OMB Control No. xxxx-xxxx

 for ENERGY STAR Qualified Modular Home – Prescriptive PathHome
Address: 
________________________________________________________________________
_____________________

City: _____________________________________________  State: ______  Zip:
_________  Home ID: ______________________

Instructions: Write your initials in each applicable box.  If an item
does not apply to the home, write “n/a”.  Raters should attempt to
inspect as many critical items as possible but may delegate a
builder’s representative to verify and initial up to six (6) Thermal
Bypass items (numbered items on the first page of this checklist).  If
the builder verifies any item, they must sign the second page of this
checklist.  Every line must contain at least one set of initials or
“n/a”. 

Thermal Bypass Item	Inspection Guidelines	Plant QC	Rater



Pass	Pass	Fail

Overall Air Barrier and Thermal Barrier Alignment	General requirements:

Insulation shall be installed in full contact with sealed interior and
exterior air barrier except for alternate to interior air barrier under
walls adjoining exterior walls or unconditioned spaces (see below).

	All climate zones:

	Overall alignment throughout home	_________	_________	_________

	Garage band joist air barrier (at bays adjoining conditioned space)
_________	_________	_________

	Attic eave baffles where vents/leakage exist	_________	_________
_________

	Only at Climate Zones 4 and higher:

	Slab-edge insulation (Up to 25% of the slab edge may be uninsulated in
Climate Zones 4 and 5.)	_________	_________	_________

	Best practices encouraged, not required:

	Air barrier at all band joists (Climate Zones 4 and higher)	_________
_________



Minimize thermal bridging (e.g., OVE framing, SIPs, ICFs)	_________
_________

	Walls Adjoining Exterior Walls or Unconditioned Spaces	General
requirements:

Fully insulated wall aligned with air barrier at both interior and
exterior, OR

Alternate for Climate Zones 1 thru 3, sealed exterior air barrier
aligned with RESNET Grade 1 insulation fully supported

Continuous top and bottom plates or sealed blocking

	Wall behind shower/tub	_________	_________	_________

	Wall behind fireplace	_________	_________	_________

	Insulated attic slopes/walls	_________	_________	_________

	Attic knee walls	_________	_________	_________

	Skylight shaft walls	_________	_________	_________

	Wall adjoining porch roof	_________	_________	_________

	Staircase walls	_________	_________	_________

	Double walls	_________	_________	_________

Floors between Conditioned and Exterior Spaces	General requirements:

Air barrier is installed at any exposed insulation edges

Insulation is installed to maintain permanent contact w/ sub-floor above

	Insulated floor above garage	_________	_________	_________

	Cantilevered floor	_________	_________	_________

Shafts	General requirements:

Openings to unconditioned space are fully sealed with solid blocking or
flashing and any remaining gaps are sealed with caulk or foam (provide
fire-rated collars and caulking where required)

	Duct shaft	_________	_________	_________

	Piping shaft/penetrations	_________	_________	_________

	Flue shaft	_________	_________	_________

Attic / Ceiling Interface	General requirements:

All attic penetrations and dropped ceilings include a full interior air
barrier aligned with insulation with any gaps fully sealed with caulk,
foam or tape

Movable insulation fits snugly in opening and air barrier is fully
gasketed

	Attic access panel (fully gasketed and insulated)	_________	_________
_________

	Attic drop-down stair (fully gasketed and insulated)	_________
_________	_________

	Dropped ceiling/soffit (full air barrier aligned with insulation)
_________	_________	_________

	Recessed lighting fixtures (ICAT labeled and sealed to drywall) 
_________	_________	_________

	Whole-house fan (insulated cover gasketed to the opening)	_________
_________	_________

Common Walls Between Dwellings	General requirements:

Gap between drywall shaft wall (common wall) and structural framing
between units is sealed at all exterior boundary conditions

	Common wall between dwelling units	_________	_________	_________





Home ID: _____________________

BOP Item	Inspection Guidelines	Plant QC	Rater



Pass	Pass	Fail

Cooling Equipment (when provided)	General requirements:

Hot Climates (2004 IRC Climate Zones 1,2,3) Right-Sized: 

ENERGY STAR qualified AC (14.5 SEER / 12 EER) OR ENERGY STAR qualified
heat pump (14.5 SEER / 12 EER / 8.2 HSPF)

Mixed and cold climates (2004 IRC Climate Zones 4,5,6,7,8) Right-sized 
NOTEREF _Ref235878159 \h  \* MERGEFORMAT  1 :

13 SEER AC OR ENERGY STAR qualified heat pump (14.5 SEER / 12 EER / 8.5
HSPF)	_________	_________	_________

Heating Equipment	General requirements:

Hot Climates (2004 IRC Climate Zones 1,2,3):

80 AFUE gas furnace OR 80 AFUE boiler OR 80 AFUE oil furnace OR ENERGY
STAR qualified heat pump (14.5 SEER / 12 EER / 8.2 HSPF)

Mixed and Cold Climates (2004 IRC Climate Zones 4,5,6,7,8):

ENERGY STAR qualified gas furnace (90 AFUE) OR ENERGY STAR qualified
boiler 

(85 AFUE) OR ENERGY STAR qualified oil furnace (85 AFUE) OR ENERGY STAR
qualified heat pump  NOTEREF _Ref235878354 \h  \* MERGEFORMAT  2  (14.5
SEER / 12 EER / 8.5 HSPF)	_________	_________	_________

Thermostat	General requirements:

≤ 4 cfm to outdoors per 100 sq. ft. of conditioned floor area
_________	_________	_________

	Ducts in unconditioned spaces wrapped with R-6 minimum insulation
_________	_________	_________

	All exterior ducts mechanically secured and supported off the ground
_________	_________	_________

Envelope	General requirements:

	Infiltration (ACH50): 7 in CZs 1– 2 │ 6 in CZs 3 – 4 │ 5 in CZs
5 – 7 │ 4 in CZ 8	_________	_________	_________

	Insulation levels that meet or exceed the 2004 IRC  NOTEREF
_Ref235878159 \h  \* MERGEFORMAT  1 	_________	_________	_________

Windows	General requirements:

Gas (EF):  40 Gal = 0.61  │  60 Gal = 0.57  │  80 Gal = 0.53
_________	_________	_________

	Electric (EF):  40 Gal = 0.93  │  50 Gal = 0.92  │  80 Gal = 0.89
_________	_________	_________

	Oil or Gas water heating system ≥ 0.78 EF is integrated with space
heating boiler	_________	_________	_________

Lighting and Appliances	General requirements:

Five (5) or more ENERGY STAR qualified appliances, light fixtures,
ceiling fans equipped with lighting fixtures, water heaters and/or
ventilation fans are installed, as listed below.  NOTEREF _Ref235878159
\h  \* MERGEFORMAT  1  

_____________________________        4.    
_____________________________

_____________________________        5.    
_____________________________

_____________________________	_________	_________	_________

Marriage Line Seal	General requirements:

All vertical and horizontal marriage line areas filled with continuous
non-porous insulating gaskets creating a permanent air barrier at joints
in the ceiling, walls and floor. Gaskets may be one or two-part systems,
including proprietary gaskets, foams, insulation wrapped in poly, or
insulation covered by butyl or other long-life tape on one side. No
visible signs of gaps or tears are permitted.	_________	_________
_________

Floors over Unconditioned Spaces	General requirements:

Air barrier between floor and unconditioned crawlspace is continuous and
sealed.	_________	_________	_________

Plant QC

Date: _______________________________

Company: ___________________________

Signature: ___________________________

Initials:______________________________	Rater

Date: _______________________________ 

Company: ___________________________

Signature: ___________________________

Initials:______________________________	Builder

Date: _________________________________ 

Company: _____________________________

Signature: _____________________________

Initials:________________________________



EPA Form 5900-190

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Qualified Homes Codes and Standards Information.” 

 Only applicable to homes in Climate Zones 4 and 5.  Homes with heat
pumps in Climate Zones 6, 7 and 8 cannot be qualified using the
Prescriptive Path (BOP), but can earn the label using the ENERGY STAR
Performance Path requirements.

 Efficiency ratings not applicable if ENERGY STAR qualified water heater
is installed to comply with Lighting and Appliances requirement.

 Can use instantaneous water heating system or an indirect storage
system with a boiler that has a system efficiency of ≥ 85 AFUE. Homes
with tankless coil water heating systems cannot be qualified using the
Prescriptive Path (BOP), but can be qualified using the ENERGY STAR
Performance Path.

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R Qualified Modular Home – Prescriptive Path 	p. 2

