HomeMy WebLinkAboutBlower Door TestYou have taken the first step to improving the
comfort, safety, and efficiency of your home.
The following report details the findings from
the Home Energy Assessment on
November 18, 2025.
Call your local Energy Smart Colorado
Resource Center with any questions or to
discover available rebates that can help make
these recommendations a reality.
Home Energy Assessment Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
Building type: Single Family
Year built: 2024
Square footage: 580
Primary heating fuel: Electricity
Number of bedrooms: 1
Number of occupants: 3
Welcome to Energy Smart!
The new ADU is well built, with few recommendations for improvement. Read through the
report for basic recommendations.
Blower door test results are 4.23 ACH50, however, when using exception in IECC section
402.2.1.4 for dwellings under 1500 sqft, the results meet the upper limits for cfm/sqft of
surface area. .30 cfm/sqft is the maximum, and the ADU tested at .208 cfm/sqft. The blower
door test passes when using this exeption.
Assessment overview:
Cubic volume: 5,220CF
Blower door flow rate: 368CFM50
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Your Home
Average Home
Tight Home
Leaky Home
Natural Air Changes per Hour (ACHn)
Air Leakage
Energy Smart Tip:
Your analyst used a blower door fan to test for air leakage. This test helps determine how leaky or tight the
home is relative to other homes. Your home’s natural leakage rate is shown in the chart on the left. A very
leaky home costs more to heat, while a very tight home may require continuous mechanical ventilation. Leaks
can be repaired through attic floor sealing, caulking, weather stripping, and other means.
Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
CF = Cubic Feet. The volume of air contained in a
1’ x 1’ x 1’ cube.
CFM50 = Cubic Feet per Minute at 50 Pascals
negative pressure. This number estimates how
much air your home loses each hour.
ACHn = Natural Air Changes per Hour. Expressed
in the chart above as 0.23, this means that about
23.00% of the air in your home is lost to the
outside every hour.
Cool air making contact with back
of attic access hatch
Outdoor air pulling in from bath
fan
Recommendations:
Blower door test results are 4.23 ACH50, however, when using IECC section 402.2.1.4 for dwelling under
1500 sqft, the results meet the upper limits for cfm/sqft of surface area. .30 cfm/sqft is the maximum, and the
ADU tested at .208 cfm/sqft.
The only recommendation is to test for indoor air quality to confirm sufficient fresh air is moving through the
unit. Install wall mount controls for the Panasonic bath fan so the unit can be run intermittently or constantly
until air quality is improved, if necessary.
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
2
Primary roof:
Unconditioned Attic
Construction: Wood Frame
Exterior finish: Composition Shingles
Percentage of total: 100%
Existing R-value: 42
Recommended R-value:
Secondary roof:
Construction:
Exterior finish:
Percentage of total: %
Existing R-value:
Recommended R-value:
Envelope – Roof
Energy Smart Tip:
Adding insulation to your attic can be one of the most cost-effective upgrades to your home. Be sure to air-seal
all connections between the attic and living space before installing additional insulation. Also be sure to protect
existing vents with baffles and complete any repair projects. And don’t forget to insulate and weather-strip the
attic hatch!
Upgrading roofs – Roofs are typically considered
for energy improvements when there is easy
access to the existing insulation, such as an attic
floor, or when you are re-roofing your home. In
some cases, rigid foam insulation can be added to
your roof deck to increase its thermal
performance, saving you money on utility bills and
making your home more comfortable.
R42 fiberglass Insulation looks good Fiberglass not secured to access
hatch door
Recommendations:
The only recommendation would be to fasten up to 8” of rigid foam board to the back of the attic access
hatch door. The fiberglass batt is not making solid contact with the hatch door so cold air will have the ability
to come into direct contact with the backside if the door.
Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
3
Existing window type:
2-pane, wood/vinyl fr., Low-e
Recommended window type:
Square footage (sf) of windows:
Front: sf
Right: sf
Back: sf
Left: sf
Envelope – Windows & Doors
Energy Smart Tip:
Adding storm windows, insulating blinds or replacing your current windows can save energy and make your
home feel more comfortable. When replacing windows, install energy efficient units with a U-factor of .28 or
lower and ensure that the rough opening of the window is properly air-sealed with a low-expanding foam that
is approved for doors and windows.
U-factor – This number refers to the ability of your
windows to resist heat loss. It is the numerical
reciprocal of R-value.
Low-e – These coatings are applied to glass when
windows are manufactured and help to reduce the
window’s emissivity, which can improve insulating
properties when properly applied.
Gas filled – Noble gasses are used as an air
barrier between panes of glass to help increase a
window’s thermal performance. The seals that
keep these gasses trapped inside can fail over
time and should be inspected periodically.
Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
Recommendations:
Add thermal insulated window treatments, such as honeycomb blinds, to the windows, and draw them down
at night during winter months. This will help reduce heat loss through the windows.
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
4
Heating & Cooling
Energy Smart Tip:
Your home’s heating and cooling systems were inspected for safety and efficiency. Older heating systems
should be replaced with energy efficient, sealed-combustion units or highly energy efficient heat pumps. This
is often a significant upgrade so considerations beyond energy savings should be made. ENERGY STAR
certified equipment will provide the best efficiency and savings.
AFUE – Annual Fuel Utilization Efficiency is the
measure of your heating system’s efficiency.
Higher numbers are more energy efficient.
SEER – Seasonal Energy Efficiency Ratio is the
measure of your cooling system’s efficiency.
Higher numbers are more energy efficient.
High efficiency heat pump High efficiency boiler Thermostat for boiler
Recommendations:
Mechanical systems are new high efficiency. Keep systems serviced/maintained regularly to extend life and
performance.
Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
Heating system type:
Boiler-Infloor
Fuel: Electricity
Efficiency rating (AFUE): 95
Recommended AFUE (or HSPF):
Secondary heating system:
Mini Split
Cooling system type:
Heat Pump-Air Source
Efficiency rating (SEER): 26
Recommended SEER:
Fireplace type: None
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
5
Hot water system type:
Tankless
Fuel: Natural Gas
Set temperature: 120
Solar thermal assist: N/A
Pipes insulated?: No
Existing EF: 0.85
Recommended EF:
Water Heating
Energy Smart Tip:
Many water heating systems are set to temperatures that are too high for safety and energy efficiency. Keep
your water temperature at 120˚F for optimum energy performance and to keep your family safe.
EF – Energy Factor is a metric used to compare
the energy conversion efficiency of residential
appliances and equipment. EF ratings vary by
appliance size and type, but in general, bigger
numbers are more energy efficient.
On demand hot water Hot water set to 120 degrees F
Recommendations:
New boiler is a combination heating and domestic hot water heating system. No recommendations.
Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
6
Combustion zone location:
Conditioned Space
Ambient CO:
Primary appliance:
Worst case spillage:
Worst case flue CO air free:
Natural conditions spillage:
Natural conditions flue CO air free:
Hot water appliance:
Worst case spillage:
Worst case flue CO air free:
Natural conditions spillage:
Natural conditions flue CO air free:
Secondary appliance:
Worst case spillage:
Worst case flue CO air free:
Natural conditions spillage:
Natural conditions flue CO air free:
Health & Safety
Energy Smart Tip:
Energy Smart Colorado requires analysts to perform combustion safety tests on gas-fired equipment.
Problems with furnaces, boilers or water heaters may include but are not limited to: poorly-tuned burners,
combustion gas spillage (also called back drafting), gas leaks and improper venting. Any health and safety
issues identified by your Analyst should be a top priority and must be repaired by a qualified professional
before making efficiency upgrades to the home. *Caution: improper air-sealing may create safety issues.
CO – A byproduct of combustion, CO (Carbon
Monoxide) is a colorless, odorless and tasteless
gas that is slightly less dense than air. It is toxic to
humans in concentrations above 35 ppm.
Worst case – Your Analyst tested your heating
system under the "worst case" conditions for
proper operation. If your appliance fails this test, a
follow-up test is performed under “natural
conditions” to determine if there is a safety risk.
Range is vented outside Combustion appliance CO detector
Recommendations:
Make sure to use range hood exhaust fan whenever cooking in order to remove unwanted combustion gas
byproducts.
Test and replace carbon monoxide detectors periodically per the manufacturer’s recommendations.
Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
7
Total # of lamps (bulbs): 8
Incandescent or halogen lamps:
LED or CFL lamps: 8
Florescent tubes: 0
Refrigerator ENERGY STAR:
kWh usage per year:
Second fridge ENERGY STAR:
kWh usage per year:
Freezer ENERGY STAR:
kWh usage per year:
Dishwasher ENERGY STAR:
Clothes washer ENERGY STAR:
Lighting & Appliances
Energy Smart Tip:
Replace incandescent and CFL lamps with LEDs. LEDs use about 20% of the energy and last up to 25 times
longer than traditional incandescent bulbs. They also contain no toxic mercury and turn on instantly. Your
refrigerator is usually one of the biggest consumers of electricity in your home. If your fridge is more than 10
years old, consider replacing it with an ENERGY STAR certified unit.
Tips to reduce kWh base-load:
1)Use smart power strips for big energy users
like home entertainment systems
2)Use laptop computers instead of big towers –
they use up to 90% less power
3)Upgrade all of your appliances as they age to
ENERGY STAR
Your Energy Smart Analyst:
Tyler Sweeney
Revolution Energy
(970) 310-1522
Recommendations:
All lights and appliances are new efficient units.
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
8
Costs, Loans and Rebates
The Colorado Residential Energy Upgrade Loan (RENU) loan program is a statewide residential
loan program sponsored by the Collective Clean Energy Fund in partnership with Colorado-
based credit unions. It makes home energy upgrades easy and affordable by offering low-cost,
long-term financing for energy efficiency and renewable energy improvements.
Additional clean energy lenders, loan, and on-bill repayment programs are linked here.
Direct Installs
Your gas utility provider is Black Hills Energy
Your electric utility provider is Holy Cross Energy
1.
2.
3.In addition to reviewing the above links for rebates available through your utility provider, Energy
Smart Colorado may also have local rebates available for your community and your project may
be eligible for tax credits. Click here for more info.
Your assessment invoice
Assessment costs:Partner contributions:Your costs:
Base cost $500.00 Electric utility copay $200.00 Your base cost
Additional costs $0.00 Gas utility copay Additional costs $0.00
Quick Fix total $0.00 Energy Smart incentive Additional Quick Fixes $0.00
Program discount $0.00
Assessment total $500.00 Analyst payment $400.00 Your total $100.00
Quick Fix installed Quantity Cost
Bath aerators:0 $0.00
DHW blankets:0 $0.00
Kitchen aerators:0 $0.00
LED bulbs:0 $0.00
Pipe wrap:0 $0.00
Showerheads:0 $0.00
Thermostats:0 $0.00
Weatherstripping:0 $0.00
Thermostat setback:0 $0.00
DHW setback:0 $0.00
TOTAL $0.00
QF Annual Savings $$0.00
QF Annual Savings kWh 0
QF Annual Savings Therm 0
The following energy-saving items were
installed during the assessment:
Click here for electric rebatesHyperlink:RESIDENTIAL_ASSESSMENT_ELECTRIC_REBATE_URL:Click here for electric
rebates}}
Click here for gas rebatesHyperlink:RESIDENTIAL_ASSESSMENT_GAS_REBATE_URL:Click here for gas rebates}}
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
9
Energy Advising
Have Questions?
Energy Advisors at your local Energy Smart Colorado Energy Resource Center can provide
unbiased advice on the next steps toward making your home more comfortable and less costly to
operate. They can help you with applicable rebates, incentives, contractors and best practices so
you know you’re making educated decisions that are right for your home.
Our Energy Advisors are expert consultants who can:
•Provide expert advice about energy upgrades
•Help you prioritize next steps for your home energy improvements
•Connect you with qualified contractors
•Assist you with applicable rebates and financing, and help you with the paperwork
•Connect you with your utility provider’s incentive programs
Interested in Home Electrification (removing fossil fuels from your home)?
•Visit LoveElectric.org to learn more and to find rebates, installers, and additional resources
Heating our homes accounts for the biggest
portion of utility bills in our cold climate.
Source: U.S. Energy Information
Administration, 2020 Residential Energy
Consumption Survey.
You may receive a call from an Energy Advisor offering to review this assessment with you.
We look forward to working with you!
Call to speak with an
Energy Smart Colorado Energy Advisor:
CLEER: 970-704-9200
(This is a free service!)
How do our homes
use energy?
We’re here to
help!
Nash Residence
965 Westbank Rd, Glenwood Springs, CO 81601
richard@nashconstructioncompany.com
19703795172
10
Your Home Summary
Your Energy Smart Analyst Certification:
Revolution Energy
Analyst EIN: 26-3491397
RESNET HERS Rater
Analyst Certification #: BPI 5025703; RTIN 8689935
Metric Value Metric Value Metric Value
Building Type:Single Family Primary Roof:Unconditioned Attic Combustion Zone Location:Conditioned
Space
Year Built:2024 Construction:Wood Frame Ambient CO:
Square Footage:580 Exterior Finish:Composition Shingles Primary Heating Appliance:Boiler-Infloor
Primary Heating Fuel:Electricity Percentage of Total:100%Worst Case Spillage:
Number of Bedrooms:1 Existing R-Value:42 Worst Case Flue CO Air Free:
Number of Occupants:3 Recommended R-Value:Natural Conditions Spillage:
Electric Utility Provider:Holy Cross Energy Secondary Roof:Natural Conditions Flue CO Air Free:
Account #:261003804 Construction:Hot Water Heating Appliance:Tankless
Electricity Cost per kWh:$0.11 Exterior Finish:Worst Case Spillage:
Annual Electric Usage (kWh):15,567 Percentage of Total:%Worst Case Flue CO Air Free:
Annual Electric Cost:$1,897 Existing R-Value:Natural Conditions Spillage:
Gas Utility Provider:Black Hills Energy Recommended R-Value:Natural Conditions Flue CO Air Free:
Account #:6371912391 Existing Window Type:2-pane, wood/vinyl fr.,
Low-e Secondary Heating Appliance:Mini Split
Gas Cost per Therm:$1.42 Recommended Window Type:Worst Case Spillage:
Annual Gas Usage (Therms):Front Window (sf):Worst Case Flue CO Air Free:
Annual Gas Cost:$0 Right Window (sf):Natural Conditions Spillage:
Cubic Volume (cf):5,220 Back Window (sf):Natural Conditions Flue CO Air Free:
Blower Door Flow Rate (CFM50):368 Left Window (sf):Total # of Lamps:8
Primary Foundation:Slab on Grade Heating System Type:Boiler-Infloor Incandescent/Halogen Lamps:
Percentage of Total:100%Heating System Year Installed:2025 LED or CFLs currently installed:8
Existing R-Value:20 Heating System Fuel:Electricity Florescent Tubes:0
Recommended R-Value:Efficiency Rating (AFUE):95 Refrigerator ENERGY STAR:
Secondary Foundation:Recommended AFUE (or equiv.):Refrigerator kWh Usage per Year (est.):
Percentage of Total:%Secondary Heating System:Mini Split Second Fridge ENERGY STAR:
Existing R-Value:0 Cooling System Type:Heat Pump-Air
Source Second Fridge kWh Usage per Year:
Recommended R-Value:Efficiency Rating (SEER):26 Freezer ENERGY STAR:
Primary Wall Construction:Wood Frame Recommended SEER:Freezer kWh Usage per Year (est.):
Exterior Finish:Stucco Finish Fireplace Type:None Dishwasher ENERGY STAR:
Existing R-Value:37 Hot Water System:Tankless Clothes Washer ENERGY STAR:
Recommended R-Value:Hot Water System Year Installed:2025 Clothes Dryer ENERGY STAR:
Recommended Continuous R-Value:Hot Water System Fuel:Natural Gas Clothes Dryer Fuel Source:Electricity
Secondary Wall Construction:Set Temperature:120 Heat Tape Length (ft):
Exterior Finish:Solar Thermal Assist:N/A Heat Tape Estimated kWh per month:0
Existing R-Value:Pipes Insulated?:No Hot Tub Capacity:
Recommended R-Value:Efficiency Rating:0.85 Hot Tub Estimated kWh per month:0
Recommended Continuous R-Value:Recommended Efficiency:If Electric Baseboard, Length (ft):