In late October a crew from Expert Insulation filled and packed the outside six-inch cavity of our house walls with cellulose insulation. In January they came back to fill the attic with 30 inches of loose-fill cellulose. Just 10 days ago they were back again to pack the interior cavity of our exterior walls with […]
We’re in the depths of the longest, coldest, snowiest winter southeast Minnesotans have seen for years. The photo below was taken on February 5. A few things have changed on the exterior of the house since then, but the view was much the same yesterday—white sky, blustery wind, and several more inches of soft, mounded white everywhere. […]
Through early December, we stepped into the house and into a hole. It was like being a child in a giant’s house, standing on tip-toe or jumping up to see out, with ceilings extra high.
The extra depth was there because we’ve chosen to install a 13-inch insulated subfloor system directly on the ground, over a six-inch layer of […]
Shortly after our last post, temps dropped drastically. Just in time—the day before, and as the deep freeze moved in—the roofers moved their scaffolding and backfill went in around the foundation. Excavator Stan Hongerholt set records for work accomplished in one day! Below, John and Stan made plans and John shoveled fill under the front […]
“Super-insulated houses require ultra-performing windows and doors.” That’s Passive House architect Christi Weber’s opening line regarding windows and doors on the “project overview” page of our Root River House site. “It would be pointless to work on the home’s envelope, only to cut a bunch of holes in it and fill them with low-quality, leaky […]
It’s cold, but we’re thankful for a string of sunny, dry, slightly warmer work days. We’re hustling to take advantage of them before the weather shifts, but the next big tasks—like installing the layers of rigid insulation that support the first floor and getting that floor base in place, grading around the house, and installing […]
A week ago the crew from Expert Insulation put dense pack cellulose insulation in the exterior cavities of our house. It was an exciting day, and both John and I were there to watch the first of the two-part insulation process. Exciting, you wonder? Well, when you consider that the heating and cooling comfort of […]
We woke up early today and headed out to move some sand in our storm/root cellar before rock goes into open areas in the floor this week.
We designed this space for shelter from storms, but also to keep garden food fresh all winter and to hold a 1000 gallon rain water collection tank. Water […]
Climate Zone 6 (cold/moist)
Latitude: 43° 44' 18'' N
Longitude: 91° 54' 48'' W
Net Treated Floor Area: 1,514 SF
Gross Square Footage (House only): 2,210 SF
Glazing: U-0.10 BTU / hour / sq. ft.
Solar Heat Gain Coefficient (SHGC): 0.48”
Frame: U-0.19 BTU / hour / sq. ft.
Specific Primary Energy Demand (Source Energy Demand): 12.1 kBTU / sq. ft. / year
Specific Space Heat Demand: 7.0 kBTU/sq. ft. / year
Peak Heating Load: 7,047 BTU / hour
Space Cooling Demand: 0.44 kBTU / sq. ft. / year
Peak Cooling Load: 3,625 BTU / hour
Pressure Test Goal: Whole House Air Changes Per Hour (ACH) = 0.4 ACH 50