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Reviewing Energy Efficient Products in the Home

At the Cobb Hill co-housing community, Bob and GC Mark Albee look at some of the energy efficient and eco-friendly products begin used. The home's large south-facing windows provide significant passive solar gain. They are Thermotech pultruded fiberglass windows from Canada and have Styrofoam insulation in them. For cost reasons Mark is using Thermotech's double glazed window with one low "E" coating. Because the glass and fiberglass have a similar expansion coefficient, you get a window that is tight through all seasons. The flooring is yellow birch from a mill in Maine. It's a certified sustainable product that is made from short pieces that would ordinarily be discarded, and there is a lot of color and grain variation to it creating a distinctive look.
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Reviewing Energy Efficient Products in the Home

  computer-generated transcript - may not be 100% accurate

" The windows are pretty enormous for a small building like this, aren't they?"

" Well, we wanted to get as much passive solar gain as we could from these south facing windows."

" Why that view is fabulous though, isn't it?"

" Isn't it nice?"

" So what kind of windows are these?"

" They are Thermotech windows. They're Canadian fiberglass window."

" So it's a fiberglass."

" They call is a pultrusion."

" It's pultruded."

" Yeah."

" Which is a little bit different than your normal vinyl or wood or aluminum windows."

" And you've got insulation inside there."

" That's right. The pultrusions all have a starter foam insulation in them."

" And what kind of, you know, what kind of other features do you get from this kind of window?-Well, this particular cross section shows some example of a triple-glazed window. In this application, we opted for cost reasons to go with a double blaze with 1 low E coating on it."

" Uh huh. And so, you've got the kind of situation here where I think expansion and contraction is pretty much at the same rate so you'd end up with a nice tight window, don't you?"

" That's correct. With 2 dissimilar materials like glass and fiberglass, the expansion coefficient is quite similar so that you may gain a tight window though all reasons."

" And that's important up here, isn't it?"

" Up here it's very important."

" The floor is pretty distinctive. What is it?"

" This is yellow birch flooring. It comes from a mill up in Maine. It's certified flooring."

" How come so many short pieces? Well, that's a part of the process. It's flooring that would normally be discarded because they are short. There's a lot of color, variation green, variations in it."

" So it's a savings in terms of the cost of the flooring?"

" That's correct. We're able to use the product that would normally be not used in simple flooring."

" It's got to be labor intensive to put all the flooring down?"

" It's very labor intensive."

" Yeah."

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