Your Name: Dara Flynn
Email Address: darasf@gmail.com
Phone: 2073709733
May we contact you about your entry in the future? Yes
If yes, which contact method do you prefer? email
Your building company:
Your builder's name: Dara Flynn
Your architecture firm:
Your architect's name:
Passive building consultant:
Street address of the retrofit: 584 Wilson Pond Rd
Town or city: Monmouth
State or province: ME
Original construction year: 1855
Year when passive building work was or will be completed: 2024
Lot type: rural
Type of structure: wood-frame
Building use type: residential
Brief description of the retrofit project: Complete new interior and exterior. Structural rebuilding where necessary, new heating, cooling, plumbing and electrical.
Why did you choose to do a whole, partial, or phased retrofit?
Total area of the structure (in square feet): 2000
Total renovated area of the retrofit project (in square feet) : 2000
Date when the project began or is expected to begin (enter "01" for the day if you only know the month and year): 01/01/2022
How many months did the renovation take? If ongoing, how many months is the renovation expected to take? : 28
What were the main goals of the retrofit? Were these goals driven by you, a client or both? :
Were people living in the building during renovation? no
Was this a registered historic building? no
Did you use historic tax credits? no
Passive house certified? no
If certified by another group, please list the organization:
Air tightness (ACH) before renovation:
Air tightness (ACH) after renovation:
Total annual electricity costs before renovation (in dollars):
Total annual electricity costs after renovation (in dollars):
Total annual electricity usage before renovation (in kWh):
Total annual electricity usage after renovation (in kWh):
Total annual heat costs before renovation (in dollars):
Total annual heat costs after renovation (in dollars):
Total annual heat usage before renovation (in kBtu) :
Total annual heat usage after renovation (in kBtu) :
Heat source(s) before renovation: wood-stove
Heat source(s) after renovation: heat-pump
Annual hot water cost before renovation (in dollars):
Annual hot water cost after renovation (in dollars):
Hot water system before renovation: a:1:{i:0;s:8:"electric";}
Hot water system after renovation: a:3:{i:0;s:8:"electric";i:1;s:20:"air-source-heat-pump";i:2;s:27:"on-demand-tankless-electric";}
Annual hot water energy usage before renovation (in kWh):
Annual hot water energy usage after renovation (in kWh):
Energy Use Intensity (EUI) of the structure before renovation:
Energy Use Intensity (EUI) of the structure after renovation:
Is the retrofit now using renewable energy sources?
If using renewable energy, please describe the type, kWh generation and any other system specs:
Were/are any passive house certified materials used? a:0:{}
Please describe your reasoning in using certified or non-certified materials:
Door type before renovation: steel
Door type after renovation: fiberglass
U-value of doors before renovation: 1.2
U-value of doors after renovation: .28
Please describe any methods you're using for controlling thermal bridging, water, vapor and air movement related to doors:
Window type before renovation: wood and vinyl replacements
Window type after renovation: fiberglass new construction
U-value of windows before renovation: 4
Please describe any methods you're using for controlling thermal bridging, water, vapor and air movement related to windows:
Please give this assembly a name (label), if you are entering multiple assemblies: walls
List all materials in the wall assembly before renovation (please list from outside to inside): wood clapboard, wood board sheathing, wood framing, fiberglass batt insulation, drywall
List all materials in the wall assembly after renovation (please list from outside to inside): composite clapboard siding (thick vinyl, Everlast Siding), 1x strapping, 2 layers of 1" rigid foam insulation, WRB houswrap (Henry Blueskin VP100), wood board sheathing, wood framing, mineral wool insulation (Rockwool), drywall
R-value of wall assemblies before renovation: 7
R-value of wall assemblies after renovation: 22
Please describe methods for controlling thermal bridging, water, vapor and air movement related to the wall assembly, e.g. materials used and construction: Thermal Bridging: 2-piece wooden bucks are used for all windows and doors, liquid flashing and flashing tape for all exterior seems and silicon caulk for inside sealing
Water, Vapor, and Air: water resistive, vapor permeable, self-adhered, air barrier membrane with liquid flashing and butyl flashing tape will be applied to the whole exterior of the home. all windows and doors will sit on one piece sloped sill pans.
Do you have another assembly to add? no
Please give this assembly a name (label), if you are entering multiple assemblies:
List all materials in the wall assembly before renovation (please list from outside to inside):
List all materials in the wall assembly after renovation (please list from outside to inside) Copy:
R-value of wall assemblies before renovation:
R-value of wall assemblies after renovation:
Please describe methods for controlling thermal bridging, water, vapor and air movement related to the wall assembly, e.g. materials used and construction:
Do you have another assembly to add?
Please give this assembly a name (label), if you are entering multiple assemblies:
List all materials in the wall assembly before renovation (please list from outside to inside):
List all materials in the wall assembly after renovation (please list from outside to inside):
R-value of wall assemblies before renovation:
R-value of wall assemblies after renovation:
Please describe methods for controlling thermal bridging, water, vapor and air movement related to the wall assembly, e.g. materials used and construction:
Materials in the roof assemblies before renovation: asphalt, board sheathing, ice and water shield, metal drip edge, air space, blown-in insulation
Materials in the roof assembly after renovation: asphalt, plywood sheathing, board sheathing, ice and water shield, metal drip edge, air space, mineral wool insulation
R-value of roof assemblies before renovation: 11
R-value of roof assemblies after renovation: 32
Please describe methods for controlling thermal bridging, water, vapor and air movement related to the roof assembly, e.g., materials and construction:
Construction makeup of the foundation and ground water/vapor management systems before renovation:
Construction makeup of the foundation and ground water/vapor management systems after renovation:
R-value of foundation and ground water/vapor management systems before renovation:
R-value of foundation and ground water/vapor management systems after renovation: 5
Please describe any methods for controlling heat, water, vapor, and air movement related to the foundation and ground water/vapor management systems:
Ventilation strategy (type and number of ERV or HRV) before renovation: no active ventilation prior to retrofit, passive air infiltration through walls and windows and doors
Ventilation strategy (type and number of ERV or HRV) after renovation: Single HRV ducted heating and cooling with air source heat pump, electric radiant floor heating in bathrooms
If any make-up air systems were used, please describe: dedicated makeup air for kitchen exhaust, dedicated ventilation air for wood stoves separate from hvac, makeup air for bathroom exhausts
Please describe any thermal bridging issues before renovation:
Please describe strategies to mitigate thermal bridging after the renovation:
Please describe any moisture issues before renovation: moisture intrusion into basement
Please describe the moisture control strategy after renovation: new mortar in basement and installation of rigid foam insulation and vapor barrier as well as mechanical dehumidification in basement
What rough percentage (0 - 100) of the wall assemblies have thermal bridges after renovation? 10
On a scale of 1 to 10, what was the perceived comfort of the structure before renovation? 2
On a scale of 1 to 10, what is the perceived comfort of the structure after renovation? 9
What was the total cost, or estimated cost, of design for the retrofit project (in dollars)? 1000
Total construction cost per square foot, or estimated cost, for the project (in dollars): 150000
Total door cost (in dollars): 5500
Total windows cost (in dollars): 15000
Total wall assembly cost (in dollars): 35000
Total roofing cost (in dollars): 22000
Total foundation cost (in dollars): 1000
Total ventilation cost (in dollars): 15000
Roughly what percentage (0 - 100) of the project was financed?
If you calculated it, what was the energy return on investment, i.e. the EROI (in dollars)?
On a scale of 1 to 10, how much did you take the EROI into consideration before starting the project (if it was calculated)?
What is the expected life of this retrofit (in years)? 30
If you do another retrofit, what would you do differently? If I had the money for different exterior insulation I would have used the Rockwool Comfort Board instead of rigid foam.
What do you wish you knew before starting the project? Everything, I started this project with construction experience but this is my first whole home renovation so there was a lot of researching and learning. It would have been easier if there was a central source of information that contained the bulk of what I was looking for.
Any other relevant info or data that we didn’t ask about? You did not ask if I had intended this project to meet passive house standards. I did not plan on meeting passive house standards, I wanted to include a lot of the commercially available new products to drastically increase the efficiency of the home. My motivation for this was to decrease my overall carbon footprint while living in the house. Not only will it decrease my monthly expenses but adding a substantial amount of insulation and an air barrier will allow me to electrify all the heating and cooling in the home. I do not plan on using fuel oil or propane for anything and only kept the chimneys and wood stoves for ambiance and supplemental heating on very cold days.
This survey seemed to assume this project was completed by a company or builder. I am just the homeowner but am completing a substantial portion of the rebuild myself. I hired people only when I needed a second set of hands or in case of the roof, when I needed to get active leaks under control quickly.
Financing: 1
Local regulations and rules: 9
Technical challenges: 4
Procuring materials: 7
Working with your builder and/or architect: 1
What would you say was the most successful part of the process? Actually finding products that I wanted to use.
