Guide describing how to insulate the sill beam or sill plate on the exterior side in a way that allows drying to the exterior, as part of an exterior wall upgrade.
Report explaining moisture-related concerns for high R-value wall assemblies and discusses past Building America research work that informs this study.
Guide describing how to provide a continuous water control layer across the roof assembly by sealing all penetrations for pipes, vents, etc. in existing roofs.
Case study describing novel technique for installing exterior spray foam on foundation walls that uses high-pressure water sprayer and a “hydro vac” to remove dirt along the foundation wall.
Research report describing study of exterior retrofit approach for air sealing, insulating, and water management conducted by the NorthernSTAR Building America Partnership team run by University of Minnesota.
Video describing an “excavationless” retrofit technique developed by the University of Minnesota to install exterior insulation around the foundation of an existing home by using high-pressure water to cut a trench through the dirt along the edge of a concrete foundation, remove the mud with a...
Case study describing a 2013 DOE Building America Top Innovation for the installation of rigid foam insulation on the exterior of home roofs and walls as a thermal, air, and moisture barrier.
Case study describing a basement retrofit of a 1916 home in Madison, Wisconsin that involved installing dimple drain mat and closed-cell spray foam on interior of basement wall and an interior footing drain to manage moisture before finishing an existing basement.
Guidebook providing useful examples of high performance retrofit techniques for the building enclosure of wood frame residential construction in a cold and somewhat wet climate.
Report providing extensive guidance on controlling moisture in building envelopes through proper selection and installation on air, water, thermal, and vapor barriers.
Article describing the evolution of the IRC to permit class 3 vapor retarders (latex paint) in walls coupled with exterior continuous insulation to allow drying and reduce condensation risk.
Presentation describing the challenges of insulating an existing basement, presented to the Building America residential energy-efficiency stakeholder meeting.
Report describing how to construct a frost protected shallow foundation (FPSF) as a practical alternative to a deeper, more-costly foundation in cold regions with seasonal ground freezing and the potential for frost heave.
This report will review, and summarize the current state of understanding and research into enclosures with higher thermal resistance, so-called “High-R Enclosures.” Recommendations are provided for further research.
Case study describing a DOE Zero Energy Ready Home 2014 Housing Innovation Award winner that scored HERS 45 without PV and 32 with PV and is the first home in the world to use a tri-generation system to supply electricity, heating, and cooling on site.
Guide describing how to install a capillary break under a slab foundation using either polyethylene sheeting or rigid insulation installed over aggregate or over sand and geotextile matting.
Guide describing installation of a fully sealed continuous weather resistant barrier to provide a drainage plane to keep rainwater out of above-grade walls.
Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.
Information guide describing how to apply a whole-house approach to home improvement with energy efficiency upgrades, improved indoor air quality, and increased comfort.