Library

Report summarizing results of testing emerging combo water heating technologies under controlled laboratory operations, that differentiate the performance of the various packaged equipment configurations being offered.

Report describing research conducted to support California’s Title 24, Part 6 Building Energy Efficiency Standards by analyzing the impact of installation location and ventilation on heat pump water heater (HPWH) performance, emphasizing the need for proper installation to maximize efficiency...

Report about a two-year study intended to document the energy performance of a house in each sub-metered area and compare the performance to modeled predictions and to assess the thermal comfort performance of the single point mini-split heat pump.

Report identifying the target market for solar water heaters and potential pathways and cost/performance targets that must be met for these systems to realize large energy savings.

This webpage provides an interactive walk-through of the installation of a heat pump water heater in a home in Maine, including how-to videos of the installation, video interviews with the homeowners, installer, and utility program partners, and visual tours of the home before and after installation...

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.

Siding installation guide for Ply Gem Siding Group products.

Article describing methods for insulating and air sealing vented and unvented roofs in various climates zones.

Document describing good practices for insulating basements in new and existing homes.

Project discussing buried or encapsulated ducts and their pros and cons.

Document pertaining to design and application guidance for combination space and tankless domestic hot water heating systems used in residential buildings, based on field evaluation, testing, and industry meetings.

Report describing the installation and operation of forced-air heating and domestic hot water combi systems in residential homes.

This Measure Guideline provides design and construction information for a deep energy enclosure retrofit solution of a flat roof assembly.

Report on two approaches to retrofitting existing double-stud walls.

Report describing a deep energy enclosure retrofit solution for insulating mass masonry buildings from the interior.

Document providing information on basement insulation, air sealing and water management retrofits.

Report describing wall assemblies that use layers of rigid exterior insulation thicker than 1-½ inch and require a secondary cladding attachment location exterior to the insulation.

Information sheet providing information on installing Rigid XPS foam board insulation to existing brick masonry walls.

Report summarizing the importance of properly insulating and air sealing masonry walls, providing step by step instructions and approaches.

Document covering the technical aspects of buried and insulated ducts (BEDs), as well as the advantages, disadvantages, and risks of BEDs compared to alternative strategies.

Report describing the use of mineral fiber insulating sheathing in a high performance enclosure retrofit package.

Document developed to help residential new construction builders transition from using a three-coat stucco system to a one-coat stucco system installed over 1 in. of expanded polystyrene (EPS) insulation.

Document developed to help residential builders and retrofitters transition from tank-type water heaters to tankless water heaters.

Document providing renovators and retrofit contractors an overview of considerations when including wall air sealing and insulation in an energy retrofit project.

Web resource that lays out the pre-work considerations, methods and finishes for installing mechanical insulation.

Website providing medical information about malignant mesothelioma, a cancer related to asbestos exposure.

This paper discusses model validation using data from three thermosiphon systems.

Report providing extensive guidance on controlling moisture in building envelopes through proper selection and installation on air, water, thermal, and vapor barriers.

EPA guidance document providing information on moisture control in buildings.

Report about exterior sheathing insulation and inward driven moisture issues.

Report explaining moisture-related concerns for high R-value wall assemblies and discusses past Building America research work that informs this study.

The next generation of building enclosures is a key step toward achieving high-performance goals through decreasing energy load demand and enabling advanced space-conditioning systems. Yet the adoption of high-R enclosures and particularly high-R walls has been a slow-growing trend because...

Report on the use of vapor diffusion ports to reduce moisture issues with buried ductwork in unvented attics in hot-humid climates.

Report describing evaluation of several configurations of wall assemblies to determine the accuracy of moisture modeling and make recommendations to ensure durable, efficient assemblies.

Report detailing a three-winter study on unvented roof assemblies in a cold climate, assessing insulation material, ridge diffusion vent presence, vapor control membranes, relative humidity, and interstitial airflow. Results indicate that utilizing air-permeable fibrous fill insulations in unvented...

Report detailing a three-winter study on unvented roof assemblies in a cold climate, assessing insulation material, ridge diffusion vent presence, vapor control membranes, relative humidity, and interstitial airflow; results indicate that utilizing air-permeable fibrous fill insulations in unvented...

Report providing guidance to air-sealing multifamily homes.

Study in which a central heat pump water heater system was monitored in detail and used to create a model for assessing similar systems in various climates.

Report demonstrating cost-effective energy savings targets as well as improved comfort and indoor environmental quality associated with deep energy retrofits by a large public housing authority as part of a larger rehabilitation effort.

Guide providing information on controlling attic ductwork sweating.

Report studying the specification, implementation, and energy savings from an EER in a group home, with an energy savings goal of 30%.

Report highlighting the evaluation methods used and extent of wind washing found in a study analyzing wind washing in thirty-two two-story homes.

Report presenting the results of a study evaluating retrofit solutions for addressing the effects of wind washing on homes.

Report providing information to researchers, utility program managers, and building owners interested in controlling heating energy waste and improving resident comfort.

Article from Smarter Homes NZ on home building techniques that incorporate passive cooling.

Report providing information about improving the energy efficiency and long-term durability of the buildings that are being reconstructed post Katrina in New Orleans.

Report providing information about improving the energy efficiency and long-term durability of the buildings that are being reconstructed post Katrina in New Orleans.

Article investigating how a linear input/output relationship can be used as a simple model of the performance of a combination hydronic heating system over heating only, DHW only, and combined loads.

Technical report describing research aimed to provide window manufacturers with foundational guidance for installing windows in walls with continuous insulation (CI), addressing critical aspects such as evaluating common installation methods, establishing acceptance criteria for window performance...