What limestone thickness and finish are recommended for Split-Face Limestone Ledgestone, Retaining Wall Veneer & Fireplace Surrounds?

We recommend 20–35mm Split-Face Veneer + Matching Pre-Cut 90° L-Corner Quoin Returns in Natural Split-Face / Hand-Chiseled / Fluted finish, achieving ASTM C97 / EN 771-6 Exterior Masonry Veneer Compliant.

What substrate and adhesive system should be used for Vertical Stone Masonry?

CMU blockwork, poured concrete retaining walls (with positive rear waterproofing & drainage mat), or cement-board sheathing with stainless steel lath. Finish with Vapor-permeable silane-siloxane water repellent to prevent efflorescence from retaining wall backfill.

Application Guide · RW-TYAPPL-0110 · Vertical Stone Masonry

Split-Face Limestone Ledgestone, Retaining Wall Veneer & Fireplace Surrounds

Tactile 3D shadow-line wall cladding with seamless interlocking L-corner returns that replicate full-bed dry-stack stone masonry at 20% of the structural dead weight.

1. Structural & Surface Specification Matrix

Engineering Parameter	Mandatory Architectural Specification
Application Category	Vertical Stone Masonry (RW-TYAPPL-0110)
Recommended Surface Finishes	Natural Split-Face / Hand-Chiseled / Fluted
Calibrated Thickness & Profile	20–35mm Split-Face Veneer + Matching Pre-Cut 90° L-Corner Quoin Returns
Slip & Safety Compliance	ASTM C97 / EN 771-6 Exterior Masonry Veneer Compliant
Substrate & Mortar Assembly	CMU blockwork, poured concrete retaining walls (with positive rear waterproofing & drainage mat), or cement-board sheathing with stainless steel lath.
Surface Sealing & Protection Protocol	Vapor-permeable silane-siloxane water repellent to prevent efflorescence from retaining wall backfill.