Lakeridge Trail
Net Zero Home with Fuentes Design
Walls and Roof
The building envelope involved constructing 2x6 walls with polyiso nailbase over existing slab and Zola windows. Outer finish is fire retardant stucco.
Subslab assembly
Over existing garage slab was a vapor barrier followed by 12" EPS then conventional floor framing bearing on existing walls, R 52. Existing sloped crawlspaces 3" ccsf (R20) over vapor barrier on ground. There was an existing basement slab that remained uninsulated of 723 sf.
Subslab R-value
52.0
Foundation wall assembly
basement walls 4" polyiso against concrete with dense pack cellulose in 2x4 interior stud cavity
Above grade wall assembly
Remodel/new construction 4" polyiso nailbase over 2x6 OVE 24" O.C. framing with netted and blown cellulose
Above grade wall R-value
35.0
Cathedral ceiling assembly
18" netted and blown dense pack cellulose in trusses
Cathedral ceiling R-value
64.0
Roof Assembly
Roof made with composite asphalt shingles from Certainteed rated as Landmark impact resistant: UL2218 Class 4 rating
Windows and Doors
Window Assembly:
Zola Thermoclad
Door Assembly:
Zola Thermoclad
Average window U-factor
0.15
Solar Heat Gain Coefficient
0.50
Door U-Factor
0.15
Door Area
124 sq ft
Mechanical Systems
Space cooling - Manufacturer & Model
ClimateMaster Q45 Trilogy ground source heat pump
Space heating - Manufacturer & Model
ClimateMaster Q45 Trilogy ground source heat pump
Domestic hot water - Manufacturer & Model
ClimateMaster Q45 Trilogy ground source heat pump w/integrated GDHM 80-gal tank with 10 kW electric backup
Domestic hot water - capacity
80 gal
Ventilation - Manufacturer & Model
ERV Ultimate Air 200dx
Lighting Manufacturer and Model
95% LED
Lighting Efficiency
Mechanical Equipment Installation Details and Comments
Forced air hard ducted system for heating and cooling; separate ERV duct system with flex duct at termination for noise control. ERV jumper ducts at bedrooms.
Envelope
Air Changes per hour, ACH50
0.49 ACH50
Air Changes per hour, CFM50
399.00
Walls and Roof
The building envelope involved constructing 2x6 walls with polyiso nailbase over existing slab and Zola windows. Outer finish is fire retardant stucco.
| Subslab assembly |
Over existing garage slab was a vapor barrier followed by 12" EPS then conventional floor framing bearing on existing walls, R 52. Existing sloped crawlspaces 3" ccsf (R20) over vapor barrier on ground. There was an existing basement slab that remained uninsulated of 723 sf. |
|---|---|
| Subslab R-value | 52.0 |
| Foundation wall assembly |
basement walls 4" polyiso against concrete with dense pack cellulose in 2x4 interior stud cavity |
| Above grade wall assembly |
Remodel/new construction 4" polyiso nailbase over 2x6 OVE 24" O.C. framing with netted and blown cellulose |
| Above grade wall R-value | 35.0 |
| Cathedral ceiling assembly |
18" netted and blown dense pack cellulose in trusses |
| Cathedral ceiling R-value | 64.0 |
| Roof Assembly |
Roof made with composite asphalt shingles from Certainteed rated as Landmark impact resistant: UL2218 Class 4 rating |
Windows and Doors
Window Assembly:
Zola Thermoclad
Door Assembly:
Zola Thermoclad
| Average window U-factor | 0.15 |
|---|---|
| Solar Heat Gain Coefficient | 0.50 |
| Door U-Factor | 0.15 |
| Door Area | 124 sq ft |
Mechanical Systems
| Space cooling - Manufacturer & Model | ClimateMaster Q45 Trilogy ground source heat pump |
|---|---|
| Space heating - Manufacturer & Model | ClimateMaster Q45 Trilogy ground source heat pump |
| Domestic hot water - Manufacturer & Model | ClimateMaster Q45 Trilogy ground source heat pump w/integrated GDHM 80-gal tank with 10 kW electric backup |
| Domestic hot water - capacity | 80 gal |
| Ventilation - Manufacturer & Model | ERV Ultimate Air 200dx |
| Lighting Manufacturer and Model | 95% LED |
| Lighting Efficiency | |
| Mechanical Equipment Installation Details and Comments |
Forced air hard ducted system for heating and cooling; separate ERV duct system with flex duct at termination for noise control. ERV jumper ducts at bedrooms. |
Envelope
| Air Changes per hour, ACH50 | 0.49 ACH50 |
|---|---|
| Air Changes per hour, CFM50 | 399.00 |