REVIEWED BLD2024-0321+Energy_Calculations+3.7.2024_9.53.43_AM+4110338REVIEWED
BY
CITY OF EDMONDS
Project Information
Taylee Pardi
Garage Conversion to Livable Space
1.5 Total Credits with Option 1.3
Contact Information
Nathan Bonck
Olympic Hills Drafting & Design, LLC
307-258-1841
nbonck of m ichillsdraftin desi n.com
WSU Code Compliance Calculator, WSEC 2018 BLD2024-0321 RECEIVED
Mar 11 2024
CITV OF EDMONDS
DEVELOPMENT SERVICES
/ Results *
UA Reduction = 1.03, Proposed UA is better than baseline by 1
Whole House Mechanical Ventilation Airflow Rate: 90 CFM with Run Time Percent of 50%, Unbalanced, Not Distributed
Results assume your inputs are complete and correct. Results do not constitute an approval. Analysis should be reviewed by your AHJ.
ANALYSIS SET UP
What code compliance pathway are you using?
Prescriptive Path Compliance with Option 1 referred
Project Building Type?
Addition
Occupancy Type?
R3 Single family homes and duplexes
Code Version?
WSEC 2018
Classification:
Addition of 500 sf or less -- 419 sq. ft.
Baseline Description:
Code Baseline - Baseline and proposed window areas are equal.
About Your Selection:
Up to 15 sf exempt window and 24 sf exempt door allowable
RESULTS - Comparison of Baseline and Proposed Design
Component Performance. R occupancies Baseline Proposed Design
U Area UA U Area UA
Doors U =
Overhead Glazing U =
Vertical Glazing U =
Flat/Vaulted Ceilings U =
Wall (above grade) U =
Floors over Crawlspace U =
Slab on Grade F =
Below Grade Wall U =
Below Grade Slab F =
0.300
0
0.0
0.500
32
16.0
0.300
40
12.0
0.027
387
10.4
0.056
514
28.8
0.029
0
0.0
0.540
76
40.9
0.042
0
0.0
0.570
1 01
0.0
0
0.0
0.500
32
16.0
0.300
40
12.0
0.027
387
10.4
0.054
514
27.8
0
0.0
0.540
76
40.9
01
0.0
01
0.0
Baseline UA Total 108.2 Proposed UA Total 107.1
Required Credits 1.5 Proposed Credits 2.0 from Tables 406.2 and 406.3
UA Percent Reduction 1.0
UA Reduction 1.0
If the Proposed UA <_ the Target UA, and the Proposed Credits from Table 406 are >_ those required in Section R406, then the home meets the WSEC.
Table R406.2 Fuel Normalization Credits
Fuel Normalization
Total Credits
System No.
Full Description
Select System Type
Credits 406.2
Energy Credits 406.3
406.2 & 406.3
For heating system based on electric resistance with a ductless mini -split heat pump system in
Electric Resistance with Ductless
4
accordance with Section R403.7.1 including the exception
Heat Pump
0.5
1.5
2.0
Table R406.3 Energy Credits
Energy
Option No. Category Select Options Credits Brief Description of Selected Options*
1
Efficient Building Envelope
0.0
2
Air Leakage Control and Efficient Ventilation
0.0
3
High Efficiency HVAC
Option 3.4
1.5
Ductless Split System, Zonal Control. Min HSPF of 10.
4
High Efficiency HVAC Distribution System
NA
5.1
Efficient Water Heating
0.0
5.2-5.6
Efficient Water Heating
0.0
6
Renewable Electric Energy
kWh
0.0
7
Appliance Package
0.0
Energy Credits
1.5
*Refer to WSEC 2018 Table R406.3 for complete option descriptions and requirements
THERMAL ENVELOPE DETAILS - Proposed Design
Conditioned Floor Area of Addition, Proposed Desi n 419 sq. ft
Pardi Garage Conversion WSEC 2018.xism 3/7/2024 1
WSU Code Compliance Calculator, WSEC 2018
Classification Addition of 500 sf or less
Notes
Exterior Doors
Plan
Component
Door
Width
Hei
ht
ID
Description
Ref.
U
Qt.
Feet
I"`"
Feet
I"`"
Area
UA
Exempt
Insulated Steel, Wood Edge ISteelWE
10-6C
0.16
1
3
°
6
8
20
3.2
0
0.0
0
0.0
0
0.0
0
0.0
01
0.0
0
0.0
0
0.0
0
0.0
0
0.0
0
0.0
Sum of Area and UA (excluding exempt door) 0 0.0
Exterior Doors Area Weighted U
Overhead Glazing
Plan
ID
Component
Description
Ref.
Glazing
U
Qt.
Width
Height
Area
UA
Feet
I"`"
Feet
I"`"
2 I wood, a=0.05 argon Code Baseline
10-6E
0.50
2
2
°
6
°
24
12
2 l wood, a=0.05 argon Code Baseline
10-6E
0.50
2
2
°
2
°
8
4
0
0
0
Sum of Area and UAI 321 16
Overhead Glazing Area Weighted U 0.500
Vertical Glazing Schedule
Rows to Show
1
Plan
Component
Glazing
Width
Height
Feet
I '"`"
Feet
I"`"
ID
Description
Ref.
U
Qt.
Area
UA
Exempt
1
U=0.30 Code Baseline
Table 406.2
0.30
1 2
51
°
4
°
40.0
12.00
Sum of Area and UA 40.0
12.0
Vertical Glazing Area Weighted U
0.300
Vertical Glazing and Doors Area Weighted U
0.300
FlatNaulted Ceilings
Plan
ID
Component
Description
Ref.
Attic
U
Area
UA
R49 blown Attic STD baffled Code Baseline, Option 1.1-1.4
10-7
0.027
387
10.4
Sum of Area and UAI 3871 10.4
Walls Above Grade
Plan
ID
Comscponent
Deri lion
Ref.
Wall
U
Net Area
UA
R21 cavity+RO foam INT 2X6W La Code Baseline
10-5
0.054
514
28
Sum of Area and UA 514 28
Floor over crawl or exterior
Plan
ID
Component
Description
Ref.
Floor
U
Area
UA
0
Sum of Area and UA 0 0
Slab on Grade less than 2 feet belowgrade)
Plan I Component Slab
Pardi Garage Conversion WSEC 2018.xism 3/7/2024
WSU Code Compliance Calculator, WSEC 2018
ID Description Ref. F Slab Perim FP
R-7.5 On to of slab(Existing slab conversion only) Footnote, Ta 0.540 76 41
Sum of Perimeter and FP 76 41
Below Grade Walls and Slabs
Plan
ID
Component
Description
Ref.
Wall
U
Wall
Area
Wall
UA
Slab
F
Slab Perim
Slab
UA
Sum of Area, Length and UA 01 0.0 01 0
Ventilation Requirements
Number of Bedrooms
2
Run -Time Percent in Each 4-Hour Segment
50
Is the system Balanced?
Unbalanced
Is the system Distributed?
Not Distributed
Ventilation Code Section
IRC, Chapter 15
Whole House Mechanical Ventilation Airflow Rate
90 CFM
HVAC Thermal Distribution System
Download RS-33 (2018) http://www.enerov.wsu.edu/Documents/Duct%20Testing%2OStandards%20
Is this a hydronic heating system?
INo
Location of Ducts
lUnducted
Location of Air Handler
I Unconditioned Space
Is Duct Testing Required? No
Compliance Certificate
Compliance Certificate Instructions
Insulation Certificate for Residential New Construction
Insulation Certificate
Duct Testing Affadavits
Existing Construction Affdavit, Existing
New Construction Affdavit, New
Prescriptive Checklist for 2018 WSEC
Prescriptive Checklist
Alterations (Remodel) Worksheet
Worksheet
Heating System Sizing - Proposed Design Try Out BetterBuiltNW's HVAC Sizing Tool: https://betterbuiltnw.com/resources/hvac-sizing-tool
Nearest Weather Station Seattle: Sea-Tac AP
Indoor Design Temperature 70 F
Outdoor Design Temperature 24 F
Design Temperature Difference (AT) 46 F
Conditioned Floor Area of Addition, Proposed Design
Conditioned Volume
Leave blank to use default of 8.5 ft. ceiling height
HVAC System Type
Location of HVAC Distribution System
419 ft2
3,562 ft3
Heat Pump Error: Inconsistent with Fuel Normalization selection
Unducted
Sum of UA, including exempt door and window
110
Envelope Heat Load
5,075 Btu / Hour
Sum of UA X AT
Air Leakage Heat Load
1,769 Btu / Hour
((Volume X 0.6) X AT) X .018))
Building Design Heat Load
6,845 Btu / Hour
Air Leakage + Envelope Heat Loss
Building and Duct Heat Load
6,845 Btu / Hour
For ducts located in unconditioned space: Sum of Building Heat Loss X 1.1
For ducts located in conditioned space or ductless: Sum of Building Heat Loss X 1
Maximum Heat Equipment Output
9,583 Btu / Hour
Building and Duct Heat Loss X 1.25 for heat pumps
Building and Duct Heat Loss X 1.40 for all other systems
Pardi Garage Conversion WSEC 2018.xism 3/7/2024 3