https://basc.pnnl.gov/opportunity-knocks
DIY - Opportunity Knocks! | Building America Solution Center
Whether it's remodeling an area of your home, or replacing an appliance, find what you need to make energy-efficient decisions.
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https://basc.pnnl.gov/guides/browse?f%5B0%5D=category%3A154362
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/home-certifications/energy-star-new-homes-multifamily
ENERGY STAR New Homes: Multifamily | Building America Solution Center
The U.S. Environmental Protection Agency’s ENERGY STAR for Homes label shows that a multifamily building has been built to provide superior comfort and...
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https://basc.pnnl.gov/guides/browse?f%5B0%5D=category%3A626
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/guides/browse?f%5B0%5D=category%3A154363
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/redcalc/tool/depressurization-analysis
Depressurization Analysis | Building America Solution Center
What this tool does The Depressurization Analysis “solve all” tool allows you to solve for “Building leakage @ 50Pa” (DTL), “Exhaust flow” of exhausting...
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https://basc.pnnl.gov/redcalc/tool/dhw-instantaneous-sizing
DHW Instantaneous Sizing | Building America Solution Center
What this tool does On-demand water heater. (Source: U.S. Department of Energy)This “solve-all” tool is used for sizing an instantaneous (tankless) hot water...
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https://basc.pnnl.gov/disaster-resistance/browse?f%5B0%5D=category%3A146439
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/redcalc/tool/ashrae-622-2016
ASHRAE 62.2-2016 | Building America Solution Center
What this tool doesThe ASHRAE 62.2-2016 RED Calc tool handles all the requirements of the Standard, including new and existing buildings, the alternative...
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https://basc.pnnl.gov/redcalc/tool/water-flow-rate
Water Flow Rate | Building America Solution Center
What this tool does Water-efficient showerhead. (Source: U.S. EPA)This is a “solve-all” tool that relates the volume of water drawn, the duration of the water...
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https://basc.pnnl.gov/redcalc/tool/ashrae-622-2013
ASHRAE 62.2-2013 | Building America Solution Center
What this tool does The ASHRAE 62.2-2013 RED Calc tool handles all the requirements of the Standard, including new and existing buildings, the alternative...
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https://basc.pnnl.gov/home-certifications/epa-watersense
EPA WaterSense | Building America Solution Center
The U.S. Environmental Protection Agency (EPA)’s WaterSense label recognizes homes that are at least 30% more water efficient than a comparable home built with...
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https://basc.pnnl.gov/high-performance-manufactured-homes
High-Performance Manufactured Homes | Building America Solution Center
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https://basc.pnnl.gov/user/login
Log in | Building America Solution Center
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https://basc.pnnl.gov/existing-homes/browse?f%5B0%5D=category%3A597
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/existing-homes/browse?f%5B0%5D=category%3A567
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/home-certifications/energy-star-new-homes-single-family
ENERGY STAR New Homes: Single-Family | Building America Solution Center
The U.S. Environmental Protection Agency’s ENERGY STAR for Homes label shows that a home has been built to provide superior comfort and durability while...
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https://basc.pnnl.gov/home-certifications/epa-indoor-airplus
EPA Indoor AirPlus | Building America Solution Center
The U.S. Environmental Protection Agency (EPA)’s Indoor AirPlus program helps home builders improve indoor air quality by identifying construction practices...
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https://basc.pnnl.gov/energy-tools
Energy Tools | Building America Solution Center
These free professional-grade tools take the guesswork out of designing, building, and equipping energy-efficient homes.
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https://basc.pnnl.gov/redcalc/tool/weather-station-data
Weather Station Data | Building America Solution Center
What this tool does First, the embedded Google map feature helps you find the closest (TMY) weather station when your location is close to a state/province or...
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https://basc.pnnl.gov/existing-homes/browse?f%5B0%5D=category%3A575
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/redcalc/tool/dhw-systems-comparison
DHW Systems Comparison | Building America Solution Center
What this tool does Storage water heater cross-section (Source: U.S. Department of Energy)This tool allows you to calculate the annual cost of heating domestic...
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https://basc.pnnl.gov/resources
Resources | Building America Solution Center
Explore a library of home construction and renovation guidance and easily search through galleries containing hundreds of building science-related photos,...
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https://basc.pnnl.gov/redcalc/tool/ashrae-622-2010-ca
ASHRAE 62.2-2010 CA | Building America Solution Center
What this tool does The ASHRAE 62.2 California tool handles all the requirements of the unique version of the 62.2 Standard, including new and existing...
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https://basc.pnnl.gov/disaster-resistance/browse?f%5B0%5D=category%3A146112
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/redcalc/tool/ashrae-622-2010
ASHRAE 62.2-2010 | Building America Solution Center
What this tool does The ASHRAE 62.2-2010 RED Calc tool handles all the requirements of the Standard, including new and existing buildings, the alternative...
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https://basc.pnnl.gov/redcalc
RED Calc™ | Building America Solution Center
RED Calc building science calculation tools help energy auditors and analysts become more productive and confident of their results.
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https://basc.pnnl.gov/hpwh_installation_tool
Hybrid Water Heater Installation Tool | Building America Solution Center
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https://basc.pnnl.gov/redcalc/about
RED Calc Standalone Tools | Building America Solution Center
Quick access to the Building Science tools of choice.
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https://basc.pnnl.gov/library
Library | Building America Solution Center
Explore this extensive library of building science guidance including research reports from DOE’s Building America program as well as hundreds of other...
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https://basc.pnnl.gov/disaster-resistance/browse?f%5B0%5D=category%3A146100
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/redcalc/tool/electrical-usage
Electrical Usage | Building America Solution Center
What this tool does This tool allows you to easily calculate the annual electrical cost of operating a ventilation fan or any other electrical appliance that...
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https://basc.pnnl.gov/home-certifications/doe-efficient-new-homes-single-family
DOE Efficient New Homes: Single-Family | Building America Solution Center
The U.S. Department of Energy’s Efficient New Homes program certification shows that a home has been third-party verified as achieving extraordinary levels of...
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https://basc.pnnl.gov/redcalc/tool/dhw-first-hour-rating
DHW First Hour Rating | Building America Solution Center
What this tool does Heat pump water heater. (Image credit: ENERGY STAR)This tool helps you determine the First Hour Rating for the purpose of sizing a storage...
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https://basc.pnnl.gov/redcalc/tool/zone-pressure-diagnostics
Zone Pressure Diagnostics | Building America Solution Center
What this tool does This tool allows you to easily achieve accurate Zone Pressure Diagnostics (ZPD) testing results. ZPD calculated with this tool will:
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https://basc.pnnl.gov/disaster-resistance/browse?f%5B0%5D=category%3A145052
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/contact
Contact | Building America Solution Center
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https://basc.pnnl.gov/guides/browse?f%5B0%5D=category%3A632
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/guides/browse?f%5B0%5D=category%3A630
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/redcalc/tool/air-leakage-metrics
Air Leakage Metrics | Building America Solution Center
What this tool does Contractors use a blower door to measure air leakage. Image courtesy of PNNL.You can calculate up to eight air leakage metrics, including...
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https://basc.pnnl.gov/redcalc/tool/dhw-volume-use
DHW Volume per Use | Building America Solution Center
What this tool does Electric storage water heater. (Source: U.S. Department of Energy)This tool determines the volume of hot water used given an amount of...
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https://basc.pnnl.gov/home-improvement-expert
Home Improvement Expert™ | Building America Solution Center
Get expert-backed guidance for home energy improvements with the Home Improvement Expert™. Use checklists to guarantee quality work and optimal performance.
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https://basc.pnnl.gov/existing-homes/browse?f%5B0%5D=category%3A581
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/guides/browse?f%5B0%5D=category%3A629
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/redcalc/tool/dhw-average-daily-usage
DHW Average Daily Usage | Building America Solution Center
What this tool does This tool calculates average daily hot water use based on the amount of hot water used by various appliances and use incidents. Default...
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https://basc.pnnl.gov/disaster-resistance/browse?f%5B0%5D=category%3A145050
Browse by Category | Building America Solution Center
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https://basc.pnnl.gov/resources?f%5B0%5D=type%3Acad_file
Resources | Building America Solution Center
Explore a library of home construction and renovation guidance and easily search through galleries containing hundreds of building science-related photos,...
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https://basc.pnnl.gov/disaster-resistance
Disaster Resistance | Building America Solution Center
Whether building, renovating, or restoring a home, make it more resistant to natural disasters.
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https://basc.pnnl.gov/building-assemblies
High-Performance Building Assemblies | Building America Solution Center
Find best-practice building construction drawings for attic, wall, foundation, and window assemblies for every region of the country.
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https://www.item24.online/
item America Solution Center
Mar 2, 2026 - Explore the latest in innovative solutions using aluminum extrusion: work bench systems, machine enclosures, material handling systems ...
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https://basc.pnnl.gov/resources?f%5B0%5D=type%3Aimage
Resources | Building America Solution Center
Explore a library of home construction and renovation guidance and easily search through galleries containing hundreds of building science-related photos,...
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https://basc.pnnl.gov/resources?f%5B0%5D=type%3Acase_study
Resources | Building America Solution Center
Explore a library of home construction and renovation guidance and easily search through galleries containing hundreds of building science-related photos,...
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https://basc.pnnl.gov/redcalc/tool/parallel-path-r-value
Parallel Path R-Value | Building America Solution Center
What this tool does Illustration for example below (Source: ORNL)The tool calculates a single R-value for an area made up various materials with distinct...
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https://basc.pnnl.gov/resource-guides/asphalt-shingle-roofs
Asphalt Shingle Roofs | Building America Solution Center
Guide discussing disaster resistance related to asphalt shingle roofing when installing roofing on new construction or when repairing or replacing roofing on...
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https://basc.pnnl.gov/guides
All Guides | Building America Solution Center
Discover best practice guidance for all aspects of new home construction and renovation.
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https://basc.pnnl.gov/redcalc/tool/pitot-tube-airflow
Pitot Tube Airflow | Building America Solution Center
What this tool does A pitot tube. (Source: FSEC)This tool, along with a pitot tube and a digital manometer, allows you to accurately measure the airflow within...
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https://www.bambee.com/
Bambee is the HR Manager solution for America's small businesses
Bambee is the leading outsourced HR solution for small to large businesses.
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iOne Digital | The Digital Solution for the New America
May 4, 2022 - iOne Digital, formally Interactive One, is the leading digital media company that creates and distributes premium content for Urban Enthusiasts.
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