Armory Park del Sol - 50

  • Description: Overview:Armory Park del Sol is a 97-home subdivision of single family homes located within Tucson's downtown historic Armory Park district.  Half of the homes in this community are estimated to achieve at least 50% energy savings above the Building America Benchmark. 

Key Partners: Tucson Electric Power, City of Tucson

Energy Efficiency Measures: 10" float slab with R-10 perimeter insulation, 8" CMU walls with exterior R-10 insulation, windows: U=0.35, SHGC= 0.29, overhangs for shading, R-38 ceiling insulation, SEER 14 (cooling/7.7 HSPF (heating) heat pump, ducts in conditioned space, shortened duct runs, jump ducts, less than 5% of total air handler flow measured duct leakage, central fan integrated whole house mechanical ventilation, 0.2 ACHnat blower door test results, Integrated Collector Storage solar hot water system with electric tankless wh backup and manifold "home run" distribution system, 66% Energy Star labeled or compact fluorescent lighting, 1.5 kWdc PV system, Tucson Electric Power company's Guarantee Home Program which guarantees heating and cooling costs for three to five years, eligible for preferential utility rates

Other Features: universal design features both within the homes and within the community as a whole, high interior thermal mass and PV system significantly reduce peak energy use, within proximity of many educational, cultural, and regularly-needed services

Weather Info:

  • Location: Tucson, AZ
  • Elevation: 2556.0
  • Fact: 0.790000021458
  • End Type: No
  • Regional Office: Seattle
  • Submitted: No
  • Approved: Yes
  • Modified: 2008-07-17
  • Visit: No

Specification 4275

  • Percent Energy Savings: 7
  • Submitted: No
  • Approved: Yes
  • Modified: 2008-05-05 00:00:00
  • Floor Plan: Unknown
  • Roof Radiant: No
  • Wall Radiant: No
  • Space Heating Capacity: 0.0

Specification 4280

  • Percent Energy Savings: 52
  • Submitted: No
  • Approved: Yes
  • Editor: Abdul Bari
  • Modified: 2009-07-20 00:00:00
  • Model Name: Typical APdS Home
  • Floor Plan: Typical APdS
  • Style: Single-family detached, site built
  • House Type: Production (G3)
  • Number of Stories: 1.0
  • Number of Bedrooms: 3
  • Floor Area: 1800.0
  • Conditioned Volume: 18000.0
  • Surface Area: 1800.0
  • Roof Framing: Flat
  • Roof Insulation: Fiberglass batt
  • Roof R Value: 38.0
  • Roof Radiant: No
  • Roof Upgrades: Parapet roofs maximize area for solar energy systems, but keep collectors hidden from view
  • Wall Framing: Concrete masonry
  • Wall Insulation: Rigid foam
  • Wall Sheathing: Polysocyanurate
  • Wall Sheathing R Value: 9.5
  • Wall Radiant: No
  • Wall Upgrades: High interior thermal mass exposed
  • Foundation Type: Slab on grade
  • Foundation Insulation: Rigid foam
  • Slab Insulation: 10.0
  • Foundation Upgrades: 10" float slab allows full perimeter insulation and grade for positive drainage away from homes
  • Window Glazing: Double pane - low-e
  • Window Framing: Vinyl
  • Window U Value: 0.34999999404
  • Window SHGC: 0.289999991655
  • Window Glazing Area: 220.0
  • Window Upgrades: Overhangs provide shading over most south- and west-facing glazing
  • Space Heating Type: Air Source Heat Pump
  • Space Heating Combustion: N/A
  • Space Heating Capacity: 42.0
  • Space Heating Efficiency: 7.0
  • Space Heating Efficiency Type: HSPF
  • Space Heating Location: Interior closet
  • Space Heating Energy Proto: 18.0
  • Space Heating Energy: 44.0
  • Space Heating Fuel: Electric
  • Lighting Energy: 30.0
  • Lighting Energy Proto: 21.0
  • Light Appliance: 70.0
  • Light Appliance Proto: 70.0
  • Renewable Energy Offset: 27.0
  • Cooling Type: Air Source Heat Pump
  • Cooling Capacity: 3.5
  • Cooling SEER: 14.0
  • Cooling Fuel: Electric
  • Cooling Energy Proto: 28.0
  • Cooling Energy: 122.0
  • Duct Type: Sheet metal
  • Duct Location: In conditioned space
  • Air Distribution Location: Interior closet
  • Air Distribution Upgrades: shortened duct runs, transfer grilles
  • Air Tight Upgrades: Blower Door test results: 0.2 ACHnat
  • Vent Type: Controlled supply
  • Vent Control: Other (or combination of the above)
  • Vapor Barriers: None
  • Hot Water Type: Solar assisted
  • Hot Water Combustion: Not Applicable
  • Hot Water Location: Interior closet
  • Hot Water Capacity: 1.0
  • Hot Water Efficiency: 0.980000019073
  • Hot Water Energy Proto: 5.0
  • Hot Water Energy: 31.0
  • Hot Water Fuel: Electric
  • Hot Water Upgrades: Manifold home run distribution system. Solar preheat (40 gal ICS system) with electric tankless backup.
  • HERS Rating 2006: 44.0
  • Modeler's Name: Amber Wood
  • Other Awards: EVHA Silver award winner, Arizona Innovation Award, 2007 Livable Communities Award
  • Benchmark Version: 2006
  • Total Energy Use: 297.0
  • Total Energy Use Proto: 142.0
  • Percent Energy Savings: 52.0
  • Percent Site Energy: 9.0
  • Total Energy Savings: 61.0

Data and Resources

Additional Info

Field Value
Author Bob Hendron
Maintainer Bob Hendron
Last Updated September 16, 2016, 22:10 (Etc/UTC)
Created September 16, 2016, 22:10 (Etc/UTC)
Construction Type New Construction
Evaluation Level Test House
Climate Hot - Dry
City Tucson
State AZ
Zip Code 99999
Phase Before 2010
Project Start Date 2004-03-01
Project Estimated End Date 2008-02-01
Project Actual End Date 2008-02-01
Completed House Count 33
Expected House Count 33
Energy Savings Percentage 29
Average Estimated Annual Source Energy (MMBtu) 1
Average Conditioned Floor Area (sqft) 1

Dataset extent

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