Which accessories should be checked for when estimating windows and curtain walls?

When estimating windows and curtain walls, it is essential to consider a comprehensive range of accessories that contribute to both functionality and aesthetics. The correct answer emphasizes the inclusion of glass, glazing, screens, and hardware, as all these components play critical roles.

Glass is a fundamental part of any window system, affecting visibility, insulation, and safety. Glazing refers to the way glass is installed and sealed within the window frame, which is crucial for performance against weather elements and energy efficiency. Screens are not only an accessory for preventing insects from entering spaces but also contribute to ventilation and can enhance energy efficiency when used appropriately.

The inclusion of hardware is particularly important as it encompasses the mechanisms that allow windows to open, close, lock, or pivot. The functions of these elements directly impact user experience and safety, making them vital for a complete estimate. Skipping any of these components could lead to inaccuracies in the overall cost and functionality of the window assemblies.

While the other options include some relevant components, they do not cover the full range of necessary accessories for a thorough estimate. For instance, choosing only glass and glazing overlooks the importance of screens and the essential hardware needed for operation. This oversight could result in significant gaps in budgeting and project planning. Therefore, recognizing and including