Library

Article describing the factors that can lead to inefficient hot water distribution systems in homes.

Guide describing how to choose energy-efficient water heaters, including heat pump models, with tips on installation, rebates, and incentives for maximizing energy savings.

ENERGY STAR webpage describing how a heat pump water heater works.

Article from RMI on how climate change is leading to an increase in critical extreme heat hours and what smart building strategies can be taken to mitigate some of these effects including paint color and insulation.

Information sheet presenting the correct methods for building an insulated cathedral ceiling.

Article from Washington Post on passive cooling measures for homes during extreme heat.

Article from Montana State University Extension explaining how proper insulation techniques can greatly reduce the risks of ice dams on roofs in cold climate zones.

Checklist for verifying FORTIFIED levels and documentation needed.

A structural insulated panel (SIP) roof has no embedded lumber in the structure, and therefore nothing substantial for attaching PV array and solar hot water mounts. Single or double lumber splines could be put into the panels, or I-joists at 4-foot intervals could be added.

Report describing the identification of barriers and proposed practical solutions for the design, installation, and market adoption of heat pump water heaters in new low-rise multifamily housing, focusing on studio and one-bedroom units.

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.

Journal article presenting modeling of residential gas water heaters via dynamic simulation models to determine the effect of the pilot light on their annual energy consumption.

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

Report describing the performance, economics, space heating impacts, and user satisfaction of heat pump water heaters (HPWHs) in the upper Midwest, based on a field study and survey of participants in the MECA HPWH incentive program.

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.

Fact sheet describing principles of insulating steam distribution and condensate return lines as an effective way to prevent energy loss.

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

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.

This webpage provides an interactive walk-through of the installation of a heat pump water heater in a home in Massachusetts, 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...

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

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 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...

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.

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...

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.”

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.

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.

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.

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

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

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

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 paper discusses model validation using data from three thermosiphon systems.

This report requires all elements of rooftop PV panel systems to be designed for component and cladding pressures per ASCE 7-10.

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

Standard covering overs mounting systems, including mounting devices, clamping devices and ground lugs for use with photovoltaic modules and panels and contains requirements for ground-mounted and roof systems as part of a nonstructural building component.