Durable Building - MRc8 Intent To prevent the premature deterioration of the building by using shading screens, overhangs, durable materials and following construction guidelines to ensure a long Design Service Life (DSL) Requirements Develop and Implement a Building Durability Plan as per CSA S478-95 (R2001) - Guideline on Durability in Buildings and demonstrate and document the Predicted Service Life (PSL) of all the main components and assemblies Categories of Design Service Life for Buildings (From CSA S478-95) Category DSL for Building Type Examples Temporary Up to 10 years Temporary exhibition building, sales office Medium Life 25-49 years Most industrial buildings Long Life 50-99 years Most residential, commercial, office, health, and educational buildings Permanent Minimum 100 years Museums, archive, heritage buildings The intent and requirements described on this webpage are paraphrased from the copyrighted works of the USGBC "LEED 2009 for New Construction and Major Renovations Rating System November 2008", and, the CAGBC "LEED Rating System & Addendum for New Construction and Major Renovations LEED Canada-NC version 1.0 December 2004", and are presented here strictly for informational purposes and are not intended to supplant or be used in place of the original copyrighted works.