Synopsis: shed workshop built to meet or exceed standards for residential housing, active solar design.
a) Needs removal of forms, cleanup of scrap concrete, releveling adjacent soil.
1. 14'10" length, 12'6" width and 9' height exterior walls.
2. Hardiepanel siding to match house.
3. Hardietrim or real wood trim on corners.
3. Hardietrim or real wood trim on corners.
4. 2x4 framing at 16" centers.
6. 6 foot wide coated steel double french doors with internal blinds, Energy Star, facing east (toward house). Lowes ReliaBilt #289766 ($698).
7. One 29x47 Fleetwood casement window, already purchased for delivery on August 12. Facing north at 5 feet (min) from front, 36 inch minimum height.
8. 5/12 slope roof with 2x6 (or 2x8) rafters on 16" centers and braces mounted 3" above sidewalls for 9'4" ceiling mount. (Finished ceiling intended to be between 9' 3" in main central region for acoustical optimization; rises 3" from 9' at sidewalls.) Acceptable alternate approach is to have 9'3" walls and flat ceiling. 9'2" is absolute minimum ceiling height (above finished floor) for good acoustics.
9. Eaves at 18" with HardieFascia boards with drip edge.
10. Continuous soffit vents, side vents above ceiling, and full length ridge vent.
11. 24ga galvalum steel roofing with white polymer factory coating.
12. Roofing rests on 5/8" OSB with radiant barrier facing down.
13. One 3" diameter stainless steel interior vent with 11" tube (already purchased) for battery hydrogen venting; mounted just below maximum ceiling height.
14. Lowe's Valspar Premium exterior paint (top rated consumer reports), tinted to match house.
15. 6' concrete ramp poured on compacted soil with 3" gravel base.
Interior (Phase II, may be done simultaneously or separately)
Interior (Phase II, may be done simultaneously or separately)
1. All walls and ceiling insulated with maximum sized fiberglass batts.
2. All 5/8 sheetrock:
a) 5/8" Fireguard (tm, available at Lowe's) sheetrock on side and back walls.
a) 5/8" Fireguard (tm, available at Lowe's) sheetrock on side and back walls.
b) 5/8" QuietRock EZ (SeriousMaterials) on ceiling and front wall. I figured 8 pieces leaves plenty of margin for both, available through Building Specialties in San Antonio, quoted $58.38 per piece.
3. Center ceiling fan and side outlets to be connected to off-grid solar system. Fan must have wireless remote control and exposed lamp(s). Exposed insulated metal conduit might be preferred for easy modification.
4. 4x12.5 foot loft at minimum height of 6', supported by 4" square metal beams.
5. Two rows 16" deep shelving on sides past loft at 6.5 foot and 7.75 foot.
6. Interior light beige paint tbd with brown trim marking for all studs.
7. Flooring options:
a) porcelain non-slip freeze resistant tile, Marazzi "Brazilian Slate"
b) polished stained and sealed concrete floor with anti-slip additive.
8. 40 inch wide workbench at north side underneath casement window. 35" height.
Off-grid solar power system (to be supplied/tested by homeowner, contractor needs only to install panel on roof and wire to inside and provide internal AC wiring, 12g, in exposed metal conduit).
1) One approximately 200W solar panel mounted on south side near roof ridge at roof slope (5/12), with adjacent mounting brackets for second panel.
2) Programmable charge controller
3) 100+ amp hour AGM sealed battery.
4) 2000W peak true sinewave inverter.
5) 0g or better wiring from battery to inverter 6 feet away along south side wall. Inverter rests near floor, battery elevated 2 feet in open top enclosure. Tie-in from inverter to ceiling fan and outlet at workbench on north side.
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