Library

Web page providing an overview of room-level air conditioning systems such as window units and mini-splits.

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

Manual that identifies certain leakage limits for ducts and outlines procedures for testing ducts for conformity with air leakage limits that are set forth in a designer’s project specification.

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

Fact sheet outlining the research behind how smart ventilation controls boost energy efficiency and indoor air quality, including research findings from seasonal temperature, timer, and real-time weather-based controls showing that all three systems showed potential for energy savings while...

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.

Report about results of 10 test buildings in Chicago, studied to identify best practices for methodology, typical costs, and energy savings associated with steam system balancing.

Information sheet about buried ducts.

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.

Research project evaluating the pre-and post-retrofit energy consumption of a marine climate retrofit, compare actual energy use to original predictions, and identify opportunities for cost savings in other similar retrofits in this climate.

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.

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.

Guide from Energy Star on smart thermostats and offering some guidance for choosing one.

This report describes the results of a multiyear research project that investigated the energy savings attributable to thermostatic radiator valves (TRVs) installed on one-pipe steam distribution systems.

Report on a project conducted to better understand the current usage of thermostatic radiator valves by key market players in steam and hot water heating and to conduct limited experiments on the effectiveness of new and old thermostatic radiator valves as a means of controlling space temperatures...

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.

Information sheet describing transfer ducts and grilles for HVAC.

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.

Report reviewing unvented roof assemblies, such as conditioned attics and unvented cathedral ceilings that are becoming common in North American construction.

Document summarizing the various papers on unvented conditioned cathedralized attics found on BSC's website.

Report covering wind uplift and roofing membrane failures.

Users guide to help contractors and homeowners use the Cold Climate Heat Pump Sizing Support Tools developed by NEEP to size and select the best air source heat pumps for their cold climate location.

Webpage describing the use of cool roofs to reduce heat islands and and benefits and costs.

Fact sheet describing the results of an analysis of humidity control and variable refrigerant flow (VRF) system efficiency in three new multifamily buildings in New York, NY.

Article describing a method for flashing roof vent boots, describing how to flash the pipe, how to flash over and under the pan, and finish by shaping the shingles, as well as addressing potential water leakage by adding an additional seal with EPDM flashing tape with a butyl adhesive backing to the...

Report describing the formation of icicles and ice dams along poorly ventilated roofs and how to mitigate ventilation issues with insulation and vents.

Report describing the use of attic ventilation to control moisture in cathedral roofs and avoid the formation of ice dams.

Guide providing information on controlling attic ductwork sweating.

Research study developed and verified a fuel oil flow field measurement protocol that is cost effective and can be performed with little training for use by the BB program as well as other weatherization programs and building science researchers.

Report covering the migration of wind-blown embers in roof vents.

Report describing a field study of 31 homes to test envelope and duct leakage and fan flowrates, and to determine ventilation operation characteristics.

Article describing how to weatherproof dormers using peel-and-stick membranes when flashing a dormer.

Report describing sloped roof assemblies with high levels of thermal performance.

Web page explaining what a cool roof is and how they work, as well as benefits to their use and links to research studies.

Factsheet describing the importance of system charging, superheat and subcooling.

Webpage describing how different amounts and types of snow loads affect the structural integrity of roofs and homes.