Library

Code describing the requirements for existing site-built single-family homes to receive roof-to-wall retrofits when re-roofing.

A document aimed at reducing the vulnerability of a gable end roof to wind damage in a hurricane.

Report describing the hurricane retrofit guide with focus on walls and wooded framed walls.

Webpage providing curriculum with links to presentations and problem sets for teaching an understanding of sizing cold climate heat pumps.

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.

Paper providing a comprehensive overview of HVAC system design considerations and challenges specific to multifamily residential buildings, focusing on optimizing performance and addressing common issues.

Software tool available free online that can help calculate heating and cooling requirements to accurately size HVAC equipment in as little as 15 minutes.

Correcting pressure imbalances in your HVAC system can result in a healthier, more efficient home.

Report evaluating the relative effectiveness of various control and distribution strategies to improve hydronic space heating performance in existing low-rise multifamily buildings

Report presenting improved air conditioner (AC) and heat pump (HP) modeling methods in the context of whole-building simulation tools.

Presentation on Improving Air-Conditioner and Heat Pump Modeling.

Article describing the effect metal roofs have on thermal performance in hot-humid climates.

Report examining the impacts that common installation practices and age- induced equipment degradation may have on the installed performance of natural gas furnaces, as measured by steady-state efficiency and AFUE.

Article describing the second step of a three-step process for the installation a tubular skylight, using peel-and-stick flashing tape instead of roof cement, and integrating the roof underlayment with the flashing.

Article describing how to counterflash a chimney by tucking the upper pieces of counterflashing into the chimney mortar joints and overlapping them over the various pieces of base flashing, which are nailed to the roof deck.

Article describing the insurance savings of a home with a hip roof versus a gable roof from the perspective of an insurance advisor.

Fact sheet describing the newly developed Ventilation-Integrated Comfort System (VICS) that reduces space requirements and eliminates costly ductwork for separate heating, cooling, and ventilation systems, all while enhancing performance, addressing the demand for energy-efficient homes, and...

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.

Article describing how the configuration of surrounding buildings affects the wind loads on a hip roof in a low-rise building.

Report describing the results of a 21-home field study investigating the effectiveness and failure rates of whole-house mechanical ventilation systems installed in Florida homes over the last 15 years.

Research report discussing the reduction of HVAC energy consumption to meet U.S. greenhouse gas targets and DOE's energy-efficient building goals. It introduces iComfort, an IoT-based system for optimizing home comfort and energy savings.

Report discussing how to create livable space in the attic that meets IRC code requirements by either creating a ventilated roof assembly, or and unvented attic assembly.

Report describing ways to retrofit a home to make it more hurricane resistant.

Article showing steps for kick out flashing at roof-wall intersection.

Report on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.

Guidance on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.

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.

Article describing a technique for installing a skylight and avoiding potential water leaks with the use of a peel-and-stick (or self-adhesive) membrane under the flashing.

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.

Web article describing many ways homeowners, contractors, and builders can make homes more resistant to hurricanes, tornadoes, high winds, floods, and hail.

Fact sheet describing important roof-to-wall and wall-to-foundation connection details for masonry construction in coastal areas, including load paths, building materials, and reinforcement; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Article describing the flashing of roofs and what to look for, targeted at home inspectors.

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

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

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

Document intended for designers and installers of hydronic heating systems interested in maximizing the overall system efficiency of condensing boilers when coupled with baseboard convectors. It is applicable to new and retrofit projects.

Report providing step-by-step instructions for heating contractors and hydronic designers for selecting the proper control settings to maximize system performance and improve response time when using a thermostat setback.

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

Document with evaluation of 14 heat pump water heaters (including three recently released HPWH products) installed in existing homes in the northeast region of the United States.

Document covering installation of high efficiency gas furnaces, including when to install a high efficiency gas furnace as a retrofit measure, how to identify and address risks, and steps to follow for the selection and installation process.

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

Study investigating measured cooling energy savings in homes across the U.S. from the installation of roofing with higher solar reflectance.

Research study outlining results of monitoring a low temperature heat pump.

A presentation describing the standards regarding who is responsible for what part of the design to ensure the roof truss is properly designed and braced.

An installation training manual discussing the installation of metal roofing materials and related accessories, for both new construction and retrofit projects.

A Recovery Advisory guide reccomending practices for designing and installing metal roof systems that will enhance wind resistance in high-wind regions (i.e., greater than 90-miles per hour [mph] gust design wind speed).

Report covering the selection of roof vents for rainwater resistance.

This report investigates whether mini-split heat pumps can live up to their potential for one market segment: multifamily retrofits.

Website describing Minnesota Power’s New Construction Energy Efficiency program that promotes building practices and technologies that enhance new residential construction.