Greenhouse glass is incredibly important for the maintenance of a greenhouse and essential to create the perfect environment for your plants. Based around keeping the right temperature and conditions to allow plants to grow and flourish, a greenhouse depends on the glass to absorb the right amount of sunlight as well as help insulate the controlled environment. Some may think that all greenhouse glass is simple and created the same, but experts of gardening know that what glass you choose is just as important as making sure it is undamaged. When it comes to owning a greenhouse, the slightest degree of change in environment can be the difference between a successful season and an unsuccessful season.
Trapping heat energy in the same way that the earth’s atmosphere does, greenhouse glass uses light wave transformation to heat the air inside the greenhouse. Solar rays reach the greenhouse and pass through the glass and are then absorbed inside the greenhouse which is then trapped by the glass. Essential to the greenhouse effect, more and more rays are absorbed through the glass and trapped inside the environment making optimal conditions for plants to thrive. Most of the waves produced by sunlight pass easily through different types of greenhouse glasses slightly differently, making it essential to choose the right one for the environment you are attempting to create for your garden.
When it comes to properly growing a garden, the amount of heat and sunlight trapped inside the greenhouse is what will cause plants to flourish or die off. When heat waves pass through the glass, they are then transformed into thermal energy and trapped inside the greenhouse; much like how the sun warms the earth. In addition to keeping the thermal energy contained within, the glass also produces an effect called convection. The air closest to the ground (and the plants) is warmest and has the tendency to rise. Since the glass in the greenhouse traps the air before it can reach high enough to cool completely, the air is continuously rising and falling within the greenhouse. Convection causes the air to maintain its heat and for the air to gradually get warmer each time the process is completed.
Greenhouse glass refers to the material that helps produce these effects and is either made from actual glass or the plastics used to construct greenhouses. Both materials function similarly and allow light to pass through them and trap heat inside. The choice of material used for a greenhouse depends on the environment and the structure itself. Money is also a factor in choosing the right type of glass for the job as well as how long the buyer expects the greenhouse to last. Plastics generally weigh less and are less expensive, but are not as durable as actual glass. Depending on budget and location, a plastic greenhouse is generally cheaper to build and serves the same purpose, but doesn’t last as long over time.
The main difference between regular glass and the glass used in greenhouses lies in the type of coating they receive. Usually, greenhouse glass has a coat or glaze applied to it and is tempered for safety. Since greenhouses are frequented by people, greenhouse glass is tempered in such a fashion that if it breaks, it crumbles into small, smooth pieces that are less likely to cut your skin. Although virtually any type of glass will work to produce the positive effects associated with greenhouses, it is recommended that tempered glass be used to ensure safety. Tempering the glass also has the ability to make it stronger and better stand up to harsh environments and weather phenomenon.
Some of the higher quality types of greenhouse glass also have an E-glazing applied which reflects some of the UV and infrared light back into the atmosphere. This process allows the same amount of light to pass, but protects seedlings and younger plants from receiving too much radiation that could potentially be harmful to the plants. This coating also helps maintain a more constant temperature by blocking the infrared rays that cause heat. With the right type of greenhouse glass, your garden can receive the right amount of sunlight and the perfect temperature to make sure your garden flourishes.