U.S. Department of Energy U.S. Department of Energy Energy Efficiency and Renewable Energy

Guides

Attic Access Panels/Doors/Stairs
Attic Eave Minimum Insulation
Attic Knee Walls
Back-Draft Dampers at Shared Common Exhaust Duct
Bathroom and Kitchen Exhaust Fans
Bathroom Exhaust
Bathroom Fan Ratings
Building Cavities Not Used as Supply or Return Ducts
Cantilevered Floor
Capillary Break Beneath Slab - Polyethylene Sheeting or Rigid Insulation Over Aggregate
Capillary Break Beneath Slab - Polyethylene Sheeting or Rigid Insulation over Geotextile Matting
Common Exhaust Duct Not Shared by Fans in Separate Dwellings
Complete Window Replacement
Concrete Slab over Polyethylene
Continuous Rigid Insulation Sheathing/Siding
Continuous Supply/Exhaust Fan Ratings
Continuously Operating Ventilation and Exhaust Fans
Direct Vent Equipment
Doors Adjacent to Unconditioned Space
Double Wall Framing
Double Walls
Dropped Ceiling/Soffit Below Unconditioned Attic
Duct Leakage to Outdoors
Ducted Returns
Electrical Wiring
ENERGY STAR Windows
Exterior Storm Windows
Exterior Surface of Below-Grade Walls
Fabric Filter at Drain Tile
Final Grade
Fireplaces/Stoves with Proper Ventilation
Flashing at Bottom of Exterior Walls
Floor Above Garage
Floor Above Unconditioned Basement or Vented Crawlspace
Fully Flashed Window and Door Openings
Fully Sealed Continuous Weather Resistance Barrier
Garage Rim/Band Joist Adjoining Conditioned Space
Gasketed/Sealed Sump Pump Covers
Gutters and Downspouts
Heavy Membranes at Eaves in Cold Climates
Heavy Membranes at Valley and Roof Deck Penetrations
High Moisture-Content Interior Walls Not Enclosed
High-MERV Filter
HVAC Ducts Shall Not Be Run within Exterior Walls
IECC Code Level Insulation
Insert Replacement Window
Insulated Concrete Forms (ICFs)
Insulated Corners
Insulated Headers
Insulated Interior/Exterior Wall Intersections
Insulation Below Attic Platforms
Insulation Installation (RESNET Grade 1)
Insulation Levels for Ducts in Unconditioned Spaces
Interior Permanent Fixed Storm Windows
Interior Removable Storm Windows
Intermittent Supply/Exhaust Fan Ratings
Jump Ducts
Kitchen Exhaust
Light Tubes
Minimal Framing at Doors/Windows
Minimum Wall Studs
Modular Home Marriage Joints
Moisture-Resistant Backing Material at Walls Behind Tubs and Showers
Multifamily Party Walls
No Class I Vapor Retarders on Interior Side of Exterior Walls in Warm-Humid Climates
No Excessive Coiled or Looped Flex Ducts
No Kinks or Sharp Bends in Flex Duct Installation
No Vapor Retarders on Interior Side of Air Permeable Foundation Insulation
No Visible Signs of Water Damage or Mold on Materials
No Wall-to-Wall Carpet Installed in Wet Areas
Obvious Ventilation Controls
Other Exterior Walls
Patio Slabs, Porch Slabs, Walks, and Driveways
Plates/Blocking at Top of Walls Adjoining Unconditioned Spaces
Plumbing/Piping
Polyethylene Lapped Up Walls/Piers and Secured in the Ground
Proper Clothes Dryer Venting
Proper Installation of Filter
Quantity and Location of Supply and Return Duct Terminals Match Contractor Balancing Report
Recessed Light Fixtures Below Unconditioned Space
Sealed and Insulated Fiber Board Ducts
Sealed and Insulated Flex Ducts
Sealed and Insulated Metal Ducts
Shafts (e.g., Duct, Flue)
Sheetrock to Top Plate
Sill Plates
Skylight Shaft Walls
Slab Edge Insulation
Staircase Walls
Step and Kick-Out Flashing at Roof-Wall Intersections
Structural Insulated Panels (SIPs)
Structural Insulated Panels (SIPs) Seams
Sufficient Cavity Space for Flex Ducts
Support at Intervals for Flex Ducts
Thermostat Controls
Total Duct Leakage
Transfer Grilles
Undercut Doors
Unvented Combustion Appliances
Ventilation Air Inlet Locations

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