System and method for attaching architectural moldings and insulation sheets to buildings

This invention relates to a system for attaching architectural molding or insulation sheets to buildings, and more particularly to attaching architectural moldings formed from a light foam plastic core covered with a hard base coat or insulation sheets of light foam plastic to an exterior substrate or wall of a building or structure using fasteners that bear against an insert or strip that extends through the moldings or sheets. A system for attaching architectural molding or insulation sheets to buildings or other structures which uses headed fasteners that bear against strips of substantially rigid material embedded in the molding or sheets that include a foam plastic core optionally covered with a hard base coat of cementitious material.