Help
Log in
Español
Draft New Specifications
- Air Sealing - Specific Air Sealing (Integrated LED Retrofit Kit)
  General Pressure Boundary
- Heating & Cooling - Solid Fuel Heating (Wood or Pellet stove)
  Non-Distributed
- Air Sealing – General Air Sealing (Aerosolized Envelope Sealant)
  Proprietary Spray Sealant
- Insulation – Enclosed Walls (Extruded Polystyrene Retrofit Wall System)
  Walls
- Baseload – Renewable Energy (Roof Interconnected Photovoltaic)
  Electric Supply
Health & Safety
- Safety Devices
  Smoke Alarms
  Carbon Monoxide (CO) Alarms
  Water Heating
- Moisture
  Drainage
  Ground Vapor Retarders
  Space Conditioning
- Electrical
  High Voltage (50 volts or more)
- Radon
  Radon Precautionary Measures
  Radon Mitigation
Air Sealing
- General Pressure Boundary
  General Air Sealing
  Specific Air Sealing
  Intentional Attic Openings
  Foundation Spaces
  Attached Garages
- Shell Components
  Windows
  Doors
Insulation
- Attics
  Exterior Roof Insulation
  Interior Roof Insulation
  Attic Floors - Unconditioned Attics
  Attic Knee Walls
  Unique Installations
- Walls
  Accessible Walls
  Enclosed Walls
- Floors
  Accessible Floors
  Exposed Floors
  Unique Installations
- Conditioned Subspaces
  Rim/Band Joist
  Walls
  Slabs
Heating & Cooling
- Forced Air
  Controls
  Condensate
  Refrigerant Loop
  Duct Installation
  Duct Repair
  Duct Sealing
  Duct Insulation
  Equipment Installation
  Clean & Tune
  Special Considerations
- Hydronic
  Controls
  Distribution
  Equipment Installation
  Clean & Tune
  Special Considerations
- Non-Distributed
  Room Conditioning
- Solar Gain Reduction
  Landscaping
  Reflective Roofs
- Combustion Safety
  Combustion Appliance Zones
  Combustion Air
  Appliance Venting
  Fuel Delivery
- Special Considerations
  Equipment Removal
Ventilation
- Infrastructure
  Components
- Local Ventilation
  Exhaust Systems
  Appliance Exhaust
- Whole-Building Ventilation
  Supply Ventilation
  Exhaust Ventilation
  Balanced Ventilation
  Passive Ventilation
  Dehumidification
  Decommissioning
Baseload
- Plug Load
  Refrigeration
  Electronics
  Lighting
  Lighting Controls
  Laundry
  Vending & Beverage
  Special Considerations
- Water Conservation
  Water Preservation Devices
- Water Heating
  Thermal Loss Reduction
  Water Heater Installation
  Distribution Components
- Special Considerations
  Elevators
  Spas, Hot Tubs, Saunas
  Water Conditioning

Specification History

SWS Version	Created	Specification ID	Title	Specification	Objective	Supporting Materials	Rationale	Status
Version 2020	08/14/2020 - 14:25	5.0105.4c	Alternate return air path	Provide alternate return air opening to the furnace closet (e.g., louvered door or install grilles) Net free air flow must minimally meet manufacturer specifications for the installed equipment	Ensure sufficient return air is provided to the system			Black Line
Version 2020	08/14/2020 - 14:25	5.0105.4c	Alternate return air path	Provide alternate return air opening to the furnace closet (e.g., louvered door or install grilles) Net free air flow must minimally meet manufacturer specifications for the installed equipment	Ensure sufficient return air is provided to the system			Black Line

National Renewable Energy Laboratory

About

The National Renewable Energy Laboratory is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy LLC.