TRENTON, N.J. - Work on asbestos-containing insulation necessary to bring a boiler up its promised specifications constitutes a continuation of construction of an improvement to real property, and the New Jersey statute of repose bars resulting claims, a state appeals court held Sept. 4 (Mary O. Barile, et al. v. 3M Co. Inc., et al., Nos. A-0092-11T2, A-0141-11T2, N.J. App.).