SUNBLOCK Mixed Use Multifamily | The Loop Solar Decathlon SolarU.S....@SUNBLOCKTUCSONDepartmentofEnergyDecathlon2020Design Challenge University of Arizona
SUNBLOCK Mixed Use Multifamily | The Loop | UACONTENT FEASIBILITY & AFFORDABILITY 09 RESILIENCE 10 PROJECT INTRODUCTION 01 ENERGY PERFORMANCE 03 MARKET POTENTIAL 04 ARCHITECTURE 05 ENGINEERING 06 COMFORT & ENVIRONMENTAL QUALITY 07 OPERATIONS 08 INNOVATION 11 TEAM 00 SUNBLOCK 02
SUNBLOCK Mixed Use Multifamily | The Loop | UA 3 TABLES AND FIGURES 1.3 Climate and population data for Tucson 1.7 Axonometric with our goals 2.2 Goals for individual SunBlock components 2.3 SunBlock energy production and thermal storage 2.3 Map with future projections 2.4 Duck curve from the Department of Energy (energy.gov) 2.5 Average Tucson household energy use 2.5 PV Array energy production 2.6 Solar to electrical systems 2.6 Sunpower PV panel specs 2.7 Energy use during the day vs night 3.1 WUFI results 3.2 Sefaira lighting studies 4.1 Myers neighborhood introduction with demographics 4.2 Demographic profiles 4.3 Walkability score for Myers neighborhood (Walkscore.com) 5.1 Rendered site plan and program diagram 5.2 Drafted site plan and floorplans 5.3 Retrofit enlarged unit plan 5.4 Retrofit enlarged unit section 5.4 Retrofit HTFlux detail studies 5.5 Retrofit elevation 5.6 New Build enlarged unit plans 5.7 New Build walkway details 5.7 Wood to steel connection detail with HTFlux 5.8 New Build enlarged elevation 1 5.9 New Build enlarged elevation 2 5.10 Laundry, gym and daycare floorplans 5.11 Office space floorplan 5.12 Library floorplan 6.1 Structure assembly diagram 6.2 Retrofit assembly concept 6.3 Retrofit wall section with window detail 6.4 Retrofit wall section with parapet detail 6.5 Retrofit wall section with door detail 6.6 Wall assembly with material specs 6.7 New build wall section with window detail 6.8 New build wall section with roof detail 6.9 New build wall section with slab detail 6.10 Retrofit hvac diagram 6.11 New build hvac diagram 6.12 Daycare, laundry and gym hvac diagram 6.13 Library hvac diagram 6.14 Office hvac diagram 6.15 Plumbing diagram 6.16 grey and black water use 6.17 Water collection on site 7.1 Enlarged unit section thermal comfort diagram 7.1 Whole site thermal comfort diagram 7.2 Solar chimney studies from CoolVent 7.3 Library natural ventilation 8.1 In The Loop application air quality monitoring 8.2 In The Loop application energy use monitoring 8.2 Graph from Department of Energy’s “Reducing Plug-load Electricity Footprint of Residential Buildings” report 8.3 Lighting product specs 8.4 Appliances 9.1 Ownership structure diagram 9.2 Affordable housing rent limits in Tucson, AZ 9.2 Table from NOVOGRADAC Rent & Income Calculator (ric. 9.3novoco.com)Diagrams comparing Tucson, Arizona, and San Francisco costs of construction 9.4 Cost breakdown table 9.5 Map of material distributors 10.1 Screencap from UofMaryland’s Future Urban Climates web application (fitzlab.shinyapps.io) 10.1 WUFI results for future climate projections 10.2 Passive survivability in the case of a blackout test from WUFI 10.3 Global pandemic response plan 10.4 Rainfall runoff calculator graphs from US EPA National Stormwater Calculator (epa.gov) 10.5 Landscape plan with native plants 10.6 Bioswales and agrivoltaics 11.1 Innovation Loop diagram 11.2 In The Loop energy profiles
Tucson Electric & Power Local power company dedicated to renewable energy AeroBarrier Specializing in cost effective, consistent sealing methods.
At the college of architecture planning and landscape architecture, we strive to be innovative and sustainable in design, focusing on the ideas of passive design in our surrounding desert climate. All Bachelors of Architecture studios incorporate elements of sustainability and move to develop these skills together with the aspect of design.
Elizabeth Franzene 4th Year - BA Architecture Team Lead - Tucson, AZ Intern at Creative Machines. Hopes to be a force in the future of affordable housing.
OUR TEAM UNIVERSITY OF ARIZONA: COLLEGE OF ARCHITECTURE, PLANNING, AND LANDSCAPE ARCHITECTURE
Jonathan Bean Faculty Advisor - CPHC 2018 Race to Zero Student Design Competition + 2019 Solar Decathlon Design Challenge. Built a Sunblock prototype in Tucson’s Blenam-Elm neighborhood Front Studio International firm specializing in technical facade design
00.1 SUNBLOCK Mixed Use Multifamily | The Loop | UA
Watershed Management Group Teaching communities about choosing plants that help the local ecosystem.
TEAM 00.1
Hao Wang 4th Year - BA Architecture Designer - , China Interested in the future of building optimization and energy modeling. Rachel Schultz 4th Year - BA Architecture Designer - Phoenix, AZ Intern at Rob Paulus architects. Passionate about sustainable design.
SUNBLOCK
The Loop rethinks the typical commercial lot found on major street corners of the Tucson Superblock. Unanchored strip malls in Tucson have an average vacancy rate of over 15% , with retail losing over 1,200 jobs in the past year, the most of any sector of Tucson’s economy. These vacant buildings with largely open lots provide an opportunity for each community to develop much needed affordable housing, embrace a modern identity, provide community resources and become part of the Sunblock system. Tucson ranks among the lowest-income cities in Arizona, with an average household income 26% lower than the rest of the United States. By complying with PHIUS +2018 building standards, implementing new building systems and connecting to a micro grid, The Loop reinterprets Tucson’s vernacular multi-family courtyard buildings. SunBlock mixed-use housing complex provides a safe, sustainable and healthy environment to residents and the broader community, while also densifying a lot that was previously predominantly asphalt and prioritizing low-income residents of Tucson.
PROJECT DATA: + Location: Tucson, Arizona - Hot, arid climate (ASHRAE Climate Zone 2B) + Zone: C-2 and Opportunity Zone + 248,342 sf lot + Site and buildings oriented east/west + New build: 56 units (24 one-bedroom, 16 two-bedroom, 16 three-bedroom), 22,780 sf - 3 stories 22,780 sf total - 86% residential (19,450 sf), 14% commercial (3,330 sf)
DESIGN STRATEGIES:
Mixed Use MultifamilySUMMARY
| The Loop | UA
PROJECT SUMMARY:
PROJECT 01.1
INTRODUCTION
+ Retrofit: 34 two-bedroom units, 67,538 sf - 93% residential (60,780), 7% commercial (4,758 sf)
+ Occupancy: 172 people + Target source EUI: 19 kBtu/sf/year (less than half the DOE standard) + Construction cost: $170/sf
Our team approached this project with a systems thinking mindset. The proposed PV array will provide energy for operations during mid day while also providing enough energy to chill and cool stored water. This water will be used to cool the commercial and community spaces on the lot and provide chilled water to the homes of the Myers neighborhood. The existing structure that once housed a row of 1,200 sf retail units has been retrofitted into PHIUS +2018 standard homes by increasing insulation, replacing existing windows and doors, providing balanced ventilation and natural daylight to users. Larger sections of the existing structure will serve as community resources such as a daycare, library, and public transportation hub. With the same standards in mind, a mixed income multifamily mixed use apartment complex has been built along the Southern edge of the site featuring units optimized for reduced energy use. These units feature efficient layouts resulting in minimal solar heat gain and shortened utility runs, along with marketconscious retail on the ground floor. What was originally a large parking lot will become a lush courtyard with permeable tiles sustained by rainwater that provides a social space for visitors and a connection between the retrofit and new apartments.
DOE PHIUS + 2018 Exterior Wall Thermal Performance = R19 Roof Thermal Performance = R55 Foundation Edge Thermal Performance = R7 Whole Window U-Value = 0.25, SHGC: < 0.25 U-Value (North, South, East, West) < 0.3 Target Air Change Rate: 0.06 CFM/ft2 Peak cooling demand : 4.2 kBtu/hr Peak heating demand : 2.8 kBtu/hr Balanced Ventilation
Hot water: On Demand Recirculation System EF 1.5 Appliances: Energy Star Renewable Ready CFA = 20,663 sf EUI = 19 kBtu/sf/yr SYSTEMS SPECIFICATIONS:
PROJECT HIGHLIGHTS: The Loop will not only rejuvenate the Myers community, but also provide a blueprint for all cities looking to create dense, walkable, community-focused urban centers. The project will be even more useful to cities in similar climate regions who can use The Loop as an example for zero energy living. In partnership with community leaders such Pima County services and the Living Streets Alliance, this project can transform the identity of a nondescript retail lot and introduce the city of Tucson to a sustainable standard of energy consumption in residential architecture. The Loop will nurture the Myers neighborhood by providing them with resources such as affordable housing, increased walkability, access to public transit, daycare and business opportunities.
01.2 SUNBLOCK Mixed Use Multifamily | The Loop | UASUMMARY TECHNICAL SPECIFICATIONS
+ Ventilation, heating and cooling: Minotair - One Pentacare V12 compact air treatment unit in each unit - Cooling capacity = 11,200 BTU/Hr , heating capacity = 6,700 BTU/Hr - MERV 15 (F9) air filtration removes 95% of particles as small as 0.3 pm - Fresh air range: 80-120 CFM
+ Hot water: 12 CHP-120 Fully Integrated Heat Pump by A.O. Smith - ENERGYSTAR qualified with an industry-leading 4.2 COP - Heat pump technology provides an energy efficient way to heat water with electricity integrated 119-gal tank - Fist-hour delivery exceeds 150 GPH - Dual 6 kW heating elements provide additional heating capacity for periods of high demand
for
A single
- Arizona has the highest total daily solar resource out of the entire United States, with over 5.75 kWh per meter squared a -day.High solar radiation and minimal cloud cover means that photovoltaics perform at their most e rates. kW of PV panels produce kWh/year, more than the same panel in New York City.
1,760
25%
can
OPPORTUNITIESTucsonprovidesidealconditions a zero energy built environment.
01.3 SUNBLOCK Mixed Use Multifamily | The Loop | UAOUR CITY
- Existing buildings in a hot, dry climate require little additional work in order to DOE and PHIUS certification.
icient
2000 - 723,0002020 - 982,0002040 - 1,255,000 TUCSON CLIMATE ZONE HOT-DRY2B Cooling degree days Heating degree days 3945 1427 National yearly rainfall Tucson yearly rainfall 39” 12” National yearly rainfall Tucson yearly rainfall 39” 12” 30 Average daily temperature range Population Growth 2.5% 87% 1.6% Transportation to Work
earn
- Roads aligned on a grid make Tucson perfect for repeating SunBlock -neighborhoods.Wasteheatproduction from year-round cooling loads in large buildings can be harnessed and turned into useful energy with SunBlock.
The Santa Cruz River was the site of the first north American indigenous people who farmed with irrigation. It is now a dry riverbed due to over-development.
Saguaro Cactus grow only in the Sonoran desert region which includes Southern Arizona, Southern California and parts of Mexico.
“It smells like rain” Tucson locals can always be heard announcing the arrival of rain. This is because creosote bushes have a unique composition of oils that are fragrant when humidity increases, causing the stomata to open. “The best 23 miles of Mexican food in the US” Tucson is a UNESCO City of Gastronomy featuring famous tacos, Sonoran Dogs, Eegee’s, Pho, and Curry.
Mural Culture: Tucson has a long loved tradition of commissioning local artists to decorate the city with murals. Businesses, schools and government buildings alike are adorned with story-telling art.
Mount Lemmon: With an elevation change of almost 7,000 ft, ecosystems change drastically on the mountain, which is always at least 20 degrees cooler than the city. Big horn sheep, deer and eve bears can be found here.
01.4 SUNBLOCK Mixed Use Multifamily | The Loop | UAOUR CITY
Monsoons: Tucson enjoys a heavy downpour of rain twice a year. The summer rains, or Las Aguas, last from July to September. The winter monsoon occurs in December and January.
01.5 SUNBLOCK Mixed Use Multifamily | The Loop | UAOUR SITE GANOUNGELEMENTARY S I T PARKEMYERS-FREEDOM Myers Neighborhood
01.6 SUNBLOCK Mixed Use Multifamily | The Loop | UAOUR SITE SUNBLOCK ELEMENTARYFREEDOM PARK UTILITY BUSEXISTINGEASEMENTBUSSTOP17:STOPSEVERY30MIN FORMERLY MYERS-GANOUNGFREEDOM PARKEXISTING BUS STOPUTILITY EASEMENT 4929 E 29TH ST TUCSON, AZ 85711 + C-2 Zone General commercial zoning that encompasses agriculture, civic, recreational and utility buildings. Priority to commercial use that shows compatibility with the neighborhood. + 79,500 sf existing building conditioned space with 168,800 sf asphalt parking lot. + Opportunity Zone overlay reduces capital gain taxes in an effort incentivise new development. This will save money that can go towards the project and help encourage businesses to occupy new commercial spaces on the site. + Within walking distance are the SunBlock elementary school retrofit, SunBlock residential projects within the Myers neighborhood, Freedom Park and Pima community college + Public Transportation consists of an existing unshaded bus stop at the south edge of the site + Orientation The existing site and buildings are oriented east/west, providing optimal sun exposure
01.7 SUNBLOCK Mixed Use Multifamily | The Loop | UAOUR GOALS Agrivoltaics Clean E icient Energy Accessible HealthyFood Access TransportPublicto WalkablityIncrease SolarRidePoweredShare VentilationMaximizeNatural RainCollectWater throughConnectivityIncreasedBike Path Sequester carbon with constructionwood Reduce Utility Rates RenewablesWith Cool Air Bioswaleswith ResourcesCommunityShared EliminateThermalBridging
CASA DONANTE
Single family home that focuses on the use of energy produced by the dependence.reducingaenergypotentialDemonstratingSunBlock.thetolowercostswithinhome.Successfullygrid
The SunBlock is a regenerative, replicable micro-community. The ultimate goal is for different building types within existing communities to generate enough excess energy and water to distribute to the surrounding community members effectively making the entire blocks net zero.
SUNBLOCK ABOUT SUNBLOCK
GANOUNG Elementary school remodel which is the itenergycollectingFocusingneighborhood.offoundationthesunblockonsolarandstoringwithinthesystem.
SUNBLOCK Mixed Use Multifamily | The Loop | UA SUNBLOCK 02.1
The need for variety of programs within a single neighborhood is to offset existing homes energy use. Sunblock contains a plug in attachment designed to aid in the existing homes energy consumption in a neighborhood, allowing the system to be integrated into older neighborhoods without the increased cost of fully retrofitting an existing home. By sharing thermal energy with every home in the community, we can allow for greater comfort at a reduced cost, turning an individual burden into a shared benefit.
In the 2020 Tucson Model, there is a retrofitted elementary school, remodel/addition mixed use housing complex, a new suburban family house, and new casita style attached homes. The elementary school and mixed use buildings are the main batteries to for the thermal banks and homes are additional boosters to the integrated neighborhood system.
THE LOOP Vacant strip mall retrofit into a residential building alongside a new mixed-use complex. Both throughoutzeroandthefamilies,supportbuildingslowincomeservecommunityachievenetenergyusetheyear.
MYERS
BARRIO 2.0 Urban family home which allows owners to increase density and create integrationsimplicityFocusestheirincomeadditionalfromproperty.ontheandfound in net zero design.
SunBlock works by channelling excess energy collected by the photovoltaics across the system and storing it thermally in individual water tanks. This water will then be used to assist cooling or heating the air and water in the plumbing and mechanical systems of each home. Therefore offsetting the energy cost produced by these systems.
02.2 SUNBLOCK Mixed Use Multifamily | The Loop | UASUNBLOCK
Provideenergyforoperations,chillandcoolstoredwater.
Highcostconstruction
Awaytocreaterevenuethroughrenting.
SSF USF MM ES IONIONIONIONTNEVRETININTERVENTINTERVENTINTERVENT BRCCCCURRENTURRENTURRENTURRENTETROFITTHELOOPARRIO2.0CASADONANTE
Priorityoflow-incomeresidentsinthecommunity
LowhouseholdincomeintheMyersNeighborhood
Agingpowergrid
ProvideReducecostofadditionandintroduceincomethroughproperty.
Helplowertheoperationalcostofahomethroughthesharingofpower. constructionwork.
Overusageofwater
Lackofjobsinretail
Agingofbuilding,systems. Neglectedresourcethreemonthsoutoftheyear. Schoolbecomesabattery,watercollector,andsocialcommunityspace. CanbereplicatedandintegrationthroughoutTucsonschools Generateenergyanddistributeittothesurroundingcommunity
Vacantbuildingswithlargeopenlotsandcommunityresources
andsystemsintegration
Neglectedhomesandlandscapes.
Helplowertheoperationalcostofahomethroughthesharingofpower. Replicable,foranylot/neighborhoodinTucson Produceenergyforthelargersystemitisintegratedinto
10MIN WALK 20MIN. WALK 30MIN.WALK POTENTIAL SUNBLOCK POTENTIAL SUNBLOCK 2019 SUNBLOCK DOWNTOWNUofA FREEWAY 2020 SUNBLOCK 02.3 SUNBLOCK Mixed Use Multifamily | The Loop | UASUNBLOCK E 22ND ST RDSWANSE 29ND ST AVEROSEMONTS ProductionSunBlock SunBlock Generation Station Chilled/Hot WaterSTORAGETHERMAL THE GRID INVERTER PV ARRAY AIR TO WATER HEAT PUMP
TUCSON ELECTRIC POWER - GRID STRESS
Without a battery, energy from solar panels can only be produced and utilized during the day (in grey). As more homes switch to solar power, the grid is relied on less during sunny hours of the day (10am-6pm).
Unfortunately, peak loads are in the evening, once the sun goes down and residents return home from work. Now, the grid must take on the extreme stress of peak load hours after operating at its lowest capacity in the Localafternoon.power
12 a.m. 3 a.m. 6 a.m. 9 a.m. 12 p.m. 3 p.m. 6 p.m. 9 p.m.
02.4 SUNBLOCK Mixed Use Multifamily | The Loop | UA 20202202012015201201201234617018-9 P V PRODUCTION
companies have become reluctant to support more homes installing solar panels because of this problem. Tucson needs SunBlock to redistribute solar energy during peak load hours and reduce grid stress.
HOUR MEGAWATTSx1000
321 1 2 3 GRID STRESS
DYNAMIC RESULTS STATIC RESULTS ZONE 1 : Residential ZONE 2 : Commercial SUNBLOCK Mixed Use Multifamily | The Loop | UA ENERGY PERFORMANCE 03.1 WUFI RESULTS
03.2 SUNBLOCK Mixed Use Multifamily | The Loop | UASOLAR POWER Arizona households use 16,500,000 BTU to cool each year (US EIA) The Myers neighborhood uses 6,534,000,000 BTU on cooling per year There are Households396in the Myers Neighborhood 556,553 1,899,036,753.42kWh/YearkBTU/Year 1,897,006,744.6 BTU/Year EXCESS Projected EUI 19.46 kBTU/ft2/yr X sqft Projected Energy Use per year 2,030,008.82 kBTU 310,061 kWh/Year kWh/Yr39,791 104,905 kWh/YrkWh/Year101,796 AverageSpaceWaterAirAppliances/ElectricityconditioningHeatingheatingTucsonHousehold Energy Usage PV ARRAY TOTAL = 454,757 kWh/Year 1kWh/year = 3412.14 kBTU/year The Myers neigh borhood 100% Cooled by Sun Block’s The Loop
SOLAR POWER
During the day, The Loop relies on solar power from its PV array. Energy is stored ina battery for later use, and in thermal storage to be redistributed. At night, the batterysupplies energy to the ERV and hydronic fan coil.
03.4 SUNBLOCK Mixed Use Multifamily | The Loop | UA ResidentialResidentialCommercialCommercial AIR TO WATER HEAT PUMP STORAGE ERVCONDITIONINGERVCONDITIONINGFANHYDRONICCOILHYDRONICFANCOILSTORAGE
THEBATTERYGRID
PV ARRAY POWER SUPPLY
INVERTER
10’ Skylight on a flat roof
One 5’ skylight on a 20 degree angled roof, facing south produced the most desirable result. The unit is well lit, leaving a dark space for bedrooms near the South. It also stood out when considering other factors like minimal air leakage, winter solar heat gain, lower cost, and room for solar panel placement.
10’ Skylight on a 20 degree angled roof, facing south 5’ Skylight on a 20 degree angled roof, facing south
Sefaira for Revit was used to test skylight sizes and orientations to allow more light into the retrofit units.
10’ Skylight on a 20 degree angled roof, facing north
Two 5’ skylights on a 20 degree angled roof, facing sorth
LIGHTING
Two 5’ skylights on a 20 degree angled roof, facing south
SUNBLOCK
03.5
Keeping to the Sonoran style, Myers embraces color. These swatches were taken from homes in the neighborhood. MYERS NEIGHBORHOOD Myers can be found in the 85711 zip code. This is the poorest district in Tucson. 88% reducedreceiveStudentsfreeorlunch Median rent Myers | $644 Household income Myers | $27,000 National average | $63,100 43%44% Home value Myers | $85,560 National average | $184,700 46% National average | $1,470 SUNBLOCK Mixed Use Multifamily | The Loop | UA MARKET POTENTIAL 04.1 OUR MARKET
WHY MYERS MATTERS
RETROFIT
The two-bedroom retrofit units are priced below market rate and utilize a qualification program that prioritizes renters with more needs, like single-parent families and the elderly. This also encourages generational mixing which leads to a healthy community. The new building is priced predominantly at market rate, with rules that help ensure the price of rent does not exceed the average median income for the area. Rent reductions programs are still available, catering to the many Tucson locals who have a sustainable income but have been pushed out of the housing market. I am retired and living o of social security, which is about 20% AMI. I would like to live somewhere with community values and friendly neighbors.
I love Tucson! I have a bachelors, but prices have gone up and I can no longer a ord the average rent. I would like to live somewhere that captures the spirit of Tucson. I live o of 40-60% AMI. BUILD RENTED MYERS
I am a single parent looking to live close to a good school. I work full time, so its important to me that my kids have a safe place to play in a friendly community. I live o of 30% AMI.
NEW
HomeHouseholdMedianMyersMyersMyers
SUNBLOCK Mixed Use Multifamily | The Loop | UA 04.2
DEMOGRAPHICS
The people of the Myers neighborhood are the perfect recipients for a project as special as The Loop. They live in a community that has experienced the symptoms of rapid urbanization without the means to support it. With the price of homes often surpassing the average surrounding income, many homes are left vacant. These vacancies can be observed in commercial spaces as well, as businesses retreat to more dense parts of the city. Residents of Myers are in need of a built environment that better serves their needs. The Loop focuses in on distinct markets that make up the surrounding community.
RETROFIT
Median
04.3 SUNBLOCK Mixed Use Multifamily | The Loop | UAMEETING NEEDS Easement Adaption Bedding PermeableCurb/EdgeCourseRestraintPaversOpen-GradedBaseSub-BaseSub-Grade To encourage growth and connectivity, the Loop and SunBlock are working to improve the Myers’ neighborhood Walk Score by adapting existing utility easements into bike and walking paths that help connect the surrounding area. 17’- 0” EXISTING PowerlinesBuried0”4’STEAM CHILLED H2013’- 0” Connect Park to The Loop1 THELOOP FREEDOMPARKOPPORTUNITIES PHASE 2 FREEDOM PARK THE LOOP SWANPARKSWANPARK Groceries PHASE 2SunBlock1 MYERS1E.S Walk 101.7GroceriesBike351.7Groceriestomilesminutestomilesminutes HOT WATER
SUNBLOCK Mixed Use Multifamily | The Loop | UA Existing New Build ARCHITECTURE 05.1 SITE PLAN LIBRARYLAUNDRY RIDE SHAREGYM DAYCARE MAKER RETAIL URBAN URBAN FARM FARMSPACE URBANRETAILPUBLICRESIDENTIALRESOURCESFARMNew Build: 57 units 28 Studio: 415 sf 12 1 BD: 450 sf 7 2 BD: 550 sf 20 3 BD: 800 sf Retrofit: 32 unit 32 2 BD: 1060 sf AREA: 93,240 sf Area: 127,162 sf AREA: 33,920 sf Area: 2,730Area:sf 6893 sf 83% 17% 83% 15% 02% Area: 23,150 sf Resources Library : 11,300 sf O ice space : 5,450 sf Daycare: 6,400 sf AREA: 23,150 sf
05.2 SUNBLOCK Mixed Use Multifamily | The Loop | UAFLOORPLANS Site Plan SCALE : 1/32”=1’
05.3 SUNBLOCK Mixed Use Multifamily | The Loop | UARETROFIT Retrofit Unit Plan SCALE : 1/8”=1’
Retrofit Unit Section SCALE : 1/8”=1’ N S
South To reduce thermal bridging through the exposed concrete slab on the south, a concrete bench (in yellow) with a 9”x12” rigid insulation core (in red) is installed. North To reduce thermal bridging through the exposed concrete slab on the north, the slab is cut and replaced with 4” of insulation (in red).
05.4 SUNBLOCK Mixed Use Multifamily | The Loop | UARETROFIT
Before AfterAfterBefore
05.5 SUNBLOCK Mixed Use Multifamily | The Loop | UARETROFIT ELEVATION
05.6 SUNBLOCK Mixed Use Multifamily | The Loop | UANEW BUILD
05.7 SUNBLOCK Mixed Use Multifamily | The Loop | UA Exterior Walkways SCALE : 1/4”=1’ Wood to Steel Connection Detail Traditional wood to steel connection performancethermal The Loop’s thermally broken wood to steel connection thermal performance NEW BUILD WALKWAY
05.8 SUNBLOCK Mixed Use Multifamily | The Loop | UANEW BUILD ELEVATION
05.9 SUNBLOCK Mixed Use Multifamily | The Loop | UANEW BUILD ELEVATION
05.10 SUNBLOCK Mixed Use Multifamily | The Loop | UACOMMUNITY
LAUNDRY/GYM DAYCARE
05.11 SUNBLOCK Mixed Use Multifamily | The Loop | UAOFFICE SPACE
05.12 SUNBLOCK Mixed Use Multifamily | The Loop | UALIBRARY
Perpendicular CLT panels Add lateral support and turn light wells into structural cores
Ensures minimal thermal bridging from exterior walkways
Horizontal CLT Panels Serve as structural floor members, no beams required Vertical CLT Panels Serve as structural parti walls between units
Steel Superstructure
SUNBLOCK Mixed Use Multifamily | The Loop | UASTRUCTURE ENGINEERING 06.1
06.2
Mixed Use Multifamily LoopCONCEPT
Roof Assembly (from outside) R-38 Fully adhered TPO 1/2” plywood 14” wood I joist with denim insulation R-55 2x4” wood frame with denim insulation R-13 Taped 5/8“ plywood 5/8” plywood interior finish Wall Assembly (from outside) R-16 Stucco finish with metal lath Building paper 1” rigid insulation R-3 2x4” wood frame with denim insulation R-13 Taped 5/8“ plywood 5/8” plywood interior finish Parti Wall Assembly 5/8” plywood interior finish Taped 5/8” plywood 2x4” wood frame Taped 5/8” plywood 5/8” plywood interior finish Existing Retrofit addition Air barrier
| The
PLYWOOD AIR BARRIER
TAPED Performance specs
| UARETROFIT
SUNBLOCK
06.3 SUNBLOCK Mixed Use Multifamily | The Loop | UA STUCCO FINISH WITH METAL LATH 1” RIGID INSULATION R-3 2X4 WOOD FRAMING TAPED 5/8” PLYWOOD AIR BARRIER BUILDING PAPER 5/8” PLYWOOD INTERIOR FINISH THERMAL AIR/VAPORWATER EXISTING US DOE Recommended R-value Roof Wall Floor 30-60 13-19 13 WINDOW DETAIL SCALE : 1.5” = 1’ 4” DENIM INSULATION R-13 WHOLE WALL ASSEMBLY R-19 OPERABLE VINYL FRAME DUAL PANE LOW-E WINDOW W/ ARGON U-VALUE : 0.16 SHGC : THERMAL0.3 BUCK R-17.5 CONCRETE BENCH W/ 14” RIGID INSULATION CORE R-55 STUCCO DRAINAGEKEYMAT RETROFIT WALL SECTION
06.4 SUNBLOCK Mixed Use Multifamily | The Loop | UA METAL PARAPET CAP STUCCO FINISH WITH METAL 1”LATHRIGID INSULATION R-3 2X4 WOOD FRAMING TAPED 5/8” PLYWOOD AIR BARRIER BUILDING PAPER 5/8” PLYWOOD INTERIOR FINISH TAR AND GRAVEL THERMAL AIR/VAPORWATER EXISTING 14” WOOD JOIST @ 24” O.C. 14” DENIM INSULATION R-55 US DOE Recommended R-value Roof Wall Floor 30-60 13-19 13 PARAPET DETAIL SCALE : 1.5” = 1’ 4” DENIM INSULATION R-13 WHOLE WALL ASSEMBLY R-19 WHOLE ROOF ASSEMBLY R-55 DRAINAGE MAT RETROFIT WALL SECTION
06.5 SUNBLOCK Mixed Use Multifamily | The Loop | UA THERMAL AIR/VAPORWATER EXISTING US DOE Recommended R-value Roof Wall Floor 30-60 13-19 13 STUCCO FINISH WITH METAL LATH 1” RIGID INSULATION R-3 2X4 WOOD FRAMING TAPED 5/8” PLYWOOD AIR BARRIER BUILDING PAPER 5/8” PLYWOOD INTERIOR FINISH DOOR DETAIL SCALE : 1.5” = 1’ 4” DENIM INSULATION R-13 WHOLE WALL ASSEMBLY R-19 THERMATRU FIBERGLASS DOOR R-7 4” RIGID INSULATION THERMAL BREAK 6”R-15CONCRETE SLAB THERMAL BUCK R-17.5 DRAINAGE MAT RETROFIT WALL SECTION
SUNBLOCK
Bonded Logic’s UltraTouch denim insulation Manufactured in Chandler, Arizona from 80% recycled denim and 100% natural materials. R-4 per inch. Acoustically rated 0.33 NRC and 13 STC per inch.
Absorbs heat during the day, releases at night through the use of all natural, mineral-based phase changing gel, similar to thermal mass at a fraction of the weight. Grade A fire rating and also acts as a vapor barrier.
|
WALL ASSEMBLY
Mixed Use Multifamily The Loop UA
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06.6
Insolcorp’s Infinite-R phase change material
Columbia Forest Product’s PureBond hardwood plywood Formaldehyde free, bonded with soy-based adhesive. Cheaper and more water-resistant than standard plywood panels. Manufactured in Oregon.
06.7 SUNBLOCK Mixed Use Multifamily | The Loop | UANEW BUILD WALL SECTION TAPED 5/8” PLYWOOD AIR BARRIER INSOLCORP PHASE CHANGESTUCCOMATERIALFINISH WITH METAL LATH 5/8” PLYWOOD INTERIOR FINISH 2X4 WOOD FRAMING WITH 4” DENIM INSULATION R-13 OPERABLE VINYL FRAME DUAL PANE LOW-E WINDOW W/ U-VALUEARGON : 0.16 SHGC : THERMAL0.3 BUCK R-17.5 STUCCO KEY 1” RIGID INSULATION R-3 WHOLE WALL ASSEMBLY R-16 THERMAL AIR/VAPORWATER US DOE Recommended R-value Roof Wall Floor 30-60 13-19 13 WINDOW DETAIL SCALE : 1.5” = 1’ DRAINAGE MAT
06.8 SUNBLOCK Mixed Use Multifamily | The Loop | UA THERMAL AIR/VAPORWATER US DOE Recommended R-value Roof Wall Floor 30-60 13-19 13 ROOF DETAIL SCALE : 1.5” = 1’ TAPED 5/8” PLYWOOD AIR BARRIER INSOLCORP PHASE CHANGEMATERIALSTUCCOFINISH WITH METAL LATH 5/8” PLYWOOD INTERIOR FINISH 2X4 WOOD FRAMING WITH 4” DENIM INSULATION R-13 1” RIGID INSULATION R-3 WHOLE ROOF ASSEMBLY R-40 9 PLY STRUCTURAL CLT PANEL 10” WOOD I JOISTS 24” O.C. WITH DENIM INSULATION R-40 TAR AND DRAINAGEGRAVELMAT NEW BUILD WALL SECTION
06.9 SUNBLOCK Mixed Use Multifamily | The Loop | UA THERMAL AIR/VAPORWATER US DOE Recommended R-value Roof Wall Floor 30-60 13-19 13 SLAB DETAIL SCALE : 1.5” = 1’ TAPED 5/8” PLYWOOD AIR BARRIER INSOLCORP PHASE CHANGESTUCCOMATERIALFINISH WITH METAL LATH 5/8” PLYWOOD INTERIOR FINISH 2X4 WOOD FRAMING WITH 4” DENIM INSULATION R-13 1” RIGID INSULATION R-3 6” CONCRETE SLAB 3 PLY STRUCTURAL CLT DRAINAGE MAT NEW BUILD WALL SECTION
06.10 SUNBLOCK Mixed Use Multifamily | The Loop | UARETROFIT HVAC EXHAUSTSUPPLY Retrofit Duct Plan SCALE : 1/8”=1’ EXHAUSTSUPPLY10’ ERV
06.11 SUNBLOCK Mixed Use Multifamily | The Loop | UANEW BUILD HVAC ®
RETURNSUPPLY06.12 SUNBLOCK Mixed Use Multifamily | The Loop | UACOMMERCIAL HVAC
All community/commercial spaces on that are part of The Loop will use FirstCo VMB series Ducted Hydronic Air Handlers with Variable Speed DC Fans combined with chilled water from the on site Ice-enhanced, Air-cooled LAUNDRY / GYM 2 FirstCo 12VMB Ducted Hydronic Air Handler $1,846.80 Peak Heating 1.7 kBTU/ft 2yr * 6,239.1 ft 2 = 10,606.47 Peak Cooling 6.1 kBTU/ft 2yr * 6,239.1 ft 2 = 38,058.51 6,239.1 ft 2/35 Peak=Heating 3.8kBTU/ft 2yr * 5,413.9ft 2 = 20,572.82 btu Peak Cooling 6.4 kBTU/ft 2yr * 5413.9ft 2 = 34,648.96 btu Ventacity ERV VS3000 RT Series Ventacity ERV VS3000 RT Series CFM based on occupancy ASHRAE: 20 CFM per person IBC: Occupancy Load Factor 5,413.9/50=108.350net people 108.3*20= 2,166CFM 3,000 CFM Provided ASHRAE: 10 CFM per person IBC: Occupancy Load Factor 35net 6,239.1/35=178.26 people 178.26*10= 1,782.6CFM 3,000 CFM Provided Day Care 1 FirstCo 12VMB Ducted Hydronic Air Handler $1,846.80
The VMB series by FirstCo is uses DC-in verter variable speed fan motors High E iciency - At full load conditions the VMB motor is 20% more e icient than an induction motor and at constant fan speed it consumes only 60-80 watts of power compared to 400 watts for a standard induction motor. Ventilation Flow – Max 1,020 CFM, Typical 180-3,000 CFM RA Filter - MERV 8 Voltage - 240 -480 VAC Heat Recovery- Sensible – 87%, Latent –82%, Total – 85% Temapture Range -22° F to 140° F Humidity Inside- Max 90% RH Operation Modes: CAV, DCV, VAV, BMS, Economizer
RETURNSUPPLY 06.13 SUNBLOCK Mixed Use Multifamily | The Loop | UACOMMERCIAL HVAC By running supply ducts through book selves along the perimeter, ducts are easy to access and service or change, allowing for adaptive reuse. Return ducts are added in line with the skylight to take advantage of natural convection loops. A dry bent plywood drop ceiling encourages convention in the opposite plain. Return Return Convection Loop Plywood Dropped Ceiling Supply Peak Heating 4 kBTU/ft 2yr * Peak Cooling 6.7 kBTU/ft 2yr * 2 FirstCo 16VMB Ducted Hydronic Air Handler $3,693.6 Having two units allows us to use only 1 in the winter. Ventacity ERV VS500 RT ASHRAE: 5 CFM per person IBC: Occupancy Load Factor 50net in Study 100gross in (1,141.06/50)=22.88stackspeople + (6,419.80/100) LIBRARY
Return
06.14 SUNBLOCK Mixed Use Multifamily | The Loop | UACOMMERCIAL HVAC
convection
DuctOFFICEPlacement Strategies Convectio n Return Return Supply Peak Heating 3.87 kBTU/ft 2yr * 9,207ft 2 Peak Cooling 6.74 kBTU/ft 2yr * FirstCo 16VMB Ducted Hydronic Air Handler Ventacity$2,400 ERV VS1000 RT Series ASHRAE: 5 CFM per person IBC: Occupancy Load Factor 50net (5,009/50)=100.18 people 100.18*5= 500.9 CFM 1000 CFM Provided RETURNSUPPLY
The o ice/maker space divides its program by raising individual workspaces up onto a platform, keeping the center open. This platform made from timber can be dismantled, allowing for adaptive reuse and easy access to ducts. Supply ducts run under the platform, delivering cold air low and allowing natural convection to mix the air. ducts are added in line with the skylight, taking advantage of natural loops.
06.15 SUNBLOCK Mixed Use Multifamily | The Loop | UAPLUMBING
06.16 SUNBLOCK Mixed Use Multifamily | The Loop | UAWATER USE Average water use for a bathroom sink = 11 11gal/person/daygalx293people = 3223 gal/day Occupancy Retrofit: 96 New building: 197 Total: 293 Average water use per shower = 17.2 17.2gal/persongalx293 people = 5,039.6 gal/day Average flow rate of a kitchen faucet 2.2 averagegal/min use 20 min/day x 108 kitchen sinks = 92,752 BLACKWATERGREYWATERgal/day Average dishwasher uses 4 gal/cycle 1 cycle/day x 89 units 356 gal/day Average toilet use = 18.8 gal/person/day 18.8 gal x 293 = 5,508 TOTALgal/day:106,878.6 GAL/DAY 39,010,689 GAL/YEAR
06.17 WATER COLLECTION
SUNBLOCK Mixed Use Multifamily | The Loop | UA COMFORT & ENVIRONMENTAL QUALITY 07.1 THERMAL COMFORT Solar Powered Ride Share Rain Water Collection Solar Chimney Native Bioswale Natural Light and VentilationBike path ventilationNaturalSupply/livingbedroomsroom Daylight Exhaust/kitchenbathroom Denimperformsinsulationwellacoustically VOC-freematerialsbuilding
| The Loop | UANATURAL VENTILATION
CHIMNEYS
SUNBLOCK Mixed Use Multifamily
Single-loaded Double-loaded
SOLAR
07.2
CoolVent was used as an iterative testing tool in order to find the form and opening sizes for The Loop’s two di erent kinds of solar chimneys that best took advantage of natural ventilation throughout the year.
The single-loaded solar chimneys consist of a 5’x3.5’ chimney extending 8 feet above the roof line. Air flow is maximized when 5 square foot openings are added to the north and south. Thoughtful unit layout and vents in each bedroom ensure that air flows through the entire unit. With these chimneys, units are thermally comfort able up to 26.8% of the year with natural ventilation alone.
The double-loaded solar chimneys consist of a 5’x25’ chimney extending 8 feet above the roof line. Air flow is maximized when 8 square foot openings are added to the north and south. Two vents along with east to west orientation ensure that air flows through the entire unit. With these chimneys, units are thermally comfortable up to 25.5% of the year with natural ventilation alone.
07.3 SUNBLOCK Mixed Use Multifamily | The Loop | UANATURAL VENTILATION LIBRARY
It’s a beautiful day out, open your windows during the day and keep an eye on PM levels in the Spring. 5 minIN THE LOOP
SUNBLOCK Mixed Use Multifamily | The Loop | UA OPERATIONS January 4 48* Fahrenheit 6% Relative humidity 7.5 MPH winds 20* Daily temp fluctuation 10 Hours of daylight March 8 74* Fahrenheit 0% Relative humidity 10 MPH winds 30* Daily temp fluctuation 12 Hours of daylight June 28 102* Fahrenheit 6% Relative humidity 7.5 MPH winds 30* Daily temp fluctuation 14 Hours of daylight August 4 95* 13.520*521%FahrenheitRelativehumidityMPHwindsDailytempfluctuationHoursofdaylight DATE CLIMATE COMFORT TIPS COInside7213%84Outside13%2
A4 M8 J28 J4 IN THE LOOP is a phone application that all residents of The Loop have access to. One of its features is connecting to the TON-0028C - TVOC, a small wall-mounted monitor that gives residents access to detailed information about their indoor air quality. This not only holds The Loop to a higher standard of quality but empowers residents by keeping them informed. A system of solar chimneys with natural ventilation that can be operated by hand is a big part of the way The Loop works. In order for it to be successful in replacing means of cooling that involve electricity use, residents need to know when to use it. When appropriate, In The Loop will send push notifications to users with suggestions of how to best take advantage of natural ventilation.
Brr! Open curtains on your south-fac ing windows to take advantage of the sun’s heat. 5 minIN THE LOOP
IN THE LOOP
Sample days
OXYGEN VOC PM IN THE LOOP Look’s like your carbon dioxide levels are high, consider opening your windows to improve circulation. 5 min
Open your windows at night to encourage night flush cooling and reduce your energy use. 5 minIN THE LOOP
TON-0028C - TVOC is a cordless, Wifi enabled indoor air quality monitor that tracks temperature, humidity, particles (PM 2.5, PM10), VOC, and carbon dioxide levels. A green, yellow, or red light ring in the center indicates overall air quality.
Close curtains on your south facing windows to avoid solar heat gain.5 minIN THE LOOP
Your plug loads are making up 18% of your monthly energy use. Remember to unplug electronics when not in use.5min
In a study conducted by Columbia University for the US Department of Energy, 56 apartments were metered to gather data on residential energy use. Electronics that are always plugged in, which expend electricity even when they are not in use were called “always-on” loads. Another name for them is often “phantom loads”. The study concluded that these loads on average account for 22% of the home’s total energy use (below). These are largely avoidable by taking the right precautions, like unplug ging electronics when they are not in use. This means that the potential for energy savings in the average home is high. They also found that of the metered homes, the ones that received regular feedback on their consumption had a 5-10% reduction in energy use, proving that equip ping people with the right information and tools is an e ective way to save energy.
Mixed Use Multifamily Loop
| UA
Another way that In The Loop helps empower its residents to live more sustainably is by keeping track of their monthly energy use. Having meters that are individual to each unit means that residents have access to day-to-day load schedules and their unit’s history of energy consumption. In The Loop stores data from the meter and organizes it in easily understood tables and graphs, then uses this information to send personalized suggestions to residents to help reduce their energy consumption and save money on utility bills. With the “How do you compare?” table, residents can see their energy use alongside the national average, as well as their own from this month last year. This encourages not only awareness, but growth.
| The
1,049 kBtu’s 980 kBtu’s 850 kBtu’s Your energy breakdown HeatingHotElectronicsACwater How do you compare? With permission, The Loop’s pattern-recognizing software identifies di erent kinds of loads throughout the day in order to give more detailed feedback. 9:00am 3:00pm 9:00pm kW FridgeKitchenDishwasheroutlet IN THE LOOP FIG 3
08.2 SUNBLOCK
IN THE LOOP
SUNBLOCK Mixed Use Multifamily The Loop UA
LIGHTING
08.3
|
Outdoor solar powered LED flood lights charge during the day and activate by motion sensor at night, turning back o after 30 LUMS:seconds.400 lm Wattage: 1.3 watts Voltage: 3.7 volts Uses 97% less energy
LED light bulbs that turn o in light greater than 30 Lux. LUMS: 600 lm Wattage: 9 watts Voltage: 120 volts Uses 80% less energy Traditional halogen light LUMS:bulb 600 lm Wattage: 43 watts Voltage: 120 volts
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08.4 SUNBLOCK Mixed Use Multifamily | The Loop | UAAPPLIANCES ANNUAL ENERGY USE LOCATION AVAILABILITY REFRIGERATOR GTE18GTH****GE $605.00 - $812.00 Best Buy - PARK PLACE 5870 E Broadway Blvd Tucson, AZ 85711-3920 (520) 745-308 358 (kWh/yr) APPLIANCES MODEL EQUIPMENT IMAGE PRICE Best Buy - PARK PLACE 5870 E Broadway Blvd Tucson, AZ 85711-3920 (520) 745-308 ELECTRIC RANGE SINGLE OVEN NE59M4310SSSamsung $500-$630 Best Buy - Delivery Only DISHWASHER DW80R2031**Samsung $380-$430 255(kWh/yr) WATER USE: 3.5(gallons/cycle) Best Buy - Delivery Only WASHER WM3500C*LG $549.00 - $751.10 85 (kWh/yr) ANNUAL WATER USE: 3927 (gallons/yr)IMEF:2.8IWF:3.2 Sears - PARK MALL Store No. - 0001338 5950 E BROADWAY BLVD TUCSON, AZ 85711 (520) 747-6000 MICROWAVE ME16K3000ASSamsung $180-$220 Sun Lighting 4545 E. Broadway Blvd Tucson, AZ, (520)322-430385711 DRYER DV48J770*E*Samsung $401.10 607 (kWh/yr) 6025 E Broadway Blvd Tucson, AZ 85711-4004 (520) 745-0209 STANDARD FAN WITH LIGHT KIT Monte 5VMR84***DCarlo $194 Ceiling Fan TotalTotal(CFM/W):431.0EfficiencyLightOutput(lumens):1600LightingInputPower(Watts):20.0 LED LIGHT GE61962Lighting $2.97 - $6.48 Brightness (lumens):800 Wattage Equivalency (watts):60 Efficacy (lumens/watt):88.9 Walmart-In Store Only
This tax is paid by residents who make 100% of the AMI or greater and business owners occupying retail space. It goes back to The Loop, then to community outreach.
DECISIONRESIDENTSMAKING
SALT Retail spaces are occupied by business owners who receive preferred shares to the corporation. These shares come with certain restrictions to give The Loop a say in what businesses operate there.
This fee can be adjusted to mirror the changing prices of goods and services. It ensures limited liability on residents to maintenance their units and public spaces. For residents, this is rent.
STOCK BUY-IN EmployeesInvolvementCommunity
A board of o icials elected by -and consisting of- all four groups of owners decides where money is allocated by voting. They serve the residents and immediate community.
Employee market rate6(Retrofit)units A ordable housing (New Build) 11 units A ordable(Retrofit)housing25units Market rate (New Build) 45 units
THE LOOP OWNERS
Residents receive common shares, one for each room in the unit they occupy, which gives them rights to the unit. These can be bought and sold within a fixed price rage based on local AMI.
BUSINESS OWNERS
SUNBLOCK Mixed Use Multifamily | The Loop | UA FEASIBILITY & AFFORDABILITY 09.1 OWNERSHIP
MAINTENANCE Similar to a deposit, a fee is paid upon move-in which buys stocks that allow the owner to occupy a designated unit in the building. These stocks are sold when the owner decides to move out.
Southern Arizona Land Trust MEMBERSHIP FEE
The Loop is a Co-op housing corporation owned by its stockholders. Upon moving in, residents pay a onetime deposit that buys them stocks that can be sold if they decide to move out. Since The Loop is a limited Equity Co-op, shares can be sold to the next resident within an adaptable price range based on local average median income (AMI). This discourages over-inflated rent prices while still giving residents the chance to profit from their unit. Business owners occupying The Loop’s commercial spaces and all employees also receive shares. Owning shares in the company means that residents own what is by law considered personal property, allowing them to take advantage of taxes and credit boosts that renters do not normally receive. The property is owned by Southern Arizona Land Trust (SALT), a local non-profit affordable housing corporation. Decisions are made on behalf of The Loop by members of SALT as well as a board of directors elected by all four groups of shareholders. Monthly payments consist of a maintenance fee, and in some cases a membership fee. Business owners and residents who make at least 100% AMI pay a membership fee that goes into a rent reduction program for qualifying low-income residents whose yearly income is 20-60-% AMI. The Retrofit is dedicated 75% below market rate and 25% to employees, while the New Build is required to price at least 20% of its units below market rate.
I live with my wife and son and make $23,000 a year, or 40% of Tucson’s AMI. Thanks to my community, I am a part of The Loop’s rent reduction program and my rent is only $800 a month. REDUCED RATE
fee
MARKET RATE 16001400120010008006004002000 20% AMI 30% AMI 40% AMI 50% AMI 60% AMI 100% AMI ($)PriceMonthly Percent of AMI (Resident's Income) Affordable Housing Rent Limits in Tucson, AZ One Bedroom Two Bedroom Three Bedroom Membership fee ��������� ������������������������������������������������������� ����������������������� ��������������������������������� ������ ������ ������ ������ ������ ������ ������ ������� � ������ ������ ����� ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ �� ������ ������ ������ ������ ������ ������ ������ ������ �� ������ ������ ������ ������ ������ ������ ������ ������ �� ������ ������ ������ ������ ������ ������ ������ ������� ��������������������� ��������������������������������� �������� �������� ������ ������ ������ ������ ������ ������ ������ ������� ������� ���� ��� ���� ���� ���� ���� ��������� ������������������������������������������������������� ����������������������� ��������������������������������� ������ ������ ������ ������ ������ ������ ������ ������� � ������ ������ ����� ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ � ������ ������ ������ ������ ������ ������ ������ ������ �� ������ ������ ������ ������ ������ ������ ������ ������ �� ������ ������ ������ ������ ������ ������ ������ ������ �� ������ ������ ������ ������ ������ ������ ������ ������� ��������������������� ��������������������������������� �������� �������� ������ ������ ������ ������ ������ ������ ������ ������� ������� ���� ��� ���� ���� ���� ���� ��������� ������������������������������������������������������� �������������������������������� ���������� ������� ������� ����� �������� ������ �� ����� ������� ���� ������ ���� ���� ���������� ��������� ����� �� ������ ���� ������ ��� ������� �� ��� ���� ����������� ����� �� ��� ������� � ������� � ������ � ������� � � � ������ ��� ������� �������� ��� ������������ ������ ������ ������� ������������������������������������������������������������������������������������������������������������� ������������������������������������������������������ ������������� ��������������������������������������� ����������������� ��������������������������������������������� ������������ ��������������������� ������������������ ���� ��� ��������� ������ ������������� �������� ��� � ������ ������� ������� ������� ������� � ������ ������� ������� ������� ������� � ������ ������� ������� ������� ������� � ������ ������� ������� ������� ������� � ������ ��� ��� ��� ��� ��� ��� ��� ��� � ������ ������� ������� ������� ������� � ������ ������� ������� ������� ������� � ������ ������� ������� ������� ������� � ������ ��� ��� ��� ��� ��� ��� ��� ��� �� ������ ������� ��� ��� ������� ������� �� ������ ������� ��� ��� ������� ������� �� ������ ������� ��� ��� ������� ������� $125$75ElectricityGas Tucson The Loop $200 Monthly average $100$0ElectricityGas $100 Monthly average SunBlock at The Loop Subscription model: AC, Heat, Hot Water Twice-annual&servicessystems 09.2 SUNBLOCK Mixed Use Multifamily | The Loop | UARENT
I live alone and make $56,000 a year, over 100% AMI. I own stock in The Loop so I want to see it succeed. I am happy to pay a monthly membership that benefits myself and others.
Government Property Lease Excise Tax (GPLET) – The State of Arizona initiated the GPLET program to stimulate development in certain targeted areas. In this program, the land and/ or improvements are conveyed to a government entity and leased back for private use for a nominal fee. The property tax is then replaced by an excise tax for twenty-five years, eight years of which can be abated by the land/building operator, providing savings in operating costs. The Tucson Mural Program funding for murals that celebrate Tucsons diversity. The program encourages local artists from diverse backgrounds and experiences to apply and offer new ideas and designs for murals.
Building Material Cost Index 2020 Median Income Grants and Fee Waivers Average Multifamily Construction Cost per ftsq
City of Tucson Impact Fee Waiver
The City of Tucson will assist in the mitigation of development costs for qualifying affordable housing projects through the elimination of impact fees. This will save $4,025 per unit, for a total of $358,225 in the form of equity funding, as per contest Pimaspecifications.CountyHOME Fund : Arizona’s Pima County is apportioned funds to provide gap financing of up to 2% for qualifying affordable housing projects within their jurisdiction. Community Development Block Grant (CDBG) City of Tucson funds to provide funding for qualifying affordable housing projects within their jurisdiction.
09.3 SUNBLOCK Mixed Use Multifamily | The Loop | UACONSTRUCTION COST
09.4 SUNBLOCK Mixed Use Multifamily | The Loop | UACOST BREAKDOWN
SUNBLOCK
The Loop is dedicated to strengthening our community through economic and climate resilience. For this reason, The Loop took great care in sourcing local materials. To reduce our carbon footprint and strengthen our local economy, all of of our major building components are manufactured and distributed in the United States.
Katerra: CLT & GluLam
Formaldehyde free Manufactured and distributed in Washington No Finishing Materials Necessary. CLT reduces construction time and simplifies the construction process
living: limited VOC’s and formaldehyde free Encourage a circular economy: Manufactured and distributed in the US Reduce carbon footprint: Wood construction wherever possible, including exposed wood interiors. Exterior walkways utilize source recycled steel, the Arizona sun is harsh on wood and over time they will need to be replaced less often than a wood alternative.
09.5
Mixed Use MultifamilySOURCING
| The Loop | UA
Infinite R Phase Change Material : Thermal mass 100% natural & non toxic Manufactured and distributed in Nevada Uses considerably less material than traditional thermal mass Bonded Logic: Insulation No VOC’s Manufactured and distributed in Arizona Made from 80% Recycled Material from donation centers such as Goodwill, 100% Recyclable
Materials for The Loop had to meet three Encouragestandards:healthy
Columbia Forest Purebond : Plywood Formaldehyde Free Manufactured in North Carolina, distributed in WoodArizonaSourced from Northern USA wood basket
Certificate criteria: PHIUS+ 2018
Cooling demand sensible: latent: specific: target: total: 10.75 kBtu/ft²yr 0.01 kBtu/ft²yr 10.76 kBtu/ft²yr 25.6 kBtu/ft²yr 987,486.62 kBtu/yr 0 3 6 9 12 15 18 21 24 27
Cooling demand sensible: latent: specific: target: total: 9.85 kBtu/ft²yr 0.01 kBtu/ft²yr 9.86 kBtu/ft²yr 25.6 kBtu/ft²yr 904,465.76 kBtu/yr 6 9
WUFI®Passive V.3.2.0.1: University of Arizona/Solar Decathlon Design Challenge Page 1 BUILDING INFORMATION Category: Status: Building type: Year of construction: Units: Number of occupants: Occupant density: Residential In planning Mixed new construction/retrofit 1 236 (Design) 388.9 ft²/Person
PASSIVEHOUSE
WUFI®Passive V.3.2.0.1: University of Arizona/Solar Decathlon Design Challenge Page 1
Heating load specific: target: total: 3.15 Btu/hr ft² 4.4 Btu/hr ft² 289,457.1 Btu/hr 2 Cooling load specific: target: total: 3.92 Btu/hr ft² 7.3 Btu/hr ft² 360,024.46 Btu/hr
SUNBLOCK Mixed Use Multifamily | The Loop | UA RESILIENCE 10.1 RESILIENCE
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Boundary conditions Climate: Internal heat gains: Interior temperature: Overheat temperature: AZ PHOENIX SKY HARBOR INTL AP (Monthly) 0.7 Btu/hr ft² 68 °F 77 °F Building geometry Enclosed volume: Net-volume: Total area envelope: Area/Volume Ratio: Floor area: Envelope area/iCFA: 2,047,363 ft³ 1,804,432.5 ft³ 307,225.2 ft² 0.2 1/ft 91,781.1 ft² 3.347 REQUIREMENTS
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Withstanding Time The Loop is prepared for e icient day-to-day operation long into the future. If a building is to last, it needs to be ready for change. Global warming is a future that we must all prepare for. Based on WUFI results from an EPW file that reflects Tucson’s projected climate, The Loop will operate at net zero energy even in the year 2080.
Cooling load specific: target: total: 4.3 Btu/hr ft² 7.3 Btu/hr ft² 394,681.14 Btu/hr 0 1 2 3 4 5 6
https://fitzlab.shinyapps.io/cityapp/
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BUILDING INFORMATION Category: Status: Building type: Year of construction: Units: Number of occupants: Occupant density: Residential In planning Mixed - new construction/retrofit 1 299 (Design) 307 ft²/Person Boundary conditions Climate: Internal heat gains: Interior temperature: Overheat temperature: AZ PHOENIX SKY HARBOR INTL AP (Monthly) 0.7 Btu/hr ft² 68 °F 77 °F Building geometry Enclosed volume: Net-volume: Total area envelope: Area/Volume Ratio: Floor area: Envelope area/iCFA: 2,047,363 ft³ 1,818,250.1 ft³ 307,225.2 ft² 0.2 1/ft 91,781.1 ft² 3.347 PASSIVEHOUSE REQUIREMENTS
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Heating demand specific: target: total: 2.84 kBtu/ft²yr 2.7 kBtu/ft²yr 260,473.29 kBtu/yr 0 1 2 3 4 5 6 7 8 9
Heating load specific: target: total: 3.47 Btu/hr ft² 4.4 Btu/hr ft² 318,275.68 Btu/hr 0 1 2 3 4 5 6
Certificate criteria: PHIUS+ 2018 Heating demand specific: target: total: 2.51 kBtu/ft²yr 2.7 kBtu/ft²yr 230,740.84 kBtu/yr
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10.2 SUNBLOCK Mixed Use Multifamily | The Loop | UARESILIENCE
Emergencies Passive survivability refers to the amount of time a building can remain livable in the event of a blackout. Defined by the CIBSE, a space is livable until it surpasses 86 degrees fahrenheit. During the hottest week of the year, July 1-7, The Loop will remain livable for almost three days. Before retrofitting, the existing building would be unlivable by the end of the first day. With access to the In The Loop app, residents can quickly get in touch with o icials in the event of a medical emergency or gas leak. In the event of a prolonged black out, when individual units become uncomfortable, the Loops community spaces including the library can become temporary shelters cooled by the chiller plant run by on site solar.
º º º º Livable temperature limit POWER OUTAGE DISASTER EVENT
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Global Pandemic The Loop is an interconnected community with an organized board of directors, making it an excellent disaster response organism. In the event of a global pandemic, In The Loop allows for individuals to quarantine in their homes safely. Emergency communication can be reached through the app, as well as emergency data sharing that can keep o icials updated on the status of each unit and how the building is performing (1). Each unit is an airtight box with individual ERV’s (2) and all circulation is outside (3), which means no mixing air. In a gas crisis, The Loop’s commercial spaces and it’s surrounding bike routes keep residents connected to important resources (4). In the event of grid failure, The Loop can rely on solar panels for energy (5).
10.3 SUNBLOCK Mixed Use Multifamily | The Loop | UARESILIENCE
BEFORE BeforeAfter The Loop takes advantage of xeriscaping for a restorative, vernacular, and low-cost landscaping option to replace existing asphalt. The site is now able to absorb rainfall, filtering it through roots and soil before returning it to our falling water table. This is reversing Tucson’s habitual approach of allowing runo to overwhelm the streets and concrete lined channels, regularly resulting in flash floods. Desert
AFTER
10.4 SUNBLOCK Mixed Use Multifamily | The Loop | UA
xeriscaping
Perennial forb; Well-drained soils, canyons and roadsides Sandy washes, canyons, riparian lands Well-drained soils of fans and flats, by road sides and in sand Well-drained soils
BIOSWALES
SITE RESILIENCE
Long-lived perennial; Occurs in riparian floodplains; along washes, grasslands
PermeableMODERATELOW
AGRIVOLTAICS
Mid-story tree associated with wide variety of desert and riparian plants including desert honey suckle, desert lavender, and a wide variety of grasses and seeds. Attracts wildlife including birds, bighorn sheep, deer, antelope, coyote, rodents, 60 species of native bees and butterflies. Nesting site for native birds. The tree is completely edible, seeds are useful for flour.
Low point
CAM VioletPlants:Prickly Pear Opuntia Gosseliniana Arizona Barrel Cactus Ferocactus King Cup Cactus Echinocereus Boyce Thompson Hedgehog Echinocereus Boyce-thompsonii Creosote Larrea Tridentata
Pavers Native Plants Water Use Name and Habitat Characteristics
“Smells like rain”, unique composition of oils that are fragrant when humidity increases, causing the stomata to open. 22 species of bees, chuckwallas and jackrabbits feed o the flowers and leaves. Require minimal water and reduce CO2 due to their unque Crassulacean Acid Metabolism.
10.5 SUNBLOCK Mixed Use Multifamily | The Loop | UA
Velvet Mesquite Prosopis Velutina
Often found alongside desert washes with velvet mesquite, ironwood, paloverde, chuperosa, and desert willow. Purple flowers provide nectar and pollen, which is eaten by hummingbirds and bees. Leaves and twigs are food for bighorn sheep, cattle, and other mammals.
Often found near Velvet mesquite and a wide variety of grasses. Purple flowers provide nectar and pollen for insects and hummingbirds and reduce erosion and dust particles in the air by protecting the soil surface.
Beardtongue Penstemon Parryi Desert Honey-suckle Anisacanthus Thurberi
| UA
PV ARRAY SHADES CROPS AND BUS STOP SHADED CROPS US LESS WATEREVAPORATION COOLS PV, IMPROVES EFFICIENCY RAINWATER COLLECTION
Sediment is captured as water slows
Desert lavender is often found alongside velvet mesquite, providing a plesent view and smell to residents Clay particals in soils absorb pollutants such as metals, phosphorus and hydrocarbons
The Loop’s evaporative cooling mechanisms are inspired by bioswells. They occur at the bottom of slopes where the land has flattened, allowing water and sediment to build up and support plant life. These bioswells shade and evaporate water, resulting in a cooled valley. They create a miniature ecosystem which is home to a wide variety of plants and animals.
Plants, moss and microbes use pollutants like nitrogen and phosphorus to grow Plant roots reduce the rate of erosion, break down rocks and Mesquite are nursery trees that support the growth of CAM plants, forbs and grasses
AGRIVOLTAICS: Located alongside The Loop’s bus stop are two sets of agrivoltaics. Installing a PV array above a garden creates a symbiotic relationship where plants and PV panels alike can benefit from shade and evaporative cooling. This cooled atmosphere creates a healthy space for residents to socialize, garden, and utilize public transportation.
BIOSWALES:
TO SUNBLOCK THERMAL STORAGE TANK
10.6
SUNBLOCK Mixed Use Multifamily Loop
SITE RESILIENCE
| The
Increasing access to resources such as fresh foods, transportation, daycare, library and o ice spaces
Empowering the individual: Setting up a Limited Equity Co-op enabling a larger range of AMI’s to have ownership over their community
Becoming Part of the Sun-block District Heating and Cooling System
Each super block has the ability to create their own version of the loop
Each new multifamily complex will supply energy to existing homes
By supplying energy through thermal storage produced by PV even at night, the life of the neighborhood houses are prolonged
The Loop’s methodology can be applied to any lot by: Influence in Community D
emonstratePositive change andIncrease in Ac t i o n SunBlock Co- op is replicated Empowering the Individual Tucson sees this positive change and replicates it, demonstrating to other cities with similar climates that this system is worth investing in.
SUNBLOCK Mixed Use Multifamily | The Loop | UA INNOVATION 11.1 OUR INNOVATION
The Loop’s innovation began with shifting from the perspective of an individual existing autonomously to that of an individual existing as a component in a system. Embracing systems thinking lead us to develop unique template that can be applied to the many over sized commercial lots and super blocks typical of Tucson or other cities with similar climates.
Co-op structure and reduced utility cost through Sunblock allows for low-income earners to have ownership over their home.Co-op ownership structure allows for quick local decision making. Ownership allows for residents to vote, encouraging them to be involved
Eliminate the need for the grid to power conditioning loads CO2 reduced by reducing the amount of new construction and material used for retrofit Engaging in Sustainable building practices: PHIUS +2018 standard or better Locally sourced material Life cycle analysis Adaptive Reuse of the typical strip mall creates a unique identity
Providing information through the In The Loop app creating informed decisions Building with healthy materials, natural daylight and air quality sensors
Core benefits plus energy consumption patterns recorded by kW per month to compare each year that are organized into four general groups, AC, electronics, hot water, and heating.
COMMUNITY
Technological advancements have allowed us to achieve incredible goals, and it is time to include everyone in on them. In The Loop allows residents to create their own unique Energy Profiles, where they can access data recorded by their indoor quality monitors and electricity meters. Energy profiles are customizable, allowing users to specify privacy and data sharing settings. By recording data, residents can keep themselves personally accountable for their lifestyle habits, but by sharing their data, they can help make advancements in the world of sustainable built environments. Residents are encouraged to share their information and become an interconnected part of The Loop community, but it will always remain an option.
COLLECT SHARE PREDICT GROW
11.2 SUNBLOCK Mixed Use Multifamily | The Loop | UA IN THE LOOP
General benefits plus In The Loop records detailed load schedules and gives specific feedback on where energy is being used in your home. In The Loop will adapt to your lifestyle to suggest sustainable habits that are best suited for you. Residents are rewarded for taking part in public data collecting initiatives, which In The Loop can help them get connected with. Residents with advanced energy profiles receive a 3% monthly rent reduction.
GENERAL ENERGY PROFILE
ACCOUNTABILITYANDADVOCACYENVIRONMENTALSTEWARDSHIPMAKECONNECTIONS
ENERGY PROFILES
ADVANCED ENERGY PROFILE
CORE ENERGY PROFILE Residents have access to communication with the board of directors and other residents, along with news and events from The Loop. Live feedback on indoor air quality and monthly utility statements. Instructions for natural ventilation systems but no stored data or applied algorithms.
Hello Claudia, welcome to your new home at The Loop. 5 min