100 years ago, old-growth trees were used to make columns, girders, and planks for commercial buildings. Butler Square in Minneapolis is a good example of this applied construction technology. It was a sound construction strategy; 100 years of service is impressive. However, limitations arose from the availability of old-growth trees to be used for this purpose.

Canadian Rockies, Banff

Gunter Dittmar was my icon in graduate school. He was a despondent German expatriate bombed into depression while growing up in Berlin during the Allied blitz. Amid his slow and thoughtful speech was a bit of genius. He understood that the "problem solving process" and the “problem seeking process” involved keeping the "levels of abstraction" aligned and not mixed up.

For example, you can't solve the big picture if you're focused too early on how many doorknobs and how much they cost each. Ultimately you care about the doorknobs, but only in the right sequence and at the right time.

          “The is nothing more worrisome that the wrong question answered well”            (quote from South American Architect on TED talks)

The reasons for the mix-ups are many are 1) participants competing for influence in the process and sowing mixed levels just to be in the conversation, 2) sometimes the logical structure of the issue is simply misunderstood and the conversationalists get down the rabbit hole, 3) the participating silos have standards of practice that run in opposition to one another, 4) the participants don't like one another, and 5) disorderly allocation of risk (hours of effort in dollars) etc .

In any event put first things first as you move from concepts to details.

100 years ago, old-growth trees were used to make columns, girders, and planks for commercial buildings. Butler Square in Minneapolis is a good example of this applied construction technology. It was a sound construction strategy; 100 years of service is impressive. However, limitations arose from the availability of old-growth trees to be used for this purpose.

Butler Square, LLC , by Jim Steffel

50 years ago mechanical designers in the Minneapolis area took the innovative step of applying emerging heat pump technology to indoor climate applications. It was revolutionary. Systems were simplified and installed costs plummeted. It was a serviceable technology for many commercial applications.

Fast forward to today, and the old is being made new again. The fabricated, structural timber industry now makes components to build frames and floors without relying on old-growth trees. To the contrary, 12 to 14-year-old trees are farmed and harvested to make glue-laminated products for the construction of timber frames and CLT floor systems (cross laminated timber).

Application of heat pumps is being used for high-efficiency indoor climate systems.  The hydronic water piping systems move the energy around the building to where it's needed. The side of the building in sunlight sheds its excess heat (aka cooling) to the shaded side of the building requiring heating. This distribution by way of the heat pumps leads to reduced energy consumption for indoor climate and comfort.

It turns out that the many energy-saving advantages of wood when combined with high-efficiency indoor climate squarely addresses the issues of energy conservation needed in this era of global warming brought by man's activity.

Care taken in the building industry can make a big difference;  join the movement!

(see the blog post at this site: “Timber and Advanced Energy Project Planned in the Upper-Midwest.”)