Library

A guidebook helping builders in hot-humid climates design and construct homes for energy efficiency, durability, health, safety, and comfort.

Report describing measures that builders in mixed-humid climates can use to build homes that have whole-house energy savings of 40% over the Building America benchmark with no added overall costs for consumers.

Report describing an air distribution system composed of a series of uniformly-sized ducts that terminate in rooms throughout the home and return to a central manifold, similar in fashion to a “home-run” cross-linked polyethylene plumbing system.

Document providing guideance and considerations for duct design in an energy efficient house.

Report describing methodology to assess and improve the accuracy of whole building energy analysis for residential buildings.

Webinar answering code-related questions on duct leakage tests, moisture levels in attics and crawlspaces, combustion equipment in conditioned attics, ventilation in multifamily buildings, and continuous insulation in residential construction.

Article describing selecting insulation for minimizing condensation risks.

Guide describing measures that builders in the cold and very cold climates can take to build homes that have whole-house energy savings of 40% over the Building America benchmark with no added overall costs for consumers.

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.

Document about testing software predictions of retrofit energy savings in existing homes.

Report summarizing the key opportunities, gaps, and barriers identified by the national laboratory white papers discussing long-term 50% energy reduction goals.

Report about a hybrid condensing water heater (thermal efficiency = 0.973, energy factor = 0.95) installed in an occupied home in Sacramento, California, and monitored for one year to determine the actual in situ efficiency.

Part I of the Guide addresses walls constructed with 2x6 wood frame studs, wood structural panel (WSP) sheathing as exterior sheathing, gypsum board as interior sheathing, and a cladding system installed over WSP sheathing in low-rise residential buildings up to three stories in height. Walls with...

The Guide addresses walls constructed with 2x4 wood frame studs, wood structural panel sheathing (WSP) as wall bracing and added backing for foam sheathing, a layer of rigid foam sheathing insulation up to 1.5 inches thick over the WSP, and a cladding system installed over the foam sheathing in low...

Part I of the Guide addresses walls constructed with 2x6 wood frame studs, wood structural panel (WSP) sheathing as exterior sheathing, gypsum board as interior sheathing, and a cladding system installed over WSP sheathing in low-rise residential buildings up to three stories in height.

The Guide addresses walls constructed with 2x4 wood frame studs, wood structural panel (WSP) sheathing as wall bracing and added backing for foam sheathing, a layer of rigid foam sheathing insulation up to 1.5 in. thick over the WSP, and a cladding system installed over the foam sheathing in low...

Document providing a resource to help contractors renovate historic houses, while addressing issues such as building durability, indoor air quality, and occupant health, safety, and comfort.

Document presenting a simple starting point to determine the most cost-effective Energy Savings Measure Packages (ESMP) for existing homes to achieve 15% and 30% savings in 37 locations across the United States.

Research study that utilizes EnergyPlus equipped with the moisture capacitance model to analyze the indoor relative humidity in three home types.

Expert meeting held to discuss simplified space conditioning systems in low load homes, including the relationship between advanced thermal enclosures, space conditioning systems and comfort.

Information sheet with an analysis of mini split heat pump systems.

Report describing a simple and general way to generate House Simulation Protocol (HSP)-consistent internal sensible and latent loads in unoccupied homes.

Document providing supplemental information for code enforcement professionals about header hangers in bearing walls.

Report providing information about energy-efficient heating, ventilation, and cooling (HVAC) equipment options to help homeowners cut their energy use, reduce their carbon footprint, and increase their homes comfort, health, and safety.

Report describing the objective evaluation of space conditioning interactions between heat pump water heaters and home heating systems during winter 2016-2017, revealing a smaller than anticipated impact on space conditioning loads.

Report presenting lab evaluation of five heat pump water heaters available in the US market today.

Report proposing mini-split heat pumps as a new retrofit option to replace resistance heating in the Pacific Northwest.

Report documenting the measured performance of six residential ENERGY STAR vapor compression dehumidifiers.

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

Report describing the sealing and insulating of HVAC duct systems in existing homes.

Document illustrating guidelines for efficient installation of interior duct systems in new housing.

Report describing the most cost-effective ventilation and indoor air quality solutions for multifamily homes that meet ASHRAE 62.2-2016.

Report covering the fundamental waterproofing strategies for tub and shower assemblies.

Report describing an analysis method for determining optimal residential energy efficiency retrofit packages and applies the analysis method to a 1960s-era home in eight U.S. cities.

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.

Document providing supplemental information for code enforcement professionals about headers in nonbearing walls.

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

Research study about two test homes that are examined with the goal of providing case studies that could be applied to other similar New England homes.

Report covering the reconstruction of flood damaged homes.

This project analyzed combined condensing water heaters or boilers and hydronic air coils to provide high efficiency domestic hot water (DHW) and forced air space heating. Called "combi" systems, they provided similar space and water heating performance less expensively than installing two...

This research paper outlines residential HVAC advanced controls and sensors. It includes a technology review, applications, maintenance and commissioning, occupant behavior and a summary of the state-of-the-art technologies for advanced controls for residential HVAC.

Report about the impact on the loads when common safety factors are applied to the load calculation process using two houses that meet the 2009 IECC prescriptive path modeled as the accurate baseline.

Document identifying differences between the requirements for construction documents for high performance housing and the documents that are typically produced for conventional housing.

Research study providing a comparison of selected retrofit activity typically done, versus that same retrofit activity approached from an integrated high performance remodeling and quality management perspective.

Report covering coating and back venting wood based claddings and trim.

Conference paper describing testing of the performance of fasteners used to attach rigid foam insulation to the exterior of walls.

Research study investigating the thermal efficiency of fasteners, namely drywall screws and siding nails, in high-performance wood-framed walls.

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.

Research study describing a detailed 3D computational fluid dynamics model that evaluates the thermal performance of uninsulated wall assemblies.

Report documenting the process and outcomes involved in achieving the U.S. Department of Energy Zero Energy Ready Home (ZERH) program certification standards while helping homebuilders in Climate Zones 5 and 6 in the Upper Midwest achieve ZERH certification.