Throughout the world there are great examples of historic wood structures that have withstood the test of time and exposure to various climates. One of the challenges that code officials and designers face for modifying existing wood structures is determining what design properties to use. This webinar will address methods used to establish recommended allowable design properties for structural wood members in existing buildings. Examples from several interesting projects will be presented including buildings under renovation and waterfront structures such as piers.

Learning Objectives:

1. Understand methods used to identify wood species used as structural members in existing buildings.
2. Understand methods used to visually grade structural wood members in existing buildings.
3. Understand methods used to establish allowable design properties for visually graded lumber in existing buildings.
4. Understand methods used for condition assessment of in-service wood including quasi-nondestructive evaluation methods and equipment.

Funding provided in part by the Softwood Lumber Board.