Part 5 - Environmental Separation (See Note A-5)

5.1. General 5.1.1. Scope ............................................................................. 3 5.1.2. Application .................................................................... 3 5.1.3. Definitions ..................................................................... 3 5.1.4. Resistance to Loads and Deterioration ..................... 4 5.1.5. Other Requirements ..................................................... 5

5.2. Loads and Procedures 5.2.1. Environmental Loads and Design Procedures ......... 5 5.2.2. Structural Loads and Design Procedures ................ 6

5.3. Heat Transfer 5.3.1. Thermal Resistance of Assemblies ............................ 7

5.4. Air Leakage 5.4.1. Air Barrier Systems ...................................................... 7

5.5. Vapour Diffusion 5.5.1. Vapour Barriers ............................................................ 9

5.6. Precipitation 5.6.1. Protection from Precipitation ...................................... 10 5.6.2. Sealing, Drainage, Accumulation and Disposal ........ 10

5.7. Surface and Ground Water 5.7.1. Site Factors ................................................................... 11 5.7.2. Protection Against Hydrostatic Pressure ................. 12 5.7.3. Protection Against Ground Water ............................. 12

5.8. Sound Transmission 5.8.1. Protection from Airborne Noise .................................. 13

5.9. Standards 5.9.1. Applicable Standards ................................................... 16 5.9.2. Windows, Doors and Skylights ................................... 19 5.9.3. Other Fenestration Assemblies ................................. 20 5.9.4. Exterior Insulation Finish Systems ........................... 21