Tangent: Some historic brick-built structurer in Cali are reinforced by apply fiberglass resin (just the resin, no fibers) to the surface of the bricks. This usually manifests as a glossy clear layer completely covering brickwork of the ground floor, followed by narrower and narrower strips of resin for the next floors. It can be applied to interior, exterior, or both surfaces, depending on assessment of the structure.