Affordable passive solar homes: low-cost, compact designs

active solar affordable architectural attic avoid bedroom building building envelope ceiling clerestory color compact homes concrete construction convective cost cross ventilation daylighting destratification dining direct gain direct solar gains domestic hot water Double-Envelope drywall earth berms earth-sheltered economic effective eutectic eutectic salts formaldehyde furniture glass glazing heat loss home designs increase inductive ventilation interior space kitchen living area living room living spaces living unit lnsulation located louvered masonry materials ment minimal movable insulation needed optimize outdoor air overhangs patio plans and designs plenum pollution problem R-value radon reduce reflective roof shading side-sliding solar access solar collectors solar energy solar gains solar heating solar radiation solar system south-facing Square Feet Square Meters stacked stairway summer sunspace superinsulated surface temperature thermal bridging thermal mass floor thermal storage thermosiphon tion trombe wall upper Ventilating and Cooling vents wind winter zoning