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Thursday, September 28, 2006

London Treehouse Overlooks Regent's Canal

Another image from Flickr showing a childs treehouse overlooking Regent's Canal in London, England. This little place is a cute shelter and no doubt a rare pocket of heaven in the eyes of the inhabitant.

I find it surprising that a someone in London built a treehouse. And the way the large white building, what looks like row housing , dwarfs the tree. The house has several windows facing out to the canal with good views, yet the treehouse seems to be the preferred setting for gazing at the scenery.

There is something about being in a tree and over a garden that makes the experience unique. For a kid to climb up the ladder to watch canal traffic from there, a little alternate universe framed by civilization, must be a special treat.



Saturday, September 23, 2006

Dominating Treehouse Kills Tree And Is Abandoned

Sometimes we just gotta learn by seeing how not to do something.

I found this image on Flickr by poppL. It pretty much serves as a prime example of how structural domination over a tree does not work. I'll point out three no-no's I picked out of this photo:

My first criticism is that the platform is far to low in the tree, too close to the crotch, and the branches look to be cut where they meet the floor. One branching trunk seems to be left protruding through the roof, or out the back, and that was eventually topped as well when the tree began to die.

Trees need their canopy to live and a well designed treehouse will accomodate that and take advantage of the natural shelter it provides. Smart treehouse designs are all about optimizing a symbiotic relationship with the trees!

Second, look at the base of the trunk. There is a large section of bark missing on the right hand side. Injuries such as this are devastating and can kill a tree. The bark layer is what transmits most nutrients, not the core of the tree, and by stripping it off all growth above that point will be stopped.

Third, I suspect that the supports for the floor and walls of the house are nailed directly into the tree trunk. This also damages the bark and steel nails will rust and cause rot to occur. Too many nails, throughout all sides of a tree trunk, and the tree will be severely injured and susceptible to other problems.

There is a nice analogy here with body piercing. Anyone can get numberous well placed , and sterile, piercings in their body -- ears, nose, bellybutton, etc -- without any real harm done. But no one would volunteer to have a number of small steel spikes randomly driven into their torso. That would result in serious pain and a trip to the hospital. Well, same goes for a tree: there are certain ways to get support from a tree without doing any real damage.

So, the overall lession to be learned here is this: A tree house sucks when it is in a dead tree. A good tree house design ensures the health of the tree and takes advantage of the natural strength and protection it can offer. Enjoyment of a tree house depends in part on having a healthy tree.



Wednesday, September 20, 2006

High Quality Treehouse Example

Another image I found on Flickr by user annie_everywhere. It looks like a little shed with deck way up in a oak tree -- a perfect getaway design.

Not much is said about it, no details about construction at all, but looking at the photo for a while I've discovered some interesting things.

First off, it looks well built. There appears to be a steel frame, in black, around the perimeter of the floor and one beam through the middle. This is a very strong foundation upon which the wooden joists and floor are attached. Even the house itself looks to be of a traditional and sturdy construction design.

Second, notice the placement in the tree. The house is perched between four very large branches from a common trunk which provides good stability and a secure base.

Third, there is a hole in the deck. I think this is for a rope and pulley system. However, there is no other noticible means of access, no ladder is visible, so this may also be the only way up into the house.

A combination of height, and what I assume is rope access only, would make this a very private place to spend some high quality quiet time.



Wednesday, September 13, 2006

Treehouse Looks Like A Japanese Lantern on Stilts

I like the site inhabitat because they have a blog that features some pretty cool treehouses. Recently they blog'd about one by Lukasz Kos, also featured in dwell magazine.

Lukasz Kos is a cofounder of Testroom, a Toronto-based architecture and design firm, and built this tree house on Lake Muskoka, Ontario, Canada. Some people have called his design a "Japanese lantern on stilts", which I'd interpret as a compliment.

I like that it stands out from the backdrop: The slatted horizontal lines and sharply defined box cut contrasts with the surrounding trees and natural organic forms. Yet, the ideas and design put into materials and the layout of the living space compliment the in-forest living experience.

Like the previous entry I made, this design predominantly uses horizontal pine slats to form the exterior walls. Is this method turning out to be a defining feature in modern treehouse design?

Slat walls seem to be so popular because they are light weight, cheap in material costs, and structurally rigid. And they offer unique functional qualities that are desirable for treehouses: Slat walls create warm natural light diffusion, provide good air circulation, and act as a floor-to-ceiling safety railing.

I'm also taken by the use of a sliding door on the front of the house (also the hallmark of modern treehouse?). This looks to me like a great way to open up an enclosed room to the outdoors. Who needs to open windows when the wall can slide down?

The home has three floors: the lower one is the enclosed room, the second floor is a semi enclosed room with open slat walls, and the top floor is an open air deck.

The entire structure hangs from the four trees that pass through it. Cables connect from the structure and extend above the roof to attachment points on the trees far above. Although this method is the most tree friendly approach, the treehouse experiences more swaying motion during windy conditions than other designs.



Monday, September 11, 2006

Baumraum Designs: Modern Tree Capsules

I found a story in the April 2006 edition of Dwell Magazine about an architectural firm in Bremen, Germany, called Baumraum Design.

They have designed nearly a dozen unique treehouses for clients in Germany, Austria, and Brazil.

I admire the use of cables, cantilevers, and beams in their designs. Very clean and modern; light-weight and strong.

The hallmark signature seems to be an avoidance of right angles --the walls are all oblique angles -- and long narrow box designs for the actual shelter structure.

It is interesting to me that the home part is prefabricated and transported to the site to be lifted in place by crane. The deck and support beams for the structure are built on site according to the custom requirements of the trees.

The business model utilizes the prestige of custom architectural design, the efficiency and quality of prefabrication methods, and the natural resource of existing trees on location to make their magical structures.

Another cool feature of their design is the sliding shutter for the window (as pictured close up). This is a beautiful consideration for both weather and sunlight protection, and I think the gaps between each slat is left open to allow air flow and partial light to enter. This is a very stylish consideration for a treehouse and a very elegant method of incorporating protection from the elements into the overall design.

The following is the reference to the article in Dwell:

Tree's Company
Story by Monica Zerboni
Photo by Alastair Jardine
p.212, Dwell Magazine, April 2006



Friday, September 08, 2006

Redwood Tree Trunk Houses

Another image from flickr that demonstrates tree houses come in many shapes and forms...



Thursday, September 07, 2006

Log Tree House Made of Posts

I found this image on flickr and thougt it would make a nice posting.

I like the feel of the design -- the rounded posts used throughout the building for supports, walls, and window frames.

It is a good example of stylistic consistency and how the use of a basic building material -- round posts -- in many different ways can create a cohesive and attractive design.

It reminds me of a log house, or log tree house, and that makes it kinda warm and rustic. And there is something about the incorporation of the branches and plants in the window box that add to the visual appeal.

My critique of this tree house is that a small hex floor plan around a large trunk is often not very practical. It'll leak where the roof meets the tree and the interior space is a narrow ring unable to accommodate funiture.

A hexagon floor with knee braces is often used in conjunction with single tree installations; however, this version also has support posts to the ground. Some people prefer this method because the tree can remain free standing and the house does not contact it, nor damage it, with support hardware. But, if one opts to use posts, then it does not make sense to have the tree pass through the centre of the floor. Instead, use the advantage to make the floor plan as open and usable as possible, and position the tree at the edge outside by the deck.

In my opinion, however, posts in general detract from the true intention of a treehouse. They are visually bulky and limit the height that the house can be positioned. Also, they can create other wearing problems when the tree moves independent of the structure. This tree house design is nicely centred around the single trunk and would be well suited to weight bearing knee brace supports. When you let the solid tree trunk support the weight little posts are kinda redundant.

Overall, I really like the idea of a log treehouse and the stylistic use of posts throughout the design. I'd prefer to see these themes continued in a way that perches the home in the tree and makes it more integrated with the living structure. And, if your going to build a treehouse, make it functional with a more practical floor space and capability to keep the weather out in order to extend your ability to enjoy it more throughout the year.



Tuesday, September 05, 2006

Safe...and Sorry: Are Child Safety Programs Turning Kids into Ninnies?

Article Repost from Macleans Magazine -- Sept 4, 2006


Safe...and sorry

Have years of child-safety programs turned our kids into ninnies?


CYNTHIA REYNOLDS

Ute Navidi, who heads a British children's charity called London Play, was walking along a Berlin street, on a break from an international conference, when she stopped to watch a group of primary schoolchildren in the schoolyard. She couldn't believe what she was seeing. "If this was London they would have called in search- and-rescue," says Navidi. "Or the health inspector would have come in and shut the place down." Young German kids were chopping wood with axes and mixing soups in a cauldron over an open flame. Children who looked like kindergarteners were manoeuvring kayaks on their own in a large pond while the adults chatted on the sidelines. The scene got Navidi worried -- and not for those kids. The risks the German children were learning to manage far surpassed anything schoolchildren in her city were doing.

In Britain, as in Canada, the U.S. and elsewhere, an overwhelming concern for safety -- along with a desire to safeguard against child-injury litigation -- has completely altered the landscape of kids' activities over the past 20 years. On playgrounds, it's meant lowering jungle gyms, rubberizing play surfaces, and eliminating play areas with ponds and trees. Some districts have gone as far as banning swing sets and posting signs prohibiting running. Last summer, a father in St. John's, Nfld., was forced to dissemble his children's tree house after a neighbour complained to the city; he was told it didn't meet building codes. A pamphlet on playground safety from Halifax-based Child Safety Link sets out stringent recommendations to parents: ensure your child never jumps off a moving swing; be on the lookout for tripping hazards like tree stumps; never let your child wear a scarf, because she could choke.

But recently, a growing number of people have reached an epiphany similar to Navidi's: despite our best intentions to protect children, our actions have produced the opposite effect. Studies are showing that kids have become less capable, less self-reliant -- essentially, more vulnerable to harm. And fear of strangers, in part, has helped drive a push toward organized and indoor activities. "The stranger-danger message," the Canada Safety Council wrote in its October 2005 newsletter, "can hinder children from developing the social skills and judgment needed to deal effectively with real-life situations." Last year, an 11-year-old Utah boy lost in the woods for four days prolonged his ordeal because he'd been hiding from the "strangers" trying to rescue him. A 2005 British study found that one of the main reasons kids don't go outside is fear of being abducted.

Instead, kids today spend 90 per cent of their days indoors. By some estimates, time spent in lessons and other adult-managed activities has doubled over the past two decades to five hours per week. And kids spend more time with parents -- eight hours more with their mothers and four more with fathers -- compared with 1981. The radius of play of the average nine-year-old has shrunk to one-ninth of what it was in 1970.

It's all working to keep kids from doing what they've done since humanity began: going outside into spaces where they can jump streams, climb trees, use sticks as swords, and do unjust things to ants and flies. According to a decade's worth of largely overlooked research, this free play is key to developing physical, mental and emotional skills -- such as self-reliance, risk-taking, altruism and delayed gratification -- that help children form into competent, functioning adults. "We seem to need to get our hands dirty and our feet wet from time to time," says Richard Louv, author of last year's landmark Last Child in the Woods, which compiled the mounting evidence supporting the need to reconnect kids to the outdoors. "We don't fully understand why that's necessary to our mental and physical health, but there does seem to be something there."

Which is why a new effort is under way to get kids into wild spaces -- or perhaps getting the wild spaces to them. "Society seems to think we can keep children cocooned until they're 18 and then they'll just fly out like some well-formed butterfly," says Navidi. She's working with her government on several pilot projects to design quality spaces throughout London for kids to play. In Canada, too, parents, principals and charities, concerned about the kinds of adults we are beginning to churn out, are looking for ways to turn the tide, and they're starting by redesigning school grounds.

At Bala Avenue Community School, a primary school in Toronto, principal Laurie Prince, now retired, was responsible for transforming a third of the flat grounds into a playground with logs, boulders, a half-dozen trees, grassy hills, a sand pit and a garden. Prince had to overcome many parental what-ifs, like the possibility of bees nesting in the logs, but Bala now exemplifies the part schools can play in enriching kids' outdoor experiences. Seven school boards are financially supporting such projects across the country, and big-name corporate sponsors such as Toyota, CIBC and Franklin Templeton are donating money.

While the idea of greening school grounds, as it's called, has been around for over a decade, it's just started to gain momentum in the past couple of years. In Canada, Evergreen, a national organization working to preserve and create green areas in urban communities, has helped develop and fund projects that bring in logs, boulders and trees, or more elaborate designs, such as trails, vegetation that attracts city creatures, and areas for building structures like forts. A growing part of the thinking is to encourage free play with sand, sticks, water, leaves. "That kind of open-ended play is really desirable -- things you can manipulate," says Cam Collyer, head of Evergreen's Learning Grounds program. It sparks creativity, problem-solving and imaginative thinking.

It may all sound a little warm and fuzzy, but a study sponsored by the Public Health Agency of Canada this year found that of 59 elementary schools that had been recently greened, 81 per cent reported more civil behaviour among students, and 83 per cent more social play. Other studies show a positive correlation between greened school grounds -- especially those used as outdoor classrooms -- and academic performance. The ultimate illustration of this is in Finland, where children don't learn to read until they're 7 and are instead immersed in engaging outdoor play. Finland is the world leader in literacy. Contrast that with Canada, says Tracy Penner, a Vancouver-based landscape architect who consults for Evergreen, where "kids are driven to school, picked up, put in a program, or sit at home on the computer. For some, their whole outdoor experience is available only at school -- this is their backyard."

On a broader scale, Parks Canada and Nature Canada have jointly begun to invest dollars in reconnecting kids to rugged outdoor spaces. Launched in 2005, the Parks and People program has whisked eight-year-olds by plane to the southern tip of the Queen Charlotte Islands' Gwaii Haanas National Park Reserve and organized wilderness camping training in New Brunswick. In just two years, it will have taken 27,800 kids into the country's parks. "No one's really focused on the young generation," says Darcie Laur, the program's community outreach coordinator. "But we're starting to recognize how important that is."

For Ute Navidi, it's nothing less than getting parents to recognize the importance of childhood, and it's become a mission. When she asks audiences to reminisce about their childhood experiences, they recall excitedly how they climbed trees, got dirty, built forts and broke a lot of limbs. Within a couple of minutes, she says she has trouble quieting them down. But when she asks about the same risk-taking opportunities for their kids, they balk. "I wouldn't let my children do that" is the common refrain. "We don't know what the long-term effects of this downsized childhood are going to be," she says. "We can only imagine."



www.davidmontie.com

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