Download the Corporate Video At Harwal we are committed to our corporate social responsibility and adopt various CSR initiatives towards fulfilling our commitment. We ensure that our products and the processes involved in our operation are environment friendly read more ... Tel: + 971 6 5335366 Fax: + 971 6 5331510Here is a step-by-step guide on how to build a plastic bottle greenhouse, for those of you with the time and patience to collect enough empty plastic bottles to construct one. Making this type of greenhouse is cheap, but it is also quite an undertaking in terms of labour and the time it will take. Perhaps it is best left to community organisations and schools, you might think. Don't let that put you off. There is no reason why everyone should not have such a wonderful PET plastic construction in their yard. PET stands for Polyethylene terephthalate which is the type of plastic approved worldwide for plastic bottles intended for the drinks industry.
Advantages of a Plastic Bottle GreenhouseIt's cheap to construct. You will need approximately 1400 empty 2 litre (40oz) plastic bottles to build a greenhouse that is 8' x 6'. Even if you don't use that many, you can collect them from neighbours, friends, hotels, bars, and restaurants in your area.Because there are gaps at the tops of the bottles, heavy rain can certainly penetrate from where the bottles lie side-by-side. This is a huge time saver for greenhouse growers. Also, rainwater is always better for your plants than tap water. It raises the temperature. The temperature is raised about 10 degrees centigrade compared to the weather outside. That is a huge difference and it should certainly lengthen the growing season for many plants, no matter what climate you live in. It saves landfill sites from yet more plastic waste. It goes without saying that if everyone saved those plastic PET bottles for constructions like greenhouses, there would be less to clutter up landfill sites.
It is cheap and easy to repair. You can simply replace the plastic bottle that has broken or been damaged by missiles or animals. All your bottles are hooked onto either wire or a cane or sticks. So all you need to do is unhook the line, slide out the bottles including the broken one(s), and replace it with a fresh one. It is sturdy and can withstand strong winds. Plastic bottles can't get blown away when they are pinned into place. The strength of your structure will depend entirely on how well the lines of bottles are anchored. How to Build a Plastic Bottle GreenhouseThe bottles are washed to remove labels, then the bottoms are cut off. You will need to remove the bottle lids too. Thread your bottles through whatever medium you choose to use to hold them in a line. This can be bamboo canes, or lengths of stick — though they need to be slim enough to feed through the bottle opening — or wire. Once you have your basic frame, you then connect your canes or sticks with the interlocked plastic bottles already fitted, to the frame.
All the greenhouses I have seen built with plastic PET bottles have used a wooden frame, which is surprisingly not terribly 'green' as trees have to be cut down to provide the frame. It also requires constructing, and that would mean calling in a joiner or woodworker in my case anyway. I am still thinking of alternatives to wood. An AlternativeAnother way to build your greenhouse would be to interlock all the plastic bottles together, one on top of the other, as above, with the bottoms cut out to make a tighter fit, but without a central support. Instead, horizontal wires can be attached both inside and outside the greenhouse to hold the bottles in position, as shown in the photo below. You will note that, in this project, the lids were left on the bottles, and I must admit I quite like that idea as it is one less place for insects to enter and make themselves at home. Can you imagine how horrible going into your new plastic bottle greenhouse would be if you were confronted every time by nests of insects in the walls?
Apart from the aesthetic appearance, a good deal of light would be cut out. As Insulation Plastic bottles greenhouses can also be insulated to keep out cold draughts, and to cut down on self-watering when it rains. Bubble wrap, which you can buy in rolls from any local DIY store, does the job really well. As you can see from the above photos, making greenhouses from plastic bottles seems to be popular as a community effort. But I would like to build one for myself, primarily because of its cheap construction. In Europe, building plastic bottle greenhouses has become a popular past time for many. I have been unable to locate information as to whether the plastic bottles stand up well under a hot sun, which is normal where I live (in southern Spain). Plastic bottle houses stand up very well in sunny conditions in hot countries, but the plastic is not really exposed to a lot of sun, being filled first with sand and then covered by mortar. Filling with sand is NOT an option for a greenhouse as it then becomes a garden shed or something!
If any architect reads here, I would welcome your opinion, before I go to the effort of collecting thousands of empty plastic bottles. How to Build a Greenhouse using Plastic BottlesAdd to My FavoritesLow maintenance capped decking mate... Low maintenance capped decking material wpc co extrusion decking for o... 100 Square Meter/Square Meters US $ 17.2 - 25.85 / Square MeterMaybe you’re sitting on one right now. It has a high back with slats, or arches, or a fan of leaf blades, or some intricate tracery. Its legs are wide and splayed, not solid. The plastic in the seat is three-sixteenths of an inch thick. It’s probably white, though possibly green. Maybe you like how handy it is, how you can stack it or leave it outdoors and not worry about it. Maybe you’re pleased that it cost less than a bottle of shampoo. No matter what you’re doing, millions of other people around the world are likely sitting right now on a single-piece, jointless, all-plastic, all-weather, inexpensive, molded stacking chair.
It may be the most popular chair in history. That dawned on me recently after I started noticing The Chair in news photographs from global trouble spots. In a town on the West Bank, an indignant Yasser Arafat holds a broken chair damaged by an Israeli military operation. In Nigeria, contestants in a Miss World pageant are seated demurely on plastic chairs just before riots break out, killing some 200 people. In Baghdad, U.S. administrator L. Paul Bremer III, during a ceremony honoring Iraqi recruits, sits on a white plastic chair as if on a throne. My curiosity aroused, I found this chair (via the Internet) almost everywhere: at a minor-league baseball stadium in West Virginia, at roadside food stands in Vietnam, at a rustic waterside tea garden in Istanbul, at a school principal’s office in Malaysia, in shallow seas off Bora-Bora (where tourists sat on partly submerged chairs and ate grilled lobster off plastic tables). Friends told me of seeing it at huge village weddings in Afghanistan and Pakistan and in cinderblock houses in Mexico.
The plastic chairs in all those places were essentially alike, as far as I could tell, and seemed to be a natural part of the scene, whatever it was. It occurred to me that this humble piece of furniture, criticized by some people as hopelessly tacky, was an item of truly international, even universal, utility. What other product in recent history has been so widely, so to speak, embraced? And how had it found niches in so many different societies and at so many different levels, from posh resorts to dirt courtyards? How did it gain a global foothold? For one thing, the resin chair, as it’s technically known, is perhaps the world’s cheapest seat. In some places, you can get one for a dollar. Also, it doesn’t need painting or harsh cleaning (some folks dunk theirs in the swimming pool). It supposedly doesn’t dent or corrode or fade in sunlight or harbor fungus or disintegrate in saltwater or chlorine. It’s so lightweight that the very old and very young can drag it around.
It is manufactured in Russia, Australia, Taiwan, Mexico, the United States, France, Austria, Morocco, Turkey, Israel and China, among other countries. How many have been sold? “Beyond millions,” Wade Jones, a Miami-based distributor, told me. “I couldn’t begin to guess how many.” The Chair took about a quarter of a century to come into being. After World War II, progressive designers like Charles Eames and Eero Saarinen tried to produce affordable plastic furniture. “There was a long evolution from the war, with different plastics being developed and different designers trying to exploit these plastics,” says Peter Fiell, coauthor with his wife, Charlotte, of the book 1000 Chairs. Eames and Saarinen, among the most prominent mid-century furniture designers, made chairs with “shell” seats molded out of fiberglass-reinforced polyester. But their chairs had metal legs; the plastic alone wasn’t strong enough to support someone. Saarinen (who died in 1961) very much wanted to produce a chair that was, as he put it, a “structural total,” as all great furniture from the past had been.
But when he made his famous tulip chair—a plastic shell seat atop a pedestal—he had to sheathe the metal pedestal in plastic so the chair would at least appear unified. “I look forward to the day when the plastic industry has advanced to the point where the chair will be one material,” he once said. (If he were around today, might he think, Be careful what you wish for?) In the 1960s, European designers created chairs that took advantage of improvements in plastics technology. One was a polyethylene stacking chair that, although it had detachable legs, was made by a process that would be central to success: injection molding. Another was an armless chair of fiberglass-reinforced polyester that was all-of-a-piece, legs included, but was produced by compression molding, a process less suitable for mass production. Then, in 1968, came what Fiell calls “one of the most important events in the entire history of furniture design.” Danish designer Verner Panton, after ten years of searching for the right plastic, produced the first single-form, singlematerial, injection-molded chair.
It achieved total design unity in combination with a high-volume industrial process. Still, Panton’s chair was very high style, a single long S curve with a U-shaped base, and demand for it was limited. Eventually, a savvy manufacturer combined plastics, process and practical design to make The Chair as we know it. “It wasn’t until a more utilitarian manufacturer embraced the injection-molding process that this design happened,” Fiell says. So who set off this revolution in seating? “I wish I knew,” Fiell says, adding that he assumes it happened in the early 1970s. In any event, none of the current makers of monobloc chairs—monobloc meaning a single piece of plastic shaped by injection molding—is taking the credit, or the blame, for the breakthrough. Grosfillex, an american branch of a French company with a factory in Robesonia, Pennsylvania, makes monobloc chairs for what it describes as the middle- to upper-middle end of the market. Touring the factory with Dan Yearick, Grosfillex’s vice president of manufacturing, I visited a huge room that held several injection-molding machines, each about as long as a locomotive.