There are various materials that are required to grow top quality plants like we produce here at the Conservatory. Using quality fertilizer,plants,plugs,seeds and soil(soilless mix) are important parts of the equation. Another important part of the equation is the glazing material covering the production greenhouses and the light transmission level it provides to the plants.
Replacing the yellowed glazing on our production greenhouses, which is happening now, is important during the low light levels of the winter months. During the summer months we use shade cloth to reduce the light transmission level.
The glazing was last replaced over twenty years ago, it had a estimated light transmission level of 50% and was quite yellow. The old glazing material was made of polycarbonate and had a light transmission rating of 81%.The new glazing material is made of impact modified acrylic with a light transmission rating of 86%.
This project only involved replacing the side panels of the production greenhouses. Seven years earlier the roof panels were replaced because of hail damage.Horticulture Staff