its repeal.

“After the law was passed, I had great hope…that maybe the rough spots would be worked out and we’d have a great law,” said Kinsey Robinson, international president of the union, which represents 22,000 commercial and industrial roofers…

Mr. Robinson says the union’s concerns about the law began to pile up in recent months after speaking with employers.

The roofers’ union’s current insurance plan caps lifetime medical bill payouts at $2 million for active members and $50,000 for retirees. Next year, the plan has to remove those caps in order to comply with the health law. Other aspects of the retiree plan must become more generous in order to meet the law’s minimum essential coverage requirements next year. All that will increase the cost of insuring members, Mr. Robinson said, and has prompted the union to weigh eliminating the retiree plan.

Adding to those cost concerns is a new $63-per-enrollee fee on health plans that pays insurers to cover people with pre-existing conditions next year. Looking ahead to 2018, when the law levies an excise tax on high-value insurance plans, Mr. Robinson predicts that at least some of the union’s plans will get hit by it…

Over time, Mr. Robinson says, his optimism that regulators or lawmakers would address the union’s concerns diminished. “I don’t think they are going to get fixed,” he said. On Tuesday, the union called for a repeal of the health law or a complete reform of it.

Will the last ObamaCare supporter please turn off the lights?