Lakeridge Trail
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 |