Constructing a wooden greenhouse may be one of the most cost effective greenhouse options. As a wooden greenhouse tends to be far too expensive to ship commercially, a wooden greenhouse is usually constructed from plans. Builders are able to choose their woods, for example, some examples of which include cedar and redwood, from which to construct the greenhouse. They can also choose their own layout and style of the greenhouse, which they must be fully aware of the various features that are required for building it properly. Builders need to know enough about gardening in general to create the right kind of plan, since this will affect the types of plants that can be grown.
In the case of a wooden greenhouse, the plan is followed strictly to detail. For example, all the lumber used has to be pressure treated, and any beams or joists have to be galvanized. All of these features help to extend the life of the greenhouse, ensuring that it will be sturdy and long-lasting over time. The wood has to be treated chemically in order to resist insects, mold, mildew and rot, and then painted and sealed in order to make it durable and appealing. There are several ways of doing this, including applying an exterior paint that helps prevent mold and mildew.
Lean-to wooden greenhouses also require a sturdy foundation. These can be made using lumber placed horizontally, with each piece placed on top of the last. This type of foundation is most suitable for small greenhouses where each unit can be separately supported by its own weight. Lumber that has already been framed into four units can be used for the foundation. It can also be purchased in boards that are already stained and painted.
For large-scale wooden greenhouses, a thick, solid wooden frame with support slats is preferred. These support slats should be equally spaced apart, allowing a bit of give for air flow, but preventing the frame from getting too weak from being overextended. Some builders opt to use two layers of particleboard instead of one, in order to improve strength and stability. In order to make the frame more attractive, different colored boards are available that feature cutouts and architectural details in order to lend a distinctive look to the structure.
One major benefit of wooden greenhouses is their durability and long-lastingness. A key to the long-lastingness of the frame is the spacing between the slats of the wood. Spacing is important because it allows the panels to be spaced tightly enough together to ensure that moisture does not accumulate between the slats, which could weaken the panels. Wooden greenhouses that are built with proper spacing between the slats can be as effective at protecting plants from any sort of weather damage as structures that are not properly built.
It is important to use quality potting soil in your wooden greenhouse, especially during the first three years. This will help your plants develop a strong root system that will withstand drought as well as pest attack. Most good potting soil contains compostable material, like dried corn stalks or kitchen waste. To maintain the health of your plants, you may want to change the type of potting soil every couple of years and to fertilize your plants with fertilizer. Beneficial insects are also beneficial because they eat pests and keep wood treatment panels healthy.
Another factor to consider when considering the longevity of your wooden greenhouse is to consider the climate control system that is installed. You should make sure that you have adequate climate control, since plants in a greenhouse do not have control over the outside temperature of the world and may therefore experience extreme heat and cold. If you live in an area with a harsh climate, you may consider installing a vapor barrier over the greenhouse to prevent heat or cold from damaging the plant. Some climate control products are also available that are installed in the structure of the greenhouse, allowing the gardener to control the temperature of the space.
An important point to remember when considering the longevity of your greenhouse is to choose solid stucco or hardwood for the outer surface of the structure. The reason is that wood expands and contracts depending on the sun's rays and heat or cold. If you choose a wood that does not expand or contract, it will crack and break. If you choose a greenhouse that has a vapor barrier, it will be better to use particle board, fiberglass or vinyl for the lumber. If you are uncertain of which option is best for your greenhouse, consulting a professional local greenhouse company can help you make the best decision.