FFA Horticulture CDE General Practice Exam

What type of glazing material is widely used due to its good light transmission and hail resistance?

1. Glass panels

2. Acrylic sheets

3. Polycarbonate structured sheets

4. Plastic film

The correct answer is: Polycarbonate structured sheets

Polycarbonate structured sheets are widely recognized for their excellent light transmission capabilities, making them suitable for applications where sunlight is essential, such as in greenhouses. They are designed to withstand impacts, including hail, which adds to their durability compared to other glazing materials. This resilience makes polycarbonate an ideal choice for environments exposed to harsh weather conditions. In addition to their strength and transparency, polycarbonate sheets are lightweight, which simplifies installation and reduces structural requirements. Their insulating properties also help in maintaining consistent temperatures within a growing environment. These qualities combined make polycarbonate structured sheets a preferred material in horticultural settings for effective plant growth. Other options, such as glass panels and acrylic sheets, may not offer the same level of hail resistance or durability for long-term use in outdoor settings. Plastic film, while lightweight and easy to install, does not provide the same structural integrity or long lifespan as polycarbonate sheets, especially under challenging weather conditions.