1. Variations in physical installation environments

a. Weather variations in Washington

b. Types of construction and materials used

c. Weather impact on interface materials and exposure periods

d. Installation practices during varying conditions

2. Installation of windows and flashing in single and multifamily projects in the Northwest

a. Divergence of methods between locations and type of construction

b. Agency requirements and inspections

c. Architect construction plan specifications

d. Practice compared to window manufacturers and E2112 specifications

e. Common Installation Problems Caused By Window Installers

f. Practical considerations, standards vs. the real world

f. Window manufacturer's instruction, guidance and training

h. Flashing observations encountered in the development of a new product

3. Consideration of current Acceptance Criteria and Evaluation Reports