POWER SWITCH TRANSISTOR-The part responsible for switching off the primary circuit that causes high voltage induction in the secondary winding in an electronic ignition system. PRIMARY SPEED SENSOR-An engine speed sensor located inside the actuator housing on the back of the injection pump.
Costs for green roofs in the United States are estimated to average between $15 to $20 per square foot for all use types, i.e., high density residential, commercial, industrial etc.1 These costs include all aspects of green roof development, from the waterproofing membrane to soil substrate creation to planting.
Average Minimum Cost: $400 per square ($4.00 per square foot). Average Maximum Cost: $650 per square ($6.50 per square foot). Because it's a premium alternative and may require specialized tools, many home improvement experts recommend having a professional install standing seam metal roofing.