- ETW
This is another alternative to the minimum code required basement insulation in DOE climate zones 4 and higher. This construction uses a 2x4 framed wall against the concrete foundation with R-13… Read More
Cold
- ETW
This construction uses insulated concrete form (ICF) with 2" XPS rigid insulation on the interior and exterior of the concrete foundation wall. The slab is insulated with 2" XPS rigid insulation… Read More
Cold
- ETW
4" XPS rigid insulationDampproofingConcrete foundation wall2" XPS rigid insulation under slab Thermal ControlThis proposed wall system has an installed insulation R-value of R-20 and results in… Read More
Cold
- ETW
This construction uses continuous R-10 or R-13 batt insulation on the interior of the concrete foundation wall. The slab is left uninsulated and the rim joist is insulated with batt insulation. … Read More
Cold
- ETW
This construction uses 2x4 framed wall offset 2.5" from concrete with 6" open cell low density spray foam (R-21) between and behind the stud wall. The slab is insulated with 2" XPS rigid insulation… Read More
Cold
- ETW
The figure below shows 2" XPS or foil-faced polyisocyanurate rigid insulation and 6" open cell low density spray foam insulation installed on the interior of the rimjoist and foundation wall, and 2"… Read More
Cold
- ETW
This construction uses 2 layers of 2" XPS rigid insulation on the exterior of the concrete foundation wall. The slab is insulated with 2" XPS rigid insulation under slab and the rim joist is… Read More
Cold
- ETW
Dampproofing
4" XPS rigid insulation
Two 2" concrete foundation walls
2" XPS rigid insulation under slab
Thermal Control
This construction strategy has an installed insulation R-value of R-20,… Read More
Cold
- ETW
This construction uses 2 layers of 2" foil-faced polyisocynaurate insulation against the concrete foundation and a 2x6 framed wall with R-19 unfaced fiberglass insulation in the stud space. The slab… Read More
Cold
- ETW
This construction uses 3 1/2" closed cell high density spray foam insulation on the interior of the rimjoist and foundation wall, and 2" XPS rigid insulation under slab. As shown below, the spray… Read More
Cold
- ETW
This construction uses 2" XPS rigid insulation against the concrete foundation and a 2x6 framed wall with R-19 unfaced fiberglass insulation in the stud space. The slab is insulated with 2" XPS rigid… Read More
Cold
- ETW
This construction uses 2" XPS rigid insulation against the concrete foundation and a 2x4 framed wall with R-13 unfaced fiberglass insulation in the stud space. The slab is insulated with 2" XPS rigid… Read More
Cold
- ETW
This construction uses 2" XPS slotted rigid insulation (attached to wall through 1x3 furring strips) and 2" foil-faced polyisocyanurate rigid insulation (attached to furring strips) against the… Read More
Cold
- ETW
This construction uses 2" foil-faced polyisocynaurate insulation against the concrete foundation and a 2x4 framed wall with R-12 cellulose insulation in the stud space. The slab is insulated with 2"… Read More
Cold
- ETW
This construction uses 1" XPS rigid insulation against the concrete foundation and a 2x4 framed wall with R-13 fiberglass insulation in the stud space. The slab is left uninsulated and the rim joist… Read More
Cold
- ETW
This retrofit house is located in Westford, MA (Cold Climate). It involved rebuilding the roof to convert the attic into living space using closed-cell spray foam insulation in the rafter cavities.… Read More
Cold
- ETW
This retrofit house is located in Quincy, MA (Cold Climate). It involved building an additional floor and a new unvented roof with two layers of 2” foil-faced polyisocyanurate rigid insulation above… Read More
Cold
- ETW
This retrofit house is located in Northampton, MA (Cold Climate). It involved adding two layers of 2” foil-faced polyisocyanurate rigid insulation above the roof deck and netted dense pack cellulose… Read More
Cold
- ETW
This retrofit house is located in Newton, MA (Cold Climate). It involved adding two layers of 2” foil-faced polyisocyanurate rigid insulation above the roof deck with 2x4 furring above the insulation… Read More
Cold
- ETW
This retrofit house is located in Milton, MA (Cold Climate). It involved replacing the asphalt shingles on the roof and adding 8” closed-cell spray foam insulation in the rafter cavities. The walls… Read More
Cold
- ETW
This retrofit house is located in Millbury, MA (Cold Climate). It involved adding two layers of 2” foil-faced polyisocyanurate rigid insulation above the roof deck and open-cell spray foam insulation… Read More
Cold
- ETW
This retrofit house is located in Lancaster, MA (Cold Climate). It involved building an additional floor and a new roof with a raised heel truss and 18” of blown cellulose insulation at the attic… Read More
Cold
- ETW
This retrofit house is located in Jamaica Plain, MA (Cold Climate). It involved adding 1” foil-faced polyisocyanurate rigid insulation and closed-cell spray foam insulation below the roof deck. The… Read More
Cold
- ETW
This retrofit house is located in Gloucester, MA (Cold Climate). It involved adding three layers of 2” polyisocyanurate rigid insulation above the roof deck and netted cellulose insulation in the… Read More
Cold
- ETW
This retrofit house is located in Brookline, MA (Cold Climate). It involved retrofitting the walls with two 2” layers of polyisocyanurate rigid insulation to the exterior of the existing wall… Read More
Cold
- ETW
This retrofit house is located in Belmont, MA (Cold Climate). It involved adding three layers of 2” foil-faced polyisocyanurate rigid insulation above the roof deck and netted cellulose insulation in… Read More
Cold
- ETW
This retrofit house is located in Belchertown, MA (Cold Climate). It involved adding R-56 closed-cell spray foam insulation in the rafter cavities and over the face of the rafters. A new 2x4 wood… Read More
Cold
- ETW
This two-story enclosure with a basement is designed for Vineyard, UT (Cold Climate). The roof features Structural Insulated Panels (SIPs) with cedar shingles. The 2x6 advanced wood frame walls are… Read More
Cold
- ETW
This one-story slab-on-grade enclosure is designed for Tucson, AZ (Hot-Dry/Mixed-Dry Climate). The flat roof is insulated with cavity insulation in the roof truss and features a rubber roofing… Read More
Hot-Dry/Mixed-Dry
- ETW
This two-story slab-on-grade enclosure is designed for Sacramento, CA (Hot-Dry/Mixed-Dry Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and… Read More
Hot-Dry/Mixed-Dry
- ETW
This two-story slab-on-grade enclosure is designed for Orlando, FL (Hot-Humid Climate). The roof features Structural Insulated Panels (SIPs) and a standing seam metal roof. The walls consist of 6”… Read More
Hot-Humid
- ETW
This one-story enclosure with a crawlspace is designed for Montgomery, AL (Hot-Humid Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and a… Read More
Hot-Humid
- ETW
This one-story slab-on-grade enclosure is designed for Minneapolis, MA (Very Cold Climate). It features a vented roof with cavity insulation in rafter cavities and rigid insulation at the underside… Read More
Very Cold
- ETW
This two-story slab-on-grade enclosure is designed for Maitland, FL (Hot-Humid Climate). It features an unvented roof with cavity insulation in rafter cavities, and clay tiles. The 2x6 advanced wood… Read More
Hot-Humid
- ETW
This one-story enclosure with a basement is designed for Louisville, KY (Mixed-Humid Climate). It features a vented roof with cavity insulation in rafter cavities and rigid insulation at the… Read More
Mixed-Humid
- ETW
This two-story slab-on-grade enclosure is designed for Houston, TX (Hot-Humid Climate). It features an unvented roof with cavity insulation in rafter cavities, and asphalt shingles. The 2x6 advanced… Read More
Hot-Humid
- ETW
This two-story enclosure with a basement is designed for Denver, CO (Cold Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and asphalt shingles… Read More
Cold
- ETW
This one-story enclosure with a basement is designed for Concord, MA (Cold Climate). It features a vented attic with a raised heel truss and R-50 insulation at the attic floor, and asphalt shingles.… Read More
Cold
- ETW
This two-story enclosure with a basement is designed for Chicago, IL (Cold Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and asphalt shingles… Read More
Cold
- ETW
This two-story enclosure with a crawlspace is designed for Charlotte, NC (Mixed-Humid Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and… Read More
Mixed-Humid
- ETW
This two-story enclosure with a basement is designed for Boston, MA (Cold Climate). It features an unvented roof with open-cell spray foam insulation and vapor retarder paint or coating, or… Read More
Cold
- ETW
This two-story enclosure with a basement is designed for Beacon Hill, MA (Cold Climate). It features an unvented roof with 6” closed-cell spray foam insulation in rafter cavities, and slate roofing… Read More
Cold
- ETW
This two-story slab-on-grade enclosure is designed for Atlanta, GA (Mixed-Humid Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and asphalt… Read More
Mixed-Humid
- ETW
This two-story enclosure with a crawlspace is designed for Aspen, CO (Very Cold Climate). It features an unvented roof with low-density spray foam insulation in rafter cavities and 1” XPS rigid… Read More
Very Cold
- ETW
This one-story slab-on-grade enclosure is designed for Albuquerque, NM (Hot-Dry/Mixed-Dry Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and… Read More
Hot-Dry/Mixed-Dry
- DTW
The current owners of this 1993 Colonial style house purchased the home in 2003. After living in the house for several years, they started planning a project to make improvements that would better… Read More
Cold
- DTW
Habitat for Humanity of Greater Lowell bought the land on which to build the Westford House from the town of Westford for $1. Habitat then partnered with Building Science Corporation, the community,… Read More
Cold
- DTW
The Westford Habitat House is a 1,400 square foot, one-and-a-half story single-family house with three bedrooms, two baths and an 816 square foot basement located in Westford, MA (Cold Climate). It… Read More
Cold
- DTW
Homes built prior to 1980 make up 80% of the housing stock in the United States, and are responsible for a majority of the residential energy use in the country. The Architecture 2030 goals call for… Read More
Cold
- DTW
In 1986, Pulte Homes in Tucson was plagued by customer complaints and even law suits for construction and material defects in their homes. Today, customer satisfaction is above 90% and the Pulte… Read More
Hot-Dry/Mixed-Dry
Pagination
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