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July 19, 2013
The purpose of this guide is to provide useful examples of high performance retrofit techniques for the building enclosure of wood frame residential construction in a cold and somewhat wet climate. The examples demonstrate effective management of liquid water (rain and ground water), airflow, water vapor flow and heat flow. Retrofit ventilation approaches are reviewed because mechanical ventilation is taken to be a necessary component in high performance buildings. This guide does not address mechanical heating, cooling or water heating systems beyond outlining basic combustion safety measures.
Existing homes present an incredible variety of conditions. The variations of building techniques over time and across different regions combined with the inherent individuality among builders lends to a mind-boggling variety of configurations in existing housing stock. Rather than try to encompass all of the possible solutions responding to each of various existing conditions, this guide details a limited number of options for deep energy retrofit of common configurations found in wood framed New England homes. Through its experience in guiding high performance retrofit projects, BSC has found the solutions in this guide to be applicable to the vast majority of circumstances. Some retrofit projects will require solutions that are not described in this guide.
Building America Case Study: Whole House Solutions for Existing Homes—National Grid Deep Energy Retrofit Pilot: Massachusetts and Rhode Island
BA-1311: Evaluation of Two CEDA Weatherization Pilot Implementations of an Exterior Insulation and Over-Clad Retrofit Strategy for Residential Masonry Buildings in Chicago
Cold Climate: National Grid Deep Energy Retrofit Pilot Program—Retrofit and Addition to 1900s Duplex
Cold Climate: National Grid Deep Energy Retrofit Pilot Program—Three-Story Victorian Partial Retrofit
Cold Climate: National Grid Deep Energy Retrofit Pilot Program—Second Floor Reframing Comprehensive Retrofit of 19th Century Small Colonial