This is a guest post by Dave Bennink, owner of Re-Use Consulting.

I recently was asked to speak at the California Resource Recovery Association Conference in Palm Springs.  I know, Palm Springs, it sounds like a vacation, but the high for each day was 112 degrees.  Anyway, this year’s theme was ‘zero-waste’.  The CRRA had asked me to discuss building deconstruction in the context of it helping to achieve zero waste goals in many California cities.  It caused me to pause and think about what zero waste means and how to achieve it.  I came up with a couple of interesting points.

Betraying the mission:

Some of the projects that I have been involved with or have read about that have strived for zero-waste or very high diversion rates may have succeeded in doing so, but at what cost?  It may have taken weeks to accomplish and cost much more than demolition.  Therefore, even though the project stands as an example of what is possible, the general public may see this as confirming their belief that building deconstruction (and perhaps other green building methods) cost too much and take too long. 

Looking at this another way, we see that the single project may divert 70 tons from the landfill during

Is this going to a site or from one?

its 3.6 week schedule.  A less agressive approach that we frequently follow would divert 60 tons in 1.2 weeks or 180 tons during the same 3.6 week schedule.  So, in the end, who is closer to zero-waste? 

There are different ways to achieve zero-waste, by achieving zero-waste on one project and building off of that and using it as a bar that others can reach, or to achieve high-diversion on 10 projects at a cost-competitive price and time-sensitive schedule.  In the end, we really do need the zero-waste projects to push us forward, we just need them to admit that we still have a ways to go before achieving zero-waste on a regular basis. 

Designing for disassembly:

When planning our presentation, we reviewed past projects that we had completed and sent the materials in three directions: reuse, recycling and disposal.  Our focus was on how we could have eliminated the disposal category on projects performed in the ‘real world’.  Our conclusion was that if we design waste into a structure, it is not surprising that we get waste out of projects. 

Designing for disassembly is a movement in architecture to admit that their structures will likely not live out their entire lifespan and that when the building is removed someday in the future, the materials that make up that structure will be worth harvesting and that the design should favor this disassembly.  The more fasteners, ADHESIVES, and other waste producing or labor consuming building systems that are battled when the building is taken apart, the more unlikely that deconstruction will be a viable choice for building removal. 

Having deconstructed 500 structures in the last 16 years, RE-USE Consulting has gained a unique perspective on this problem and is moving ahead with its own solutions to be applied to today’s buildings.  We hope that tomorrow’s buildings will be made of reusable panels that can be reused and are perhaps constructed on multiples of 16″ or 24″, floating floor panels, paneling set in channels with fewer fasteners, and well thought out use of adhesives.  

I have seen what zero waste looks like.  It is an amazing thing.  Imagine a job site where the building was removed and the stacks of materials sitting on the ground confuse the passer-by.  Is a building about to be built, or did it just come down? 

Should we focus first on zero-waste, or should we focus on increasing the percentage of materials that are diverted for reuse?  In the end, the reuse of materials can be many times better than simply recycling them due to the preservation of energy, job creation associated with it, and from resource conservation.

This is a guest post by Dave Bennink, owner of Re-Use Consulting. 

This last week has been full of bad news relating to major corporations cutting jobs.  These job cuts are nothing compared to the amount of jobs that have been shipped overseas in the past decades.  Did you know that the City of Buffalo used to have

Image courtesy Dave Bennink

600,000 people in it and now it only has about 290,000?  First the jobs left and then the people followed.  This has left Buffalo wondering what to do with tens of thousands of abandoned homes. 

So where are we heading?  Jobs disappearing, economic slowdowns and global warming are just the start of our problems.  Fortunately, there is some good news to share:  The building deconstruction industry is creating thousands of green collar jobs, and these jobs cannot be shipped overseas! 

For years, building deconstruction has been much slower and more expensive than demolition.  Building deconstruction is the systematic disassembly of a structure to maximize reuse and recycling.  In recent years, hybrid deconstruction has allowed deconstruction and adaptive reuse companies to take down buildings faster and cheaper, completing 2,000-square-foot homes in 3 to 4 days as one example.  Even with these improvements, building deconstruction still creates 10 to 20 times more jobs than demolition while hoping to achieve an on-site landfill diversion rate of 70 percent or more (before comingled recycling options). 

These are all local jobs that cannot be shipped overseas and we are working to make them living wage jobs requiring different levels of experience and potentially launching workers into other related careers.

One thing that is clear to me is that building owners don’t want their structures demolished, they just want them removed.  Almost everyone I have talked to would rather see the their building moved intact, deconstructed, or at least salvaged or even preserved in place through adaptive reuse as long as it doesn’t take much more time and it doesn’t cost more money.  That helps the building deconstruction contractors by basing their efforts on a solid foundation. 

People realize that deconstruction creates more jobs, helps the environment, preserves local architectural elements, and assists lower-income home owners to maintain their homes.  It is also a sustainable effort, unlike some green solutions that just slow down the problems.  Deconstruction is not just saving energy and resources compared to producing all of those materials new again, but reversing problems like global warming and natural resource depletion. 

In Buffalo, we have begun to think of the streets full of abandoned homes as an asset to the community instead of a liability.  If it is decided that they must be taken down, then by deconstructing them, some of the value they hold is returned to the community, and I can tell you after 16 years in this field, it’s a great feeling knowing that you are making a difference. 

I am excited about efforts by the city of Seattle and King County, among others, to promote building deconstruction. 

The Building Materials Reuse Association is leading the way, holding a conference on the subject in Chicago in April 2009 (www.bmra.org).  Cities and groups across the Country are starting job training programs by forming deconstruction crews.  Demolition contractors are converting to deconstruction companies by performing deconstruction when their clients ask for it or it makes economic sense.  General contractors hoping to keep their crews from quiting in slow times, are beginning to offer deconstruction to their clients, knowing that they may be able to provide work to their laid-off crews.  Some schools are considering classes on deconstruction and some businesses are forming around the sales of the salvaged materials or the manufacturing of products (like tables, chairs, etc.) made from reclaimed materials. 

So if you are tired of this economic slow down and want to make a difference, join us by considering building deconstruction and considering buying reclaimed materials.  It’s  ’buying local’ and ‘employing local’ all at the same time while heading toward our goal of zero waste.

- Dave Bennink, RE-USE Consulting