Importance

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Abstract

A hybrid stucco system includes a substrate, a weather barrier membrane, a polyisocyanurate board, an alkali resistant fiberglass mesh, a base coat, and a finish coat. The polyisocyanurate board is a high-density, closed-cell, rigid foam insulation board having a high R-value. The alkali resistant fiberglass mesh, in some examples, features a zirconia content of at least 19%. The alkali resistant fiberglass mesh may be pre-lathed onto the polyisocyanurate board during manufacture or otherwise coupled together by wide crown staples prior to entering the field. The base coat includes portland cement, acrylics, fibers, pozzolans, silica sands, and pumice. The base coat features a consistency that is easily applied to the alkali resistant fiberglass mesh and cures smoothly within one hour, in preparation to receive the finish coat.

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First Claim