For over 20 years US Heritage Group has been focused on the development and manufacture of the highest quality masonry material solutions available in support of historic and non-historic restoration projects across North America. Though often overlooked, the long-term results of entire restoration projects are heavily dependent upon deep understanding of the relationship between building envelope design, operating environment, masonry materials, and people involved in the project. Application of materials, tools and techniques developed to optimize the cost of modern new construction projects lead to poor and potentially damaging results in masonry restoration projects, especially when applied to solid multi-wythe masonry walls.