Greenhouse Glazing
Glazing isn’t a new dance move and neither is it some new-found method of cooking. Glazing in botanical terms refers to the material that is used to cover greenhouse frames. Materials used to build a greenhouse frame varies as each time there is something new in the market that is more energy efficient, affordable and lighter than the ones before. Some of the most widely used and preferred options are glass, plexiglass, polycarbonate as well as poly film.
When looking for a greenhouse or building one, the glazing determines how much expensive a greenhouse can be. Glazing also enhances the appearance. If you are considering glazing options, you have to go over a few details such as suitability for your site as well as the installation skill level and not to mention your budget. Here’s a checklist for you when deciding what is best for your greenhouse frame:
- What is the life span of each glazing choice?
- How well does it compare to hail and rock resistance?
- What is the cost for installation and maintenance?
- How easy is it to install?
- What is the glazing frame’s snow load support?
- Is it fire resistance?
- How well is the light resistance?
- Is it energy efficient?
- What is the weight-on the heavy or lighter side?
So what’s the different between these popular glazing options? Here is the breakdown:
Glass & Plexiglass
These are your more long-lived and strong greenhouse glazing options. The level of skill and expertise for the installation for these types of glazing is pretty high as precision is needed because the materials are rigid. Glass is heavy and brittle whereas plexiglass, though easier to work with can scratch easily and only used by a few manufacturers.
Both materials do not diffuse light so well which isn’t optimum for your growing plants. If you live in an area where there is constant thunderstorm and hailstorms, you might want to give glass and plexiglass a pass since it is expensive to repair. Pricing is moderate to high.
Polycarbonate
Another rigid and translucent material, this glazing is available in a single layer and honeycomb styles such as corrugate cardboard. Easier to install, this material can be cut into with a saw and comes with a warranty for 10 years. Pricing is mid range though a more energy efficient honeycomb varieties tend to be on the high side.
Poly film
An easier material to install even with homeowners tools. Poly is much thicker and more flexible. Because of its translucency, this material diffuses light well, reduces shadows and bounces off available sunlight which is good in aiding growing plants. Poly can last about 6 to 8 years and is easily replaced. Poly is also the least expensive of all the glazing options. You can get a more eco-friendly alternative by choosing poly film with ultraviolet (UV) protection. Most poly kits can be assembled on your own and they come in a kit complete with assembly instructions.
