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A Brief History ofMobile Home Construction
Rich CourtneyWeatherization Program Specialist
Early mobile home
“It takes a sense of humor”
Three Decker Heated Floor
1948 Liberty
“Comfort Conditioning”
1949
Prairie Schooner
Manufacture claims home is 10o cooler
Pulling a Prairie Schooner trailer saves between 10 to 25 gallons on long hops
“Fully
Insulated”
“Johns-Manville
Floor Insulation”
1952“Happy Home”
“Separate Shower & Toilet”
“Water Heater”
“Oil or Butane Heat Optional”
Mobile Home with a “Tip Out”
1975 Flamingo “Double Wide”
Manufactures Certificate
Pre 1976 Wall Stud size
Locate and inspect for wiring type, safety and power cable entrance
Water Heater Compartment
• See any problems?• Open controls• Exposed wiring• Flammable foam
insulation close to possible electrical hazards
• PVC discharge pipe• More?
General ConstructionFeatures• Roof Assembly with Ceiling• Walls, Fixtures, Appliances
and Wiring• Flooring w/Finished Floor
Covering• 2x6 Framing• Main Ductwork• Insulation• Bellyboard• Main I-beams/
Outriggers/Cross Supports• Axles/Hitch
• Illustration courtesy of John Krigger
Primary Window TypesA. JalousieB. Horizontal SliderC. AwningD. Vertical Slider
• Illustration courtesy of John Krigger
Single-Wide and Double-WideFeatures
• Details showing “tie-downs”
• Foundation Support Piers
• Illustration courtesy of John Krigger
• “Marriage Line”
Crossover Duct on a Double-wide
• A crossover duct connects two complete duct systems. Each supplying conditioned air to each side of the dwelling.
• Note “Marriage Line”
• Illustration courtesy of John Krigger
Floor joist configuration
• Longitudinal or lengthwise floor joists
• Perpendicular or Crosswise floor joists
• Illustration courtesy of John Krigger
Forced Air Furnace Systems
• Furnaces are typically “down flow” heating units. The furnace connects to the main trunk line of the duct system located in the floor.
• Illustration courtesy of John Krigger
Location of the main trunk line depends on the floor joist
configuration
• Illustration courtesy of John Krigger
Use the information to help direct Weatherization work
Relax at the end of the day after a job well done