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How to protect wood from insects and water
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Greenhouses – Frequently Asked Questions
Unless your wooden greenhouse is made from cedar or pressure treated timber it will require regular treatment. Summer Garden Buildings recommends that the …
Source: www.summergardenbuildings.co.uk
Date Published: 1/29/2021
View: 5619
Best Treatment For Greenhouse Wood For The Money
Best Treatment For Greenhouse Wood For The Money. July 8, 2022 by Kite. Rate this post. Read these Product reviews if want to know which treatment for …
Source: www.kitestring.io
Date Published: 2/4/2021
View: 9784
weather proofing a wooden greenhouse – Dave’s Garden
Is any of the wood in direct contact with the ground? If so then you really ought to have used pressure-treated lumber for those parts.
Source: davesgarden.com
Date Published: 2/20/2022
View: 2329
Wooden Greenhouses Compared to Aluminium
On top of this the wood should be properly pressure tanalised to maximise its life. Pressure treatment forces the preservative deep into the wood unlike dipping …
Source: www.allotment-garden.org
Date Published: 10/3/2022
View: 4791
Wooden vs Metallic Greenhouses – Synnefa
When treating the wooden frame, the farmer needs ensure there are no … The best wood to construct a greenhouse frame is cedar which is …
Source: help.synnefa.io
Date Published: 10/28/2022
View: 185
How Long Does a Wooden Greenhouse Last? – Urban Backyard Farming
As you begin your gardening journey, you may consider installing a beautiful greenhouse next to your yard. These are great additions for gardeners who want to protect tender seedlings in early spring or want to grow vegetables through the winter. And while a wooden greenhouse is beautiful, you might be wondering if it’s the best material for a durable grow house.
How long does a wooden greenhouse last? Greenhouse structures made of wood are among the most stable and durable. However, their lifespan depends on the wood and climate. Pressure-treated cedar extends its lifespan, while living in a drier climate reduces the moisture that the wood absorbs.
Wooden greenhouses are among the most durable options, and quite frankly, they are also some of the most customizable and beautiful. We love a good wooden greenhouse. With that in mind, let’s talk about why we love them and what you can do to maximize the longevity of your investment.
Advantages of a wooden greenhouse
Obviously, one of the advantages of a well-built wooden greenhouse is that it is strong and durable. But we also love them because they’re beautiful and easy to customize.
Customizable
There are a number of kits on the market. All you have to do is get the parts for a greenhouse and assemble it for your plant babies. When you receive a metal greenhouse frame without special tools and protection, you are more or less locked into the form supplied.
However, when you get a wooden greenhouse kit, if you want to reshape, shorten or add, you can easily do it. You will still need some planning skill and care to ensure it seals.
If you’re even more hands-on, designing and building your own wooden greenhouse is a more economical route to a gorgeous, custom-made structure.
Nice
Speaking of which, let’s talk about how to make your greenhouse absolutely gorgeous. First of all, wooden structures look natural in a garden setting. They add to the romantic ambience of a flower garden or a vegetable garden.
It doesn’t have to be a big carpentry project. A nice little leaning tent made of wood is also really impressive. The size doesn’t matter much. Think about your needs. Consider the space of your garden. Then build a greenhouse that suits your aesthetic.
With wood, you can stain or paint it for your ideal look. You can even combine the wooden frame with bricks or stones around the foundation if it suits your house better. Who doesn’t love matching outhouses?
Robust
Of the variety of constructions, a wooden construction is of course one of the heavier options. This makes it the most stable with a proper foundation. If you are in a windy area, sturdy and heavy is good. You definitely want something that will stand up to the weather.
Yes, aluminum frames can be tough. However, most of their strength depends on the window panes holding up. Should a pane of glass break during a violent storm, this endangers the rest of the construction.
A greenhouse made of wood, on the other hand, is built in a similar way to a house. Its frame is its strength. If a window breaks, the corpse is still standing. This is one of the best things about wooden greenhouses.
Long lasting
Since you are asking how long wooden greenhouses last, you should know that they last. Some of our favorite gardeners have reported buying old homes with wooden greenhouses that have stood despite years of neglect.
But even if they are neglected, they will still be strong. With love and time, you can revitalize an old greenhouse for future use.
Owners who have built their own get 30 to 60 years of use from their wooden greenhouses. It takes care to keep the structure in good condition to ensure longevity. Let’s talk about how to set up your own wooden greenhouse to last a long time.
Best wood for wooden greenhouse construction
First things first: A good wooden greenhouse must be built from the right type of wood. While it’s okay to do your indoor woodworking projects with ordinary pine, a greenhouse needs to be able to withstand the elements.
The inside of a greenhouse gets very warm and humid. Wood exposed to moisture is likely to rot. You also need to remember that exterior timbers are at the mercy of the sun and insects. What you want are rot-resistant, insect-repellent building materials that tolerate exposure to the sun. Here’s what you need to know about your options.
Rot Resistant Woods
Let’s start with the woods, which are naturally predisposed to rot resistance and insect repellency. Our favorite is cedar. It starts off a gorgeous red and fades to a silvery gray in the sun. It is naturally moisture resistant and repels insects.
The other advantage is that it is not chemically treated. There is no risk of a treatment evaporating in the heat of the greenhouse and affecting your plants.
California redwood is another great option. It is great in high humidity situations as it has grown in foggy, humid conditions. It will still need a stain or paint to protect it from the sun. It does have a nice natural grain though, so you might consider a light stain.
In New England, black locust is a historical favorite for wooden outbuildings because of its moisture resistance. You might consider this if you live in this area to use a locally sourced material that suits the landscape.
Pressure treated wood
The main problem with non-chemically treated wood is that it is expensive. So, to reduce your own costs, you can consider pressure-treated wood. Well, that will come with its own potential problems. Organic farmers often comment online about how pressure-treated wood leaches toxins into their soil.
So let’s look at how wood for exterior construction is treated and what it could mean.
Chromated copper arsenate (CCA). This was banned for residential construction in 2003 due to the issue of arsenic contamination of the soil. However, some wood on the market can still be treated with it. Be sure to ask.
While arsenic is a big problem in the soil, the bigger problem is that the moisture in your greenhouse can vaporize the arsenic and carry it into the air. Coming into contact with your plants and you is unhealthy at best and toxic at worst.
To replace CCA, newer treatments, Alkaline Copper Quat (ACQ) and Copper Azole (CA-B), are used instead. These rely on higher copper percentages to compensate for the lack of arsenic. Copper can also leach into the soil, but in small amounts within inches of exposure. It’s not a high risk.
Best treatments for wooden greenhouses
Regarding the wood treatment itself, copper-based pressure impregnations are the best option. However, we still love the look of natural wood. So let’s move on to surface treatments for your wooden greenhouse. These options protect your greenhouse. They also give you a beautiful finish and a unique look.
wood keeper
Before doing anything, painting, staining or burning, you should use a wood preservative. Organic farmers’ tip #1 is linseed oil, which forms a great moisture barrier. It takes a while to dry so be prepared to wait. Your patience will be rewarded.
Pine tar is another organic compound you can use to extend the life of your wood. On its own, it even has a nice tint that replaces blemishes. But the big story is that it was the compound used on ancient Viking ships to make them seaworthy. It’s amazing at sealing out moisture.
colour
After you’ve used your wood preservative, look into a good wood paint if you want. Something like Thorndown’s if you’re in the UK or Kilz if you’re in the US.
Your paint needs to serve to protect your wood from rot, sun and rain, and it’s best if it’s eco-friendly so bad things don’t get into your greenhouse.
You might consider using the same color that you used for your house. It should work just fine and has the added benefit of fitting. Whatever you use, remember to refresh the color every two years for ultimate protection.
spot
If you love the grain of your chosen wood, a stain is a great option. So you can enjoy the natural beauty of your wooden greenhouse. Especially if you are aiming for a natural look in your garden, this is a great option. You can adjust the color to really bring out the grain while still remaining natural.
Depending on the porosity, a stain penetrates deeper into the wood. Technically, you don’t want your wood to be too porous at the time of staining. Use a wood preservative first or apply a stain afterwards to ensure there is a good moisture barrier.
Sho Shugi track
The first time I heard about this wood preservation option was at a “tiny home” show. The concept is Japanese. What’s happened:
They use a blowtorch to blast the wood until the outer layer chars.
A stiff bristle brush can be used to reveal the grain.
Finally, a natural oil is applied to complete the process.
The result is a rot-proof, waterproof, pest and fireproof wood. In the end, the look is a blackened wood grain that is very noticeable. As with paint and stain, you’ll need to do some maintenance to keep the look. It should last 50 years as long as it is oiled enough.
Traditionally, Japanese cedar is used for its innate ability to absorb heat. With this option, it is important to use the right species of wood, as not all species will respond correctly. You should also remember to wear a mask when brushing to avoid inhaling dust.
Air conditioning for durability
Once you’ve chosen your type of wood and your preferred exterior treatment, it’s time to consider caring for the interior of your greenhouse. This is where all the magic happens, so let’s talk about optimizing her for plant care and overall longevity.
Should You Use Air Conditioning?
The temperature in a greenhouse can vary from 30º at night to over 100º in the late afternoon on a temperate day. This can be mitigated by opening the vent windows and door during the day to improve airflow.
When it gets cooler, you can use thermal mass heat sinks to keep your plant babies warm throughout the night.
However, in a larger greenhouse or one in a particularly volatile climate, you may consider installing a climate control system. This will help maintain a constant temperature day and night. It can also be used to regulate humidity.
Too much moisture can damage your wood and affect the longevity of the entire greenhouse. And honestly, depending on your plants, you probably don’t need tropical humidity all the time either.
Preventing mold in a wooden greenhouse
Of all the things you wanted to grow in your greenhouse, we bet mold wasn’t on your list. Frankly, mold is not a good thing for your plants’ health. It’s also terrible for you if you intend to spend time indoors.
But since we’re talking about the longevity of wood greenhouses, the most important thing (for our purposes right now) is that mold is bad for your wood. The spores penetrate the pores of the wood and multiply. They eat through the wood fibers and compromise the integrity of the structure.
The best way to prevent mold is with proper ventilation and humidity control. This can be done either through the correct use of hinged windows and doors or through a climate control unit.
If you see mold forming, you can remove it naturally with a spritz of vinegar or hydrogen peroxide. Use a 30% solution, spray and leave for 15 minutes to completely kill spores.
Unfortunately, when mold does get into your plants, the only way to remove it is to be careful to prevent it from spreading further. You must surely burn them.
Best window material for a wooden greenhouse
There are many options for glazing your flooring. Because wood is strong, it can withstand the weight of panes of glass, which are by far the most beautiful. The other best option is polycarbonate.
Why glass glazing?
Glass looks fabulous, but it also has a handful of other benefits. Of the options, it has the longest lifespan, which goes well with a durable wooden greenhouse construction. Beauty is of course quite important, but function is also a big concern.
Functionally, glass transmits light and heat most directly. Single or double pane glass lets in the sunlight needed for photosynthesis. It’s more expensive, but there are double-pane glasses with argon gas in the middle to increase energy efficiency. This is great if you’re concerned about heat loss at night.
Yes, glass will initially become more expensive. Due to the long service life, however, the costs balance out. However, if you live in an area with frequent hail, this is probably not the best option. So what’s your alternative?
Why polycarbonate?
Polycarbonate may or may not be corrugated. Either way, it’s not clear as glass. Because of this, the incident light is scattered. This is pretty good for plants. You can also invest in double-glazed polycarbonate. This creates insulation that reduces heat loss.
And obviously, shatter resistance is a better option for areas where glass breakage is a risk. It’s also cheaper to start with. You will probably be curious about the longevity. The bias between glass lovers and polycarbonate advocates seems to never end.
While many agree that glass is traditionally best, many argue that polycarbonate is stronger, tougher, and more durable because it’s less likely to break.
Whether you choose glass or polycarbonate, there are plenty of good reasons either way. Glass is beautiful and allows you to see inside your greenhouse from the outside. It is durable and natural looking. On the other hand, polycarbonate is great for diffusing light, insulating your greenhouse, and can even last longer. Both are great choices.
Is a wooden greenhouse the best option?
Having gone through all the options for building a total greenhouse, we must return to the question of wooden greenhouses and their durability. Are wooden greenhouses really the best way?
We think so. A wooden greenhouse is not only a gorgeous option, but will last you almost a lifetime. With proper care, you can enjoy the structural addition to your greenhouse every day of the year for years to come.
Wooden Greenhouse Maintenance Guide
Wooden greenhouses have made a comeback in today’s gardening and compete in durability with aluminum frames.
Some people opt for the latter option, but there’s no doubt that the classic combination of wood and glass stuns with its looks.
Much like years ago when your grandma took care of the greenhouse, nothing has really changed in the log greenhouse maintenance routine.
There are a few very common problems associated with wooden greenhouses. So I will try to cover them all and give you a detailed guide on how to take good care of your wooden greenhouse!
How do you maintain a greenhouse?
Begin your routine maintenance by carefully examining the frame and base to find any issues that need to be addressed. A good base should be firm to prevent drought and pests from entering the greenhouse.
Check the connections of the wooden greenhouse and the nails. Also, it is important to inspect the entire structure for rot and general damage.
Moisture and mold in a wooden greenhouse
Moisture and mold occur when there is excess water. These can damage the wooden frame of your greenhouse.
For example, the temperature in the greenhouse and the humidity increase in the hot summer months. This can damage the wooden frame.
How to get rid of mold in the greenhouse?
To get rid of mold in a greenhouse, make sure the greenhouse is ventilated. It improves air circulation and reduces moisture and mold growth.
On the other hand, it is extremely important to install the vapor barrier in winter. Why?
When it’s cold outside, ventilation in a greenhouse tends to be poor because all the doors are closed and the vents are closed to keep the heat inside.
This causes moisture to build up and condense on the ceiling and glazing. This typically leads to the spots.
Drops of water drip onto the frame and leave stains on the wood. It can also attack the insulation, rot the wood and trigger mold growth.
If you’re not sure what the vapor barrier is, I’ll explain briefly. A vapor barrier can be any material that slows the migration of water vapor.
Most commonly, people use sheets of plastic or foil, which limit the movement of moisture through the surface and prevent interstitial condensation.
What is the best wood for a greenhouse?
There are tons of wood options on the market today. Therefore, it can be quite difficult to choose the right one for your needs.
Also, using wood for a greenhouse frame has never been the cheapest option and some of them can be very expensive. So keep that in mind. Let’s start with the types of wood.
Higher wood species like cedar are rot resistant and will function for decades. Cheaper types of wood are usually pressure treated to extend their lifespan.
Pressure impregnation is a method of preserving wood with chemicals. This keeps insects away from the wood and it does not rot.
However, this can be toxic to the plants you are growing. Rot-resistant woods do not require any pressure treatment, which is a great advantage.
When choosing wood for your greenhouse, pay particular attention to rot resistance. A greenhouse is an outdoor structure that is exposed to heavy rainfall, moisture, and soil.
Each of these factors leads to a susceptibility to fungal infections that cause the wood to rot. So what are the best wood options?
What wood is used for greenhouses?
Black Locust – high rot resistance and high availability in the US.
Osage Orange – good rot resistance but very hard to find wood for a greenhouse.
Pacific Yew – High rot and insect resistance, but will soon be an unsustainable source of wood.
Black Walnut – High rot and fungus resistance, but tends to be very expensive.
Red Cedar – the most commonly used wood for greenhouses, very affordable, high rot and insect resistance. Plus, it’s easy to find across the country.
Cypress – Moderately expensive and fairly available, preservative essential oils in the wood protect it from insects and rot.
To extend the durability of the wooden frame, you can either stain or paint it.
How to paint a wooden greenhouse
Before painting your wood, you must first wash it. Then lightly sand and ready for painting.
However, if you have an old greenhouse, the paint tends to build up on the wooden frame.
In this case you will need to strip the paint back onto the wood before painting again. To do this, simply remove the construction paint with a chemical stripper.
Painting or glazing wooden greenhouse frames?
What is the best solution for a greenhouse? Let’s start with a brief definition of both terms.
Paint covers the top of the wood, forming a thin film. The stain penetrates the surface and stains the substrate. Which one you use is entirely up to you.
Both require re-application with the same frequency (at least every two years). There are some advantages of using stain over paint.
First, you don’t need a primer and usually one coat of stain is enough. Secondly, stain is usually much cheaper than paint.
Finally, the stain will not flake or peel off like a layer of paint, giving the finish a natural look.
The perfect time to recolor or repaint your greenhouse is definitely summer.
How should I clean my greenhouse?
Use sponges and rags with some warm water to give your wooden frame a good clean. Also, if the surface is really dirty, make a weak solution of mild detergent.
Don’t forget to wipe the frame with clear water after the detergent to remove any chemical residue.
Maintenance tips for wooden greenhouses
After you’ve cleaned your frame well, it’s a perfect time to repair some damaged areas. After cleaning, let the frame dry and go over it with a medium or fine sandpaper.
Rubbing the damaged areas trims it back showing the fresh wood. If damage has occurred underneath, simply cut out that area and replace with wood spatula or a new piece of wood. These are the fixing solutions for the smaller problems
Now let’s look at the major damage. It is very common for a timber to be damaged across the frame from the inside to the outside of the greenhouse.
In this case you will need to remove your glass panes (or other glazing material). Then it is important to get rid of the rot. Some serious damage may require a complete replacement of the wooden frame.
I hope you have found the Timber Greenhouse Maintenance Guide useful and informative. If you’re not sure about anything, don’t hesitate to ask me in the comments section!
4 Greenhouse Frame Material Options to Choose From
Framing a greenhouse must take into account the material used as the cladding, but an unsuitable framing material can result in an unstable frame that will never be truly square. It is very difficult to successfully complete a greenhouse unless the initial framework is built correctly, and when you complete it you may find later that it has cracks and openings that are difficult to resist drafts and insect intrusion small animals are to be sealed.
Some greenhouses are sold in kit form, which doesn’t give you options for the frame materials, but building a custom greenhouse gives you the option of choosing the material you use for the frame structure. Here are things to consider about the four most common greenhouse framing options: wood, aluminum, galvanized steel, and PVC plastic tubing.
wood
Wood is a beautiful material that makes for a classic greenhouse structure. But wood is a bit impractical as a frame for a greenhouse unless the structure you’re building is more like a conservatory or summerhouse. Wood has good insulating properties and is fairly easy to manufacture and assemble into a frame. Greenhouses are wet, humid spaces, however, and most wood will eventually warp and rot under the prolonged humidity in a greenhouse. When using wood, opt for a species with known resistance to moisture and rot, such as ash. B. cedar or redwood. Or use chemically treated wood for outdoor use. No matter what wood you use, applying a finish every few years will extend its life.
Wood is a suitable material for a greenhouse that uses rigid glass or polycarbonate for its solar panels.
aluminum
Aluminum is a very low maintenance material – it will not rust or degrade when exposed to the elements. Aluminum is not very strong, however, and when it is used for a greenhouse frame, the support members must either be made from thick pieces or doubled for strength. However, aluminum provides a good rigid form for glass or polycarbonate sheets. Aluminum can be painted or anodized in any desired color.
Galvanized steel
Galvanized steel offers durability at a low cost. Because steel is very strong, your greenhouse will require fewer framing members, which means fewer shadows will be cast in the greenhouse. However, most steel frames are designed for use with polyethylene sheeting rather than solid glass or polycarbonate panels. Greenhouses with galvanized steel frames and polyethylene sheet covering are popular with commercial growers, but they’re not particularly attractive in residential areas. And a major disadvantage of galvanized steel is that eventually the galvanizing will wear off and the steel will rust.
PVC plastic pipe
PVC plastic pipes are inexpensive, lightweight (portable) and very easy to install. A frame made from a plastic tube is not as rigid as metal or wood, but the industry is looking at designs that incorporate metal supports along with the PVC frame. PVC also has the advantage of allowing less heat loss than metal frames. Greenhouses with PVC frames almost always use polyethylene sheeting for the walls. These are usually smaller backyard hobby greenhouses; Plastic pipe doesn’t work very well for a large greenhouse. Most hobby greenhouses sold in kits now come with PVC frames.
The biggest disadvantage of PVC is that it can eventually be damaged by sunlight. But a PVC greenhouse with UV protected pipes should last at least 20 years; You should pay attention to this when you buy a PVC greenhouse. Another disadvantage is that the frame tubes must be of large diameter to compensate for the relative lack of strength of PVC and therefore the frame casts more shadow than a metal frame.
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