Paperless Gypsum Board?

(Crossposted at 3rings)

Who wants to breathe mold?

There’s been a growing awareness of indoor air quality, with the American College of Occupational and Environmental Medicine (ACOEM) estimating that 10 percent of Americans are directly allergic to mold.That’s about 30 million people who can potentially be sickened just by walking into a building. Mold is an even bigger concern for at-risk populations, like children (it’s estimated that mold exposure doubles a child’s chance of developing asthma), the elderly, or those already sick.

It turns out mold’s major foothold comes in wallboard, and in particular the organic paper cladding, which in damp environments can provide the perfect home for mold to thrive in. This is why the Oakland children’s hospital went with DensArmor Plus paperless drywall from Georgia Pacific.

Instead of paper, the panels feature a glass-mat surface on both the front and back, plus additional moisture-resistance features. DensArmor Plus® scored a 10, the highest level of performance for mold resistance, under ASTM D 3273 testing.

The panels are recommended for all interior uses, but are especially useful in environments that might be exposed to moisture, including bathrooms, kitchens, and basements, in both residential and commercial settings. And moisture can be a problem anywhere: Georgia Pacific points out that “In today’s tightly sealed structures, inner wall cavities present ideal growth opportunities for mold, simply because of the moisture concentration, the lack of air circulation and the temperature differential from one side of the wall to the other. Thus, mold’s greatest potential for growth is out of sight.”

There are a couple of additional benefits. Because of its low emission of volatile organic compounds (VOCs), DensArmor Plus® is the first, and so far the only, gypsum drywall to be GREENGUARD Indoor Air Quality Certified®. It also received GREENGUARD Children & Schools Certification, for a product that can help reduce exposure of schoolchildren to indoor air pollutants, which means use of DensArmor Plus® gives LEED certification points two separate ways in school construction.

Another benefit: it’s so moisture-resistant that Georgia Pacific offers a 90-day in-place warranty against exposure damage, meaning wallboard can start going up even before the building is completely closed in. Imagine how much help that can be on a tight construction schedule!

Jared Diamond on Sustainability

Jared Daimond, author of "Guns, Germs and Steel" and the recent "Collapse", has a great article on consumption vs sustainability.

The population especially of the developing world is growing, and some people remain fixated on this. They note that populations of countries like Kenya are growing rapidly, and they say that's a big problem. Yes, it is a problem for Kenya's more than 30 million people, but it's not a burden on the whole world, because Kenyans consume so little. (Their relative per capita rate is 1.) A real problem for the world is that each of us 300 million Americans consumes as much as 32 Kenyans. With 10 times the population, the United States consumes 320 times more resources than Kenya does.

His conclusion? Because we waste so much, we can actually maintain a fair amount of our current lifestyle while bringing our consumption factor down by at least half.
Worth reading the whole thing...

Bending the Shire

This is very cool... If you have a spare $700,000, and don't mind living in Bend, Oregon, there's a community-based, green-construction development going up with houses based on Tolkien's Shire.

Okay, very loosely based. As any self-respecting Hobbit knows, proper houses are built by digging into the sides of hills, are constructed in tunnels rather than with walls and roofs, and have round doors, not standard-issue rectangular ones.

But if you can get past that, the houses do look fantastical.

The Cutting Edge is Green

(Published in Luxury Life & Style)

Living on the cutting edge is the ultimate luxury.
And in building, the cutting edge is green.

Some things, it takes a while before the mainstream catches up. For a while - years, even - they remain the purview of the cranks and the hobbyists, folks who dump every spare minute and every spare dime into their crazy projects – and if you aren't lucky, they’ll tell you all about it until your eyes glazed over.

The automobile was like that, until Henry Ford made the it available for everyone. And these days we just take cars for granted.

It’s the same with green building. From the time just a few years ago when it was a specialized field that only a few people were interested in, it’s now exploding into the popular consciousness… and onto the landscape.

(More...)

“People are starting to demand this of the marketplace,” notes architect Peter Barsuk of Hermosa Beach. A member of the Gensler firm in Santa Monica, Barsuk is a board member of the US Green Building Council’s Los Angeles Chapter, and was also involved in setting up Hermosa’s Energy Patnership.

“Ten to fifteen years ago,” he notes, “there were very few architects and contractors that were practicing green building. Nobody understood what it meant or what it was. And if you asked suppliers what materials went into their products, they wouldn’t even tell you.”

What has changed things? In part, it’s pocketbook – as energy costs have risen, people see the impact every month on their bills for heating and air conditioning. And as asthma rates skyrocket, people are thinking more about indoor air quality.
But it’s more than that.

“It may look like an extravagance, but really, it’s spending wisely,” says Peter DeMaria of DeMaria Design Associates and Logical Home in Manhattan Beach.

“Theres a stigma that for something that’s a luxury, somehow there’s waste. But you look at refined designs, like autos, these are as fine as can be. We’re seeing the same thing now that happened with the automobile, or with MP3 players - the market is starting to drive all these alternative materials.”

And there’s an incredible range of options now – so don’t worry if you’re more in the market for a Lexus than a Bentley. The principals apply whether you’re building your dream home, or simply sprucing up your current place.


One thing that’s easy to do, but terribly important for your health and that of your family, is cut out Volatile Organic Compounds, or VOCs. Toxic compounds like formaldehyde are commonly used in furniture, carpet, paint and other building products; we’ve learned that these substances leak out into the air of your home for years, damaging young lungs, and leading to asthma and other respiratory problems, especially in children.

Designer Sarah Bernard recalls, “I was working with a client who had learned that out-gassing from upholstery foam and furniture glue can cause birth defects. She was pregnant at the time, and we were bringing in a lot of furniture – well, that’s a pretty reasonable concern.”

What to do? She works with natural products – hardwoods, linen and wool aren’t processed with chemicals (although you should check for stain-proofing or flameproof coatings). Get furniture that uses staples instead of glue. “Sometimes it’s not even a matter of giving up something,” says Bernard, “but approaching things in a different way.”

And use low-VOC paints, which are now widely available.

“When you use a regular paint,” notes Bernard. “you fill the house with ‘new paint smell’ – those are the gasses being released. With low-VOC there’s minimal gasses, so minimal smell, which is nice for the home-owner. And at this point, there’s almost no price difference.”

VOCs are an issue in new construction, as well. Plywood is notorious for out-gassing formaldehyde into living space. And while there are companies now making VOC-free plywood, many architects are looking at wood as very “last century”.

Patrick Killen, of Studio9one2 in Hermosa, is one of them. “Why,” he asks, “do we build multi-million dollar homes with a material – wood – that expands and contracts with water, attracts termites and mold, and just doesn’t last?”

There are a variety of alternatives, including metal studs – used in commercial construction for years – and a variety of alternative cladding materials.

“Instead of using plywood,” says DeMaria, “we’re using Dens-Guard gold, by Pacific Materials. It’s gypsum-based. Mold proof! Great R value, easy to handle and easy to cut.... With all its benefits, you’ll see this being used more and more often, and then the price will drop.”

DeMaria is also involved in an exciting alternative form of construction – he’s got a residence going up in Hermosa Beach based around four steel shipping containers.
“It’s just an extension of modular construction, really,” he says.

Even so, they had a hard time getting the design approved – it can be tricky, working on the bleeding edge this way - but he thinks it’s a great demonstration project.
“We found this amazing spray-on insulation, SuperTherm. It was used on the space shuttle, the coating is the thickness of a credit card, but has an amazing R value – R30. And at just $1.50 sq ft, it’s not that much more expensive. But in order to get our title 24 report approved, we had to work directly with the State Energy Commission. We must have spent at least 40 hours on the phone. They had never seen anything like this stuff before.”

Several designers are working with prefabricated living spaces, including DeMaria, who is launching a separate firm to deal with prefab. Another is Jennifer Siegal, whose DesignMobile firm is in the development stages to put one of her Swell houses in Manhattan Beach.

“Swell House gets assembled like Legos at your dream spot,” she notes, “and features Biofiber (a recycled cabinet composite made from sunflower seeds), finishing material made from recycled newspapers, and "ply-boo" (renewable bamboo) flooring.”
And where a typical architect-designed residence can cost $400 to $500 per square foot, her Swell Houses go for $200.

Prefab is good for the big-picture environment: it minimizes wasted materials, and also cuts transportation costs (since both materials and workers go to one central location). And it’s great for the local neighborhood environment – instead of months of banging and dust and trucks coming and going, you get one easy delivery.
Another thing that’s hot right now: Tankless hot water heaters, both for new construction and for home upgrades.

“Instead of heating up hot water and then having it sit there, wasting energy, these units flash-heat the water as you need it,” explains James Meyer of LeanArch, a design and build firm with roots in Manhattan Beach. He’s been using these heaters in the South Bay houses he’s been building (including the home of LL&S publisher Todd Klawin). “You save energy, you never run out of hot water, plus you save a lot of space, which in the South Bay with its tiny lots makes a big impact.”

These may cost $600 to $900, instead of $250 for a conventional tank heater – but what’s it worth to add an extra 90 cubic feet of space to your house?

Another new feature is in-floor heating (well, its been in use since Roman Times, but not the way they do it today). Meyer loves to use in the South Bay because it again combines environmental friendliness with space savings.

“With forced air, you kill a lot of space with ductwork,” he notes. “Instead, we build radiant heating into pipes below the floor. Instead of howling fans blowing dry air throughout the house, along with dust, pollen and mold, you have a nice quiet system that puts heat out from the bottom up.”

DeMaria has it in his own home, and notes, “This pays a dividend in the long run. And your feet are warm! My youngest son is 2.5 years old, and he’s rolling around on the bamboo floor, happy as if he’s in the bathtub.”

You can use similar systems for pool heating. Rick White of California Solar has a couple of South-Bay projects that use solar absorption.

“We now have an in-deck system. At one project in Palos Verdes, we’re putting a heat-exchange system under the concrete of the tennis court. The concrete heats up, and we pull the heat off the surface, put it into a medium that then runs it around to the pool. It heats the pool AND cools the tennis court.”

The cost has come down - you can solar heat a pool for $4500-$5500 dollars. Typically that means the break-even point is just 2 to 3 years.
And of rooftop solar has changed in a big way, too.

“I now have solar panels that are terracotta colored, so they don’t stand out like big black panels,” says White. “We specialize in photovoltaic panels that are integrated into roofing tiles. Match the roof right in, so the look is totally integrated.”

Meyer has a project going up at 217 9th Street with a 3 KW array of photovoltaic panels. They cut back on power purchases, and they’re tied into the grid, so when you’re not using power during the day, you feed power back into the grid when you’re not using. Most architects are now working this sort of package into their new designs.

“We have a ways to go,” notes Killen. “We need to put the kind of effort into solar and wind that we put into marketing the iPod. Solar has been around since the ‘70s, so compared with the MP3, progress has been slow. Right now we have the beginnings of building a foundation, but we’re only scratching the surface.”

Almost as important as heating is cooling. At the container house, DeMaria has installed an industrial-sized 12-foot fan – made by the Big Ass Fan company (its mascot is a donkey).

“Air conditioning will suck up 70 percent of your electricity,” he says. “If you’ve got your building properly designed to take advantage of your prevailing winds, you don’t need AC. And the fan keeps everything inside cooled off. The blades are similar to what you’ll find on a helicopter, cast aluminum and aerodynamically correct. You could blow the dishes right off the table if you want to.”
James Meyer’s 9th Street project uses the entire back of the house, which is a three-story open stairwell, to create a stack effect, drawing air up from the ground floor and cooling the entire house.

Likewise, projections over the windows cut their exposure to direct sunlight, making a huge impact on the need for AC.

“The standard Modern design is a big glass box that didn’t pay any attention to appropriate site orientation,” notes Killian, “and had no overhangs to cut exposure of the sun to all that glass. We’re learning…”

Another way to cut the unwanted energy provided by the sun is going with a roofing material that’s light, rather than dark. It’s estimated that dark roofs can get up to 180 degrees on a sunny day; some of that heat leaks into the house, and the rest is radiated back out, heating up the neighborhood. Going light with roofing could cut summer urban temperatures by several degrees – and saving millions of dollars in AC costs.

If you want to go really green in a big way, the ultimate is a Green Roof. Instead of standard roofing material, you have a full environment built on top of the building, complete with soil, grass, trees and shrubs.

The firm of Marmol Radziner is doing one at a project overlooking the ocean in Palos Verdes, which also features a solar deck around the pool and other green features (Marmol Radziner is also getting into prefab and modular building). And Steve Lazar of Lazar Design/Build is working with Anthony Poon of Poon Design to put a mixed-use office and condo building at 838 Manhattan Beach Blvd with 2500 square feet of green roof.

“You can walk from your unit,” says Lazar, “out onto a roof of real dirt, real trees, grass, shrubs. Your own open space that’s alive, organic. Much nicer than a concrete jungle.”

The soil/gravel system is carefully engineered proper drainage, while holding the right amount of water without too much expansion or contraction. Aside from aesthetics, it provides spectacular insulation, there’s less runoff for the sewer system, and it provides a benefit of better air quality to the inhabitants of the home as well as the neighborhood.

One other way to go: think smaller and smarter.

Part of smarter is taking advantage of the great southern California climate by integrating indoor and outdoor space.

“We had a client in Hermosa with a first-floor view from Malibu to San Pedro. They totally fell in love with it. That’s a million dollar view; you don’t mind spending $50,000 on triple-track doors that open up completely to give them that unobstructed view. On the container house, we have airplane hangar doors that open up on two sides to integrate the interior space with the outside.”

Killen has worked a similar magic at his Widmann Residence in Hermosa, where lots of triple-track sliding glass effectively double the amount of living space, and Meyer has used overhead garage doors and triple-tracks to open his houses up.

“It’s like being in a tree house,” he says, “why would you not want to take advantage of this amazing climate? People would never have done this 20 years ago. I think it’s great we’re breaking all these rules and making it possible for people live in ways that never would have been conceived of before.”

Meyer has pushed the envelope in other ways, like building in charging stations for electric cars. “It’s a lot like music,” he says. “The greatest creativity comes when people aren’t afraid to break the rules.”

And just as with music, the most creative periods happen when the patrons – the folks making the commissions, be they emperors, industrialists, or entertainment lawyers – are willing to take risks, too.

“Everything we’ve tried, we’ve gotten a great response to,” Meyer says.
Killen would like to keep pushing the envelope in other ways – and he recognizes that some of them are a little harder for the patrons to hear.

“Thinking green isn’t just about picking some nice materials out of a catalog,” says Killen. “But we’re doing things now that will have a huge impact down the road.
That’s an uplifting feeling. That’s something that some of our clients are very much in tune with. I’m not the only one saying ‘we can make a difference’.’

Going Solar

(Appeared in the Iranian Jewish Chronicle)

"Going Green" isn't just good for the planet – it's good for the pocketbook, too

We've been hearing a lot lately about "saving the earth". But the Jewish concept is much older. We call it "Tikkun Olam," and halachically, it's the idea that G-d didn't finish creation, but put each of us here to do our small part to complete the work.

One form of saving that's come into prominence this year is solar power. It saves energy, it saves money, and it's a growing part of the work to save the planet.

Technology has been moving forward, but the biggest change in the solar environment comes from the political side: at both the state and federal level, governments are encouraging people and businesses to go solar.

(More...)

Putting money where their mouth is

"California has shown some incredible leadership," says Isaac Hamadan, of Solar Energy Exchange. "The California Solar Initiative makes direct grants that cover 23 percent of your costs."

On top of that, the Federal Government provides direct tax credits for 30 percent of the total bill for homes and businesses (although home use is capped at $2000 right now). Plus, you can depreciate it over five years. And of course, it provides electric power, cutting your power bill by 80 percent or more depending your configuration.

"The cost of electricity is going up every year," says Abe Moradian of Beverly Hills, "so I think I'll get my investment back sooner than they think. Living here, my bills are particularly high. I've had months where my bill is $300, and months when I'm heating my pool where it goes as high as $600."

As president of AMC International, a trade consulting company, Moradian knows how to figure a balance sheet. But, he says, making this decision was about more than the bottom line.

"It's clean energy. And it's good for energy independence, and that's good for everybody."

Moradian is a pretty typical solar customer: he's doing an installation on a pre-existing home, with panels built on to the roof, plus he's getting a passive solar heating system built around his pool.

Pool systems run around $5,000, and can pay for themselves in just three years. Full-house systems run from $20,000 to $40,000, and can pay for themselves in 10 years or less. Plus, Hamadan notes, you can finance them with a home equity line of credit, they add value to your home, and they're property-tax-exempt.

Doing good and looking good

For those who don't relish the though of industrial-looking black panels overlooking their front yard – the past couple of years have seen some amazing new products hit the market.

"I now have solar panels that are terracotta colored, so they don't stand out like big black panels," says Rick White, or California Solar. "We specialize in photovoltaic panels that are integrated into roofing tiles. They match the roof, and they're built right in, totally integrated with the other roofing tiles."

Likewise, for those with shingle roofs, there are now solar panels that match those. The solar becomes just one component to a standard roof. Plus they last longer than standard shingles or terracotta – and unlike standard roofing which bakes in the sun on hot days, these panels take the sun's energy and turn them into power – making a significant dent in air conditioning bills, as well.

"The system panels I install are warranteed for 25 years," says Hamadan. "That's confidence. How long will they actually last? We think 30 years or more."

Becoming part of the system

One of the most exciting things happening now is what's called "Grid-tied" systems. With this setup, your solar system is linked in with the power grid. During the hot mid-day hours when you're generating lots of power, the excess flows into the power grid, actually running your meter backwards! You're credited for the power during the day; after the sun goes down, you pull the power you were credited back in from the grid.

You can also get a system with full battery-backups, so you can store the power yourself. Or, you can combine the two.

"The other cool thing," says White, "it'll manage your energy. Some people, especially businesses, are on time- of-usage charges – buying electricity during peak periods will charge you more than at 3 a.m. when demand is low. This system fills up the batteries in the middle of the night when energy is cheap, and then you use it during the day when energy is expensive."

Becoming part of the solution

It's nice when you can combine doing the right thing with doing the smart thing. Most forms of Tikun Olam are like that, when you look at them closely.

"I believe it's the future," says Hamadan. "It's the only way we can really survive – we can't move forward with all this usage of crude oil. Electrical demand keeps rising – we can meet that with solar, instead of building more plants that burn coal and oil and gas, and pollute the air our children have to breath.

"This is much better for the earth, and for us."

Ca-Boom, Baby

Cross-posted at ecofabulous

The West Coast Independent Design Show, AKA Ca Boom 4, takes flight today in the Barker Hangar at Santa Monica Airport. No, you won't find a biodiesel Learjet (sorry, John Travolta) but this is the bleeding edge for making the stationary parts of your life eco-conscious.

There's light power: the incredibly cool built-in LED applications of Element labs. There's solar power: the warm power of the sun from California Solar. And there's star power (if only by association): Willard Ford (Harrison's son) gathers ultramodern sustainable teak furnishings from around the globe. And you'll find much more – including companies and products so fresh they don't even have websites yet!

Ca Boom 4 runs Friday, March 30 through Sunday, April 1, 2007, at the Santa Monica Airport's Barker Hangar in Santa Monica, CA. For more information visit caboomshow.com.