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ANNUAL ENERGY
CONSUMPTION- 135.4 Mbtu *
(Per heating season @ 70°F indoor temp.)
* Above average consumption due to structure’s volume vs. floor area (cathedral ceilings and clearstory rooms) and glass vs. wall surface ratios. |
ANTICIPATED
HEATING COST- $1,666.77
(Per heating season @ $.147 per kwh)
Cost To Environment- 15,476 Lbs.
(CO2 Emissions Per Year) |
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| BUILDING ENVELOPE: |
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Energy Star
Recommendation |
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| Roof Rafters
Above Gnd. |
R-38 kraft faced fiberglass with styrovent |
R-38 |
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| Exterior Walls |
R-19 kraft faced fiberglass batts within 2 x 6 framing cavities
Vapor semi-permeable structural OSB exterior sheathing
Air and water infiltration barrier- all exterior walls & gables are wrapped with vapor permeable spun high density polyethylene fiber building wrap |
R-13 |
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| Windows & Full Glass Doors |
U.35/ SHGC .40 Andersen series 400 double hung dual glazed. Argon gas filled with metallic oxide low emissivity coating
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≤U.40/≤SHGC.45
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22% glazed surfaces as a percent of conditioned living area |
≤21% |
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| Exterior Doors |
U.15 Thermatru fiberglass clad polyurethane foam core with tight seal weather stripping |
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| Basement Walls |
R-13 foil faced fiberglass blanket insulation affixed to ten inch thick continuous reinforced concrete wall. R-19 rear walls |
R-13 |
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| Basement Slab |
R-7.5 polystyrene foam board horizontally placed against exterior perimeter wall extending two feet underneath basement slab at frost footings. One half inch polystyrene capillary and expansion break entire perimeter |
R-10 @2’horizontal |
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| Envelope Air Infiltration |
To be tested as specified by “Blower Door” testing and analysis
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≤7ach50 pascels |
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| Roof Eave Overhang |
1’-0” overhang for summer shading, winter solar gain, and roof run off protection. South & West elevations full porch roof- 8’ overhang equivalent |
1’-9” optimal
(window header height= 1’-1”) |
| Complete three page Home Energy Analysis available pre-construction to facilitate energy related systems selection. |