Library

Webpage explaining how to mitigate heat loss through roofs for ice dam prevention.

A report presenting alternative approaches for reducing the costs of roof-mounted, grid-connected photovoltaic (PV) systems.

An EPA guide describing the causes and impacts of summertime urban heat islands, promoting strategies for lowering temperatures in U.S. communities.

Article describing moisture and ice dam issues in attics and how to air seal the attic floor.

Fact sheet describing best practices in installing leak-free refrigerant systems, including specifics on creating flare joints and brazed joints, pressure testing, vacuum testing, and charging the system with refrigerant.

Webpage from FEMA describing how to properly reconstruct masonry fireplace chimneys damages by earthquakes.

Report describing information from DOE about rules and standards for residential air conditioners and heat pumps.

Webpage describing a DOE Cold Climate Heat Pump Challenge. The challenge engages industry partners and focuses around the Cold Climate Heat Pumps, a more environmental and efficient heating alternative to traditional heating.

Paper covering a parametric study of foundation heat exchanger-based ground source heat pump systems for several house configurations in a range of European locations, with an emphasis on determining feasible combinations.

Report discussing instrumentation methods and field operation characteristics of two GSHPs in test houses, including a comparison between the manufacturers listed COP values and the COPs calculated from field data.

Report providing architects, designers, and homeowners with information to make house plans useful for constructing a more wind resilient structure.

Fact sheet describing how to install bracing to retrofit roof dormers for increased wind resistance.

Factsheet providing homeowners with an overview of approaches for flashing and sealing roof penetrations to help discussion with a roofing contractor.

Fact sheet describing flashing of roof penetrations to make a home more resistant to high winds, hurricanes, and rainwater intrusion.

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...

Report covering non-combustible continuous exterior insulation and non-combustible roof venting.

Fact sheet describing proper roof sheathing installation and illustrating fastening methods that will enhance the durability of a building in high-wind areas; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Fact sheet describing recommended practices for the use of roofing underlayment as an enhanced secondary water barrier in coastal environments and optional installation methods; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Q&A article discussing how to address moisture issues in an attic in a wet and humid coastal climate.

Fact sheet describing the importance of proper roof and deck flashing, and typical and enhanced flashing techniques for coastal homes; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Article explaining the energy cost reduction and other benefits associated with installing a heat pump clothes dryer

Webpage discussing the characteristics of sunlight and how cool roofs work to reduce solar heat gain.

Technical study exploring the impact of different installation faults on heat pump performance in a single-family house.

Information sheet describing how to select a properly sized water heater based on household usage patterns, peak demand, and heater type—whether tankless, solar, or storage-based—to ensure efficiency and adequate hot water supply.

Fact sheet describing building envelope performance measures applicable to residential and small commercial construction.

Webpage describing the STEP campaign encouraging the use of smart diagnostic tools to reduce installation faults.

Website providing consumers with resources to find, select and install heat pump water heaters.

Report informing building stakeholders about the risks a snow event poses to their buildings, preventative measures to take before the snow season, and actions that should be taken before, during, and after a snow event.

Webpage providing information about design snow loads and a free interactive ground snow load mapping tool for the contiguous United States, as well as snow load calculation methods.

Specifications to assist builders in designing and constructing homes equipped with a set of features that make the installation of solar energy systems after the completion of the home’s construction easier and less expensive.

Spreadsheet tool that computes solar reflectance index (SRI) and roof surface temperature based on solar reflectance and thermal emittance using ASTM standard E 1980.

Article describing ways to protect roofs from water infiltration by using self-adhering underlayment in vulnerable locations such as roof valleys, eave edges (to help deal with ice dams), rake edges, roofs to vertical walls (such as dormers), sidewall protection, the bottom of dormer valleys, and...

Report providing information based on research and case studies, to remodelers and consumers about opportunities to increase home energy performance.

Report describing the equipment selection of a split system air conditioner and furnace for an example house in Chicago, Illinois, as well as a heat pump system for an example house in Orlando, Florida.

Report about proper water heater selection developed to provide step-by-step procedures for evaluating preferred cost-effective options for energy efficient water heater alternatives based on local utility rates, climate, and anticipated loads.

A research paper discussing the use of foundation heat exchangers for ground source heat pump systems in European climates.

Question and Answer article in Energy Design Update describing the cost and savings benefits of electronically commutated motors (ECMs) for HVAC equipment.

Report providing performance results of a home's heat pump water heater and whole-house dehumidifier over a six-month period.

Document about laboratory testing of five integrated heat pump water heaters (HPWH).

Fact sheet describing water management in a residential building.

Fact sheet describing the test procedure for wind and wind driven rain resistance of discontinuous roofing systems.

Conference paper summarizing the relative performance of currently available Heat Pump Water Heaters (HPWH) models, the energy implications of different installation locations (garage, basement, or conditioned space) and ducting configurations (exhaust ducting, full ducting, or no ducting), as well...

Manuals describing design, materials, and installation techniques applicable to almost all types of roof systems; four-volume set includes Metal Panel and SPF Roof Systems, Membrane Roof Systems, Architectural Metal Flashing and Condensation and Air Leakage Control, and Steep-Slope Roof Systems.

Article from Purdue University on the potential for white paint technology to lower air conditioning usage requirements.

Factsheet providing design guidance for engineers describing how to characterize snow drifts on roofs in three dimensions rather than two, as anticipated in the 2022 edition of the standards, ASCE 7 - Minimum Design Loads and Associated Criteria for Buildings and Other Structures.

Fact sheet outlining best design and construction practices for tile roofing in high wind areas; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Report presenting information that aids qualified architects and engineers in the identification of the best available refuge areas in existing buildings for sheltering in place during a tornado.

Report about partnership to build three communities of net zero houses.

Presentation report detailing Heat Pump Water Heater (HPWH) interaction with space conditioning systems in real-life test scenarios that explains some of the problems arising from these interaction and information that can be used to make the system more efficient.

Webpage from Southern California Earthquake Center (SCEC) on identifying key problem spots on unreinforced masonry chimneys and how to retrofit them to withstand seismic forces.