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Climate zone map
If a dropped soffit is used to house a duct, the soffit space must equal the duct diameter plus the insulation thickness
If airflow must be limited to a supply register, use balancing dampers at the trunk line rather than looping duct to control airflow
If fans share common exhaust duct, back-draft dampers installed
If filter is inaccessible, locate the air filter between the return air plenum and the air handler box
If furnace is accessible, locate the air filter between the return air plenum and the air handler box
If HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation
If the furnace is hard to access, locate filters at return registers covered by hinged grilles that are easy to open from inside the home
If wall registers are desired, install HVAC ducts in interior wall cavities
 Impervious surfaces like patio slabs, sidewalks, and driveways that are within 10 feet of the home should slope away from the house.
Improper flashing can allow rain water into walls, causing significant damage
In 2009 IECC CZ 5 and higher, install self-sealing bituminous membrane or equivalent over sheathing at eaves from the edge of the roof line to > 2 ft. up roof deck from the interior plane of the exterior wall.
In cathedral ceilings, parallel chord trusses allow thicker insulation levels over the exterior wall top plates
In cold climates, install slab edge insulation when pouring slab on grade foundations.
In cold climates, plumbing pipes should not be located in the building cavities over the garage
In line exhaust ventilation installed
In the attic, all of the top plate seams are sealed with canned spray foam before covering the ceiling deck with blown fiberglass.
In this gut rehab, drywall was removed then a sprayer-applied sealant was used to seal all large cracks and seams and then the 2x4 walls were filled with spray foam.
In two-story homes, the air barrier separating the wall insulation from the porch attic is sometimes missing
Inadequate amount of insulation installed with compression, misalignment, and voids
Individual metering or submetering of each unit allows residents to understand and better manage their water use.
Indoor unit installation of a mini split (ductless) heat pump.
Infiltration through band joist
Infrared image of a rim joist
Vinyl frame window replacement detail
Inspection of taped joint
Install a continuous air barrier below or above ceiling insulation and install wind baffles.
Install a filter with a MERV rating of 6 or higher in each ducted mechanical system
Install a foam gasket along top plates before installing drywall
Install a gasket around the plumbing vent stack in the exterior top plate
Install a housewrap drainage plane between the SIP panels and the exterior cladding
Install a rigid air barrier to separate the porch attic from the conditioned space.
Install a sealed enclosure over a non-IC rated recessed light fixture to air seal the can and to prevent insulation from touching the recessed can light.
Install a sill gasket between the sill plate and the foundation wall
Install an access panel cover with a gasket and duct tape the edges
nstall an air barrier behind fireplaces installed on exterior walls
Install an air barrier behind showers and tubs installed on exterior walls.
Install an air barrier behind staircases installed on exterior walls.
Install an air barrier on the exterior of attic knee wall insulation and to block open floor joist cavities under attic knee walls
Install an air barrier over dropped ceilings or soffits
Install an ENERGY STAR labeled insulated door with an automatic closer. Weather strip the door frame
Install bottom layer of rigid insulation
Install cement board behind tub and shower enclosures.
Install continuous rigid foam insulation or insulated siding to help reduce thermal bridging through wood- or metal-framed exterior walls.
Install continuous top plates or blocking at the tops of walls adjacent to conditioned space to minimize air leakage.
Install duct supports in line with ceiling trusses
Install ducts without excessive coils or loops
Install ducts without kinks or sharp bends
Install gutters and downspouts that divert water away from home.
Install insulating foam sheathing and tape all seams to serve as a continuous drainage plane behind the home’s cladding.
Install insulation and an air barrier around skylight shafts.
Install insulation under platforms constructed in the attic for storage or equipment.
Install remaining sidewall flashing, counter flashing, and shingles
Install rigid insulation and finish material below the framing and cavity insulation of a building overhang
Install rigid insulation or another wall sheathing product
Install self-adhesive sill flashing
Install self-sealing bituminous membrane or equivalent at all valleys and roof deck penetrations
Install shingle starter strip then kick-out diverter; attach to roof deck but not sidewall
Install supply registers in floors or ceilings to avoid routing ducts through exterior walls
Install supports every 5 feet so that maximum allowable sag in flexible duct is no more than one-half inch per foot
Install supports every 5 feet so that maximum allowable sag in flexible duct is no more than one-half inch per foot
Install the exterior wall sheathing to extend to or beyond the porch roof rafters
Install the fan either in the range hood, the cabinet above the stove, or on the wall above the stove
Install the filter media box between the return air plenum and the air handler box
Install the housewrap. Cut housewrap to fit over diverter and tape top of cut
Install the whole house fan in the ceiling in a central location in the house
Install trim and cap flashing
Install waterproofing on portions of the ICF that will be below grade
Install WaterSense® labeled showerheads which can reduce water use in the shower by 20 percent.
Install wood framing cross pieces in the attic rafter bays on each side of the duct chase
Install wood framing cross pieces in the attic rafter bays on each side of the duct chase
Installation details for weather-resistant barriers
Installation of the Self-Sealing Bituminous Membrane in Relation to the Drip Edge and Roof Underlayment
Installed interior removable storm window
Installer permanently labled ventilation switch
Installing a garage exhaust fan is one important step in keeping auto exhaust and other pollutants out of the home
Installing a soffit in an exterior wall
Installing air barrier above a soffit
Installing ladder blocking at interior-exterior wall intersections rather than three solid studs in the exterior wall as the supporting surface allows room for insulation in the exterior wall.
Installing transfer grilles is one way to balance pressures from room to room
Insulate the porch-attic wall making sure the insulation fully aligns with the inside wall sheathing