We will be presenting the design development decisions for the Full Revolution Farm a Positive Net Energy Passive House Project the First Commercial Hospitality Passive House Project. Follow the design development into construction as we move forward with this project over the next 6 months.
Project; Full Revolution Farm Initial Design Considerations Part 1
Project Intent; Passive House, Design Build, self sufficient Bed and Breakfast
Project Team; Eco Smart Building LLC – Land Plan, Programming, Architecture, MEP,
PHI Certification, Energy Star Version 3 Certification, and submission to
To be positive net energy in the best case and net zero in the worse case; Passive House building design withthePassive House International asthecertification body, additional design requirements are Energy Star Version 3 and Building America Version 2.
Renewable Energy Options Considered for the Project;
On site Renewable Energy considerations fortheproject are as follows; passive solar, solarthermal, photovoltaic, small wind/community wind, ground coupled geothermal system, air to air, water to water, and air to water heat pump, on site biogas generation, andthermally active transfer.
Iowa Geothermal best management practices http://www.iowadnr.gov/epc/09may/12.pdf
Iowawell water and geothermal drilling http://www.iowadnr.gov/water/npdes/gp6.html
On site biogas generation information, can be found in the book Ultimate Fire Digester
Programming land plan;
There are currently two lots that have naturally occurring high spots which arethebuildable spaces forthelots. The site has a natural flow for other storm water and I would suggest that it be maintained or enhanced inthedevelopment ofthesuite.
Existing trees onthesite are alongthenaturally occurring swale onthenorth end ofthesite and an old fence row. The intent is to incorporate as many oftheexisting features intothenew site plan.
Utility connections and easements;
There is currently no natural gas, electric or low voltage service totheproposed building sites. Other buildings inthesubdivision are using LP for natural gas,theelectric, cable, and phone provider needs to be contacted for connection location, cost and timing forthese services. All electric, cable and phone are trenched intheother subdivisions.
Currentlythecity is installing a municipal water and waste water system tothesubdivision. There needs to be follow up withthebuilding and or engineering departments and or streets and sanitation onthesite requirements for connection location, cost and timing.
Utility and municipal connections should be coordinated withthedevelopment ofthedrive easement intothetwo sites.
Storm water management;
Site Storm Water Management
There is a natural bio-swale onthenorth side ofthelots that runs northwest to Southeast, site drainage should be maintained or enhanced to direct water totheexisting natural swale, this could includetheuse of culverts undertheproposed drive to work withtheexisting sit drainage. At this time it is unknown iftheexist swale has flowing water.
Drive, parking, turnarounds traffic surfaces are Asphalt Paving -swale to catchment along all hardscape a final collection point will require a Perk test to determine permeability additional information can be found at http://www.extension.umn.edu/distribution/naturalresources/DD0583.html
Plantings heights to be reviewed withtheState and Municipal code limits. Native plants and no-mow space is preferred, trees are a preferred planting material for all hardscape to limit heat island.
Roof Drainage – Main House and attached Garage direct storm water to a gray water Cistern with an over flow leach field TBD. Out buildings and additional hardscape storm and blackwater drainage TBD depending on building location, municipal, and county code requirements.
Black and Gray water systems;
Black water – Clivius Multrum is thepreferred treatment system for thesite, themanufacture also has a gray water system. Additional information http://www.clivusmultrum.com/what-we-do.php I have requestedthe design requirements for black and gray water systems.
Secondary plan – Ifthelocal municipality will not approvetheClivius Multrum system, we should review septic system requirements for both gray and black water systems. My concern is that fromthesoils report thattheclay soil is two dense for proper drainage andthefield will need to be redesigned increasing cost. Exploring on site biological treatment requirements and wet land generation for treatment can be accomplished in heavy clay soils.
We will have additional information fromthelocal municipality on timing, cost, and building code requirements where we can do a cost benefit analysis.
Current Buildings/structures on the site;
House/B&B attached 3 1/2 car garage
Household trash storage and recycling
Out Buildings maximum combined sq. ft. is 3,000 per building code requirements
Large storage/animal barn, pole barn
Dairy/cow shelter – house, etc
Equipment storage – small tractor
Green house – attached 15’ x 20’
Mobile chicken coops & yard 6’ x 12’
Large animal pen/paddock
Orchard fenced in
Compost bin location – close to animal housing, 3 bin enclosed size to be determined depending onthetype of animals on site as well as garden location
Additional information http://ag.arizona.edu/animalwaste/awcompost.html
Composting yard waste http://www.ext.colostate.edu/pubs/garden/07212.html
Composting requirements http://cwmi.css.cornell.edu/composting.htm
Home composting http://web.extension.illinois.edu/homecompost/building.html
State ofIowaPlant Program