ARC-09 Meeting

*Priorities *

* -*** KEEP COST LOW***
* -On Campus
* -Small Foot prints
o Like Ikea
o 500 sq ft 1 bedroom
o 700 sq ft 2 bedroom
o 800 sq ft 3 bedroom
* Greenhouse -How much needed for growing

Dug's diagram
24X28 - 2 bedroom = 672 ft^2
4 foot greenhouse space=128 ft^2
Access by sliding doors into 4' greenhouse
Vertical wall VS. sloped greenhouse wall

1. Light in
2. Sealing
3. Heat Management
4. Storm resistance
5. Tendency to catch dirt, snow

-Moveable insulation on greenhouse

* Recycle water -How many sq ft
o Underfloor Tanks - under greenhouse
o Methane Tank 800 gallon methane digester - 100 cu ft =
4X4X8? - especially if heat storage 4 ft deep
o Fresh Water
o Greenhouse plants??
o Roughly 1500 gallons total system
* Thermal Plan
o High Passive House Standard
o Heat Storage
+ Underground wet sand - high performance
# Good Membrane
# Drain tile at bottom
# add water
# drain if it is too wet
# Area for root cellar
o Solar Capture
+ Solar Capture Area
# 4*28=128 sq ft on 60 degree front slope = 1/6
solar capture to floor space - more than arc-08
+ Solar Hot Water Panels
+ Hot Water Storage
* Air Handling
o

* Electrical Efficiency
o Solar PV?
o cook with methane
o PV&heat capture
o LED backup lighting
* Building Materials
o Foundation
+ Goes down 4 ft because of heat storage
+ ICFs or custom concrete forms
+ integrate water tanks under greenhouse
o Food Storage (root cellar)
+ near outside corner - or outside foot print
+ Need access from kitchen or pantry or garage
o Storm Shelter

So far: Lotsa' expense in the ground before any walls put up. How can
we do it cheaper?
Water bag under floor 1 foot deep = roughly 40 days of heat storage at
passive house
12 inches insulation underneath water bag
2 inches between bladder and house

Study for next time
Air handling
economical, trustworthy water tanks

What about making the ARC by scraping the ground flat and then building
up with foam, set in some water tanks, and then make a wood floor above it?
but, still buying tanks