Martin Holladay of Green Building Advisor wrote a great article on our house. Read it here: http://www.greenbuildingadvisor.com/blogs/dept/musings/vermont-house-uses-only-half-cord-firewood
It’s currently -9° out with a real feel of -26°. We had a small fire in our tiny wood stove earlier today which kept us warm and cozy all day. We just lit another fire – because we can. The inside temp quickly shot up 3 toasty degrees. I’d say that whole passive solar/well insulated thing is working quite nicely. Keep warm, New England!
Finally… the long overdue post. I am going to keep this to mostly pictures. We have had a lot going on and we are getting closer to moving in – which should happen by the end of the month! Tomorrow appliances arrive and later in the week we should have countertops installed, bathroom floor tile put in, lighting installed, and much more. It’s a busy week!
We still have a few more things to do on the exterior (first floor solar overhang/awning, porches, etc) but for now we’re really concentrating on the inside so that we can start moving some things in.
Click on any of the pictures to open up a slideshow view. Enjoy!
First off, the roof is done. Corrugated galvalume roofing came precut to order. Some drip edge put down then the panels were pre-drilled. Then screwed to the roof sheathing.
The chimney for the wood stove with its supports and snow guard. Kinda like a cow catcher on a train. Keeps sliding snow from wiping out the chimney.
The insulator was onsite the last few days blowing insulation in the wall cavities and attic spaces. He’s got a sharp aluminum tube on the end of that hose. Like a big hypodermic needle. He jams it in a section, blows it full of cellulose, then tapes over the holes.
A supply box with dust cover.
Flexible HDPE medical grade tubing. Not sure what the medical application would be. Seems like it would hurt.
Tubes are run from vents to main unit through the open web floor joists.
A rubber gasket like this…
…is put over the last ridge of the pipe.
A little liquid soap is used to lubricate the fittings and the tube is pushed in. Notice the grooves cut into the side of the female fitting.
Once the tube is in place a clip is inserted in the grooves to hold the tube in place.
At the other end the tubes are run to the distribution manifold on the HRV. A hacksaw is used to cut them to the correct length.
The tubes are connected to the manifold in the same manner as the vent boxes.
In our place there are six supply and six returns. The silver boxes are “silencers” that remove fan noise.
The silencers are attached to the main unit that contains the fans, filters and the heat exchanger.
The outside supply and return ducts will be run later. The windows are coming up from D.C. next week. Once they’re in it’s onto siding and sheet rock.
The house is now all nicely wrapped in a weather barrier called Mento. The experts will tell you that house wrap has come a long way since Tyvek was first introduced. Mento “manufactured by the German company Pro Clima and distributed in North America by Four Seven Five, is a vapor-permeable, non-woven, polypropylene weather-resistive barrier designed to help buildings meet Passive House standards.” Essentially, the Mento forms the outer barrier for the blown in insulation, which will sit between that and the OSB (plywood) that you could see in earlier pictures. Wood strapping, helps add additional support, as well as serve as anchor for the siding (pine ship-lap). The Mento allows moisture to easily dry out and therefore prevents mold, rot, etc from forming inside the wall structure.
While the Mento is establishing a clean, fresh environment for the insulation, the rest of the house, thanks to all that blue tape you saw earlier, is staying well sealed and isolated from the outside temps. This is where the air source heat pump, also known as reverse-cycle air conditioner comes in. Simply put, the ASHP transfers heat. Using a heat exchanger very similar to that of a refrigerator or air conditioner, the ASHP works somewhat in an opposite way. Rather than having all that heat build up around the coils behind a refrigerator, the ASHP pumps the thermal energy from outside, into the house. And in the summer, it can work in the opposite direction, by pumping the hot air outside and supplying cooler air inside. The small, high-efficiency, Mitsubishi unit we are installing has the ability to heat our entire 1800sf for less than 25% of standard energy costs. Yay for reduced utility bills!
Lately, it seems the “big” decisions are becoming more of a daily routine, versus the weekly spacing we enjoyed for so many months. I always feel a little anxious any time we make a bigger decision, because I put so much weight into “doing it right the first time.” When the house is done, if there are any aspects that we’re unhappy about, we really will have no one to blame but ourselves. Building from scratch seems to involve more pressure for me. In the past, when we have bought houses, we have obviously really loved them in order to put such a large investment into them. But you can totally love a house you buy and still have lots of “this house is great, buts…” I wish the entry way was larger, I wish there was another closet, I wish the dishwasher was on the other side of the sink, I wish we had a light switch here….
So here we are and it’s time to make the decisions as to what light fixtures we want and where all the lights and switches are going to go. In order to do this, we printed up a nice large floor plan, used some building materials & saw-horses to mock up our kitchen counters, island & dining table, and walked around the house – many times – pretending all the reasons we might be entering or exiting a room/area. With only a few minor disagreements and compromises, we were able to work everything out to the best of our ability in a few hours. And yet, I am sure we still will have 1 or 2 regrets/should haves. In an effort to avoid a regret in the dining & living room areas, we are leaving some lighting placement for the future. We have a general of idea how we’ll live in the space, but realize, we need a few weeks to a month of actually living there with our stuff to get the perfect flow.
But for now, we get what we get, because the electricians have completed their wiring project. No longer can we walk between the wall framing from room to room, as we now have what looks like a giant maze of yellow wire. I keep waiting for things to slow down, but thus far, it still feels to me like it’s moving quickly.