KVCC Sustainable Agriculture Building
Walls and Roof
The ASHRAE building envelope trade-off option was used for the project. The general approach was use the insulation on the exterior of the envelope.
| Subslab assembly |
4" reinforced concrete slab, vapor retarder beneath entire slab, 2" rigid insulation |
|---|---|
| Subslab R-value | 10.8 |
| Slab edge R-value | 10.8 |
| Foundation wall assembly |
Foundation wall is 1'- 1 1/2" thick and 5'-0" deep with 2" thick rigid insulation board on inside of wall. |
| Foundation wall R-value | 12.4 |
| Above grade wall assembly |
There are 2 main types of wall assemblies: |
| Above grade wall R-value | 17.0 |
| Flat attic assembly |
Standing seam metal roof, self-adhered roof underlayment, roof sheathing, R-50 blown-in insulation, plastic sheet air barrier at bottom of truss, 5/8" gypsum board ceiling |
| Flat attic R-value | 50.0 |
| Cathedral ceiling assembly |
standing seam metal roof, self-adhered roof underlayment, roof sheathing, 1 1/2" air space, structural insulated panel, plastic sheet air barrier, acoustical rated roof decking. |
| Cathedral ceiling R-value | 44.0 |
Windows and Doors
Window Assembly:
Aluminum clad wood windows, low-e, triple pane with decorative stained glass - Marvin
Aluminum clad wood window - low-e, double pane - Pella
Fiberglass windows - low-e, double pane - Pella
Door Assembly:
Aluminum clad wood commercial doors - Low-e with argon - Pella
Aluminum clad wood sliding doors - Low-e with argon - Pella.
| Average window U-factor | 0.29 |
|---|---|
| Solar Heat Gain Coefficient | 0.30 |
| Visible Light Transmittance | 0.55 |
| Door U-Factor | 0.30 |
| Door Area | 207 sq ft |
Mechanical Systems
| Space heating - Manufacturer & Model | Trane WXHF series- example |
|---|---|
| Space heating - capacity | 2 kW |
| Domestic hot water - Manufacturer & Model | Rheem ELD40 |
| Domestic hot water - capacity | 40 gal |
| Domestic hot water - efficiency | 92 kW |
| Ventilation - Manufacturer & Model | Annexair ERP-I-05-EW-D-DR-WM24-SS |
| Lighting Manufacturer and Model | Axis 4' linear rececessed fluorescent- T8, Neoray 14' linear recessed fluorescent- T8, Portfolio 4" recessed downlight- LED, Metalux 4' industrial strip- T8, Mcgraw-Edison exterior wall pack- LED, Sure-Lite egress & exit signs- LED |
| Lighting Efficiency |