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Green Building Products and Technologies at the Cobb Hill Co-Housing Project
computer-generated transcript - may not be 100% accurate
" Albee O'Hara are the designated contractors for all fourteen buildings here and I guess part of the requirement is that. They have experience building green right well how do you do. And -- the fact that this -- this is a very nice approach to this first building here with kind of -- post and beam feeling. Now what makes it green or sustainable. Well all of the framing that you see on this outside porch is native hemlock it's the trees are cut locally and sawed. And locally as well. And the siding the siding is eastern white pine that comes from a sustainable forestry operation."
" OK and the sustainability. Of a forestry operation like this what can you define that what that means that with that land will continue to be able to be worse and."
" For. Centuries and sustain that kind of harvest and sustain the people who are."
" Isn't that doesn't mean some liberals who -- you -- it is selective harvesting as opposed to scraping it clear right. Good well that's wonderful to know is happening right here in New England shall we go and take a look inside."
" Now is all the framing lumber that's used in here also sustainable yesterday except these LVL's right here -- from certified forestry operation. Right in New England yes so the two by tens ours certified -- in the the OS BO SB comes from a mill -- me. That is. Now I've seen -- you've got vinyl tubing throughout here that would imply radiant heat right this is cross linked polyethylene tubing that's used in the radiant heat in the floor and we're also using it in the domestic hot water distribution OK and then do you have to insulate. Below that underneath this radiant. Tubing will be a foil backed fiberglass -- OK and then the regular drywall application that's correct all right is this the utility room over -- sensitive. So. You have. All these tubes to circulate hot water and what's the source of the heat. The source of the heat isn't large gas supply wood boiler. That is in a remote building and columns through these tubes underground to each house okay. So that it's basically one giant furnace operation but this is supplying air right. No this is hot water only color through these -- OK and then what he got over here this is. The propane fired boiler that will be used as backup for. Worth winter heating system as well as supplying the domestic hot water for units and then this is just super insulated storage at this storage tank that's of a size that's large enough to use for the solar hot water as well. Excellent and then once. Other things not seen before but many viewers haven't seen what do you call these. This is -- facts he reclaim our invests. Reclaimed from the heat from the drain water. Which is then transferred to the feed water which goes around in these copper tubes around the outside of the dream part that's another wonderful savings --"