• Compressive strength at 28 days:
• Footings - 3000 psi
• Interior Slab on Grade - 3500 psi
• Exterior Slabs and walls - 4000 psi
• Concrete finish:
• Avoid acid
• Iron copper sulphate

04-21 Clay Unit Masonry

• Site-made compressed earth block
• Flooring:
• 10" x 14" x 2.5" compressed earth block
• Walls:
• 7" x 14" x 4" compressed earth block

04-22-10 Autoclaved Aerated Concrete

• AAC Foundation Block (minimum order is __)
• Type:  AAC-2
• Density:  30 lb/cu ft
• Minimum Compressive Strength (ASTM C 1386): 290 psi
• Moisture content:  8%
• R value:  R-1 per inch
• Size:  typically 24" long x 12" wide x 8" high, double cored
• Mortar:  supplied by block manufacturer

• Siloxane Sealants (allow vapor transmission, but stops water absorbsion)

06-16 Roof Sheathing

• Thickness = 5/8"
• Vapor Permeance > 15
• R value > 1.3

06-16 Subflooring

• Thickness:  1-1/8"

06-17 Shop-Fabricated Structural Wood

• Open web floor trusses:
• Depth for first floor:  16"
• Depth for loft:  14 or 16"
• LVLs:
• TBD
• TJI Rafters:
• Depth:  14"

06-41 Architectural Casework

• Solid poplar or pine
• No laminates or particle board
• Kitchen Cabinets
• Bathroom Vanities
• Utility Room Cabinets

06-43 Interior Wood Stairs and Railings

• Treads:
• Oak or other hardwood
• Risers:
• Railings:

06-44 Wood - Pressure Treated Lumber Alternatives

• Locust
• Mountain Works

• Foundation Damproofing
• Sill Gasket

07-13 Sheet Waterproofing

07-21 Insulation

• Below slab
• 1st choice: Foamglas (rare in the US)
• 2nd choice: Closed cell polyurethane
• Density: 2 lb/cu ft
• Minimum R value = 6.5 per inch
• Minimum compressive strength - 28 psi.
• Permeability (ASTM E 96/E96M): 2 perms
• 3rd choice: Extruded Polystyrene
• 4th choice: Expanded Polystyrene
• Foundation Walls
• 1st choice: Closed cell polyurethane
• 2nd choice: Extruded Polystyrene
• 3rd choice: Expanded Polystyrene
• Above Grade Walls
• Tradical Hemcrete
• 1st choice: Roof (TJI rafters)
• Dense Packed Cellulose
• Minimum density: 4 lb/cu ft
• Minimum R value: 4/inch
• Mineral Wool
• Option: Roof (SIPs with timber rafters)
• Ecopanels SIPs
• Thermal Breaks at Balconies
• Greenhouse/Shed Roof
• Greensulate Mycelium SIPs
• Greenhouse/Shed Walls
• Unprocessed sheep's wool

• 10 mil minimum

07-27 Roof Underlayment

• Main Roof
• Front Porch Living Roof
• Back Porch and Greenhouse/Shed

07-30 Roofing

• Main Roof:
• Metal
• Galvalume standing seam
• Slate
• Front Porch Living Roof
• Back Porch and Greenhouse/Shed
• Corrogated sheet metal

07-62 Termite Barrier

• 1st choice: stainless steel at exterior with stainless steel at interior and adhesive membrane between
• 2nd choice: same with aluminum

07-71 Gutters

• 26 ga stainless steel 5" half round
• 26 ga galvanized 5" half round

• Front porch:
• Rain Chain
• Other roofs:
• 4" diameter stainless steel
• 4" diameter galvanized

• Solid pine prehung
• French doors:
• 24" wide = 10 lite
• 30" wide = 15 lite
• Pocket doors:
• TBD

08-11 Exterior Doors

• Prehung Fiberglass
• Multipoint latch
• Thermally broken sill
• Wood veneer if possible
• 8"x30" brass kickplate
• Air leakage = low as possible
• Entry Doors:
• Solid door minimum R value = 11
• Patio Doors:
• If multiple panels are scheduled, provide one swinging panel, one fixed.
• 18 lite panels (applied interior and exterior grilles)
• Glazing minimum SHGC = .5
• Glazing maximum u value = .17

08-50 Windows

• Minimum triple glazed, argon filled, low-e glazing with insulated fiberglass or thermally broken wood frames.
• Casement, awning or tilt-n-turn per schedule
• Divided lites (applied interior and exterior grilles)
• Minimum whole window SHGC = 0.5
• Minimum whole window R value = 7
• Air tightness (ASTM E 283) < .08 m3/h/m,
• minimum AAMA Grade = __
• minimum CSA Grade = A3
• Water tightness @ 700 Pa (ASTM E 547/331): 
• minimum AAMA Grade = DP 90
• minimum CSA Grade = B6
• Wind load resistance @ 5000 Pa (ASTM E 330): 
• minimum AAMA Grade = DP 65,
• minimum CSA Grade = C4

• Lime Plaster
• Earth Paint
• American Lime Technology (Mario)
• Earth Plaster
• Mud Straw Love

09-28 Cementitious Backerboard

• Thickness:  5/8"

09-29 Gyp Board

• Thickness = 5/8"
• Greenboard in wet areas
• Recycled content

09-30 Tile (level 1 bathroom and pantry)

• Walls:
• 4-1/4" x 4-1/4" ceramic travertine
• Floors:
• 12" x 12" ceramic

09-64 Wood Flooring

• Hardwood (bedroom and loft)
• Local (reclaimed?)
• Wood - Trim
• Poplar
• Mountain Works
• Wood Shelves
• Poplar
• Asheville Treecyclers
• Countertops
• Asheville Treecyclers vacuum kiln dried wood slabs
• Concrete

09-91 Paint and Wood Finish

• Walls:  Earth Paint Clear Skies
• Ceilings:  Earth Paint Clay Paint
• Concrete floor:  Earth Paint Biopoly NT
• Wood finish:  Earth Paint Rainforest

• Washing Machine
• Lowest electric and water use
• Dishwasher
• Lowest electric and water use
• Refrigerator
• Lowest electric use (no ice maker)
• Induction cooktop
• Gas range (second choice after induction/gas combo)
• Range hood

• Supply Piping:
• Polypropylene
• Copper
• PEX (last choice because home runs from each fixture negate hot water circulation pump)
• Waste and Vent Piping:
• Polypropylene
• ABS
• Cast Iron
• Toilet/Sink Combo
• Lavs
• Lav Faucets
• Wall mounted
• Bathtubs
• Shower heads
• Lowest flow
• Shower Shut-off Valve
• P-Traps
• Waste Water Heat Recovery - Horizontal
• Hot Water Circulation Pump
• Rainwater Storage Tanks 
• Rainwater Harvesting Filters and Pumps

• Pumps
• ERV
• ERV preconditioning coil pump package
• Dehumidifier
• Heated Towel Racks
• Heat Pumps
• Single Zone: 
• Two Zone:  
• Ceiling Fans
• Fireplace/Woodstove

• Lighting
• LED Undercounter Lights
• LED Downlights
• Building Monitoring

• PV Panels
• PV Inverter

• Stone
• Mulch
• Soil amendments
• Plants
• Useful Plants Nursery