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Lustron

(2009-12-08 22:34:19)
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Lustron

  Lustron

 

Detailed Description of Lustron System

Assembling a Lustron: From Factory Floor to Installing the Trellis by the Front Door

fact sheet distributed by the Lustron Corporation in 1950 provides a concise description of the house’s components and construction:

The skeleton of the house is made of steel framing, factory-welded into wall sections and roof trusses. Porcelain finish steel panels cover the roof, exterior and interior walls. Interlocking with each other, they are attached to the frame with concealed screws. Compressed between the panels is a permanent plastic sealing strip which forms a gasket and assures an air-tight moisture resistant enclosure. This all steel construction provides great durability and strength.

The straightforward description, however, belies the complexity behind the manufacture and erection of a Lustron house, which contains over 3,300 parts. Major components of the Lustron System include the interior and exteriorpanels, the roof and gutterswindows, and framing members.   These parts were manufactured at the Lustron factory in Columbus, Ohio.

The Lustron Factory

The 1 million-square-foot factory (about the size of 22 football fields) contained about 8 miles of automated conveyors, 163 presses, 11 furnaces and the largest porcelain enameling set-up in the world. Lustron parts were manufactured on an assembly line-a process developed by Henry Ford for the Model T, and used for cars and other products to this day. At the Lustron Factory, huge, specially designed truck trailers, served as the assembly line “package.” As the trailer rolled along the assembly line, parts were loaded on in the inverse order that they would be removed at the site. Once all the parts were loaded, the trailer, could be stored on the factory site until delivery, obviating the need for a storage warehouse. The very same trailer that wound its way through the Lustron assembly line would be used to deliver the house to the building site.

Lustron


 

When fully loaded, the “Home Hauling Truck” weighed in at a hefty 46,000 pounds.

 

By the end of 1949, the company operated 800 trailers and 200 tractors which were “brightly colored in blue and yellow to permit ready visibility and an appearance of neatness and cleanliness, which is evident in the house.” If it was necessary to ship a house by train rather than by truck, the trailers were loaded on a specially modified flatbed railcar. The homes were distributed through a network of Lustron builder-dealers franchised to erect houses within a given geographical area. At the end of 1949, Lustron had 234 dealers, located in 35 states. The dealers were responsible for selling and construction, including acquiring the land and preparing the site.

Laying the Foundation

The foundation was to be in place by the time that the Lustron truck arrived. The local builder/dealer was responsible for getting a building permit and pouring the foundation, with or without footings, depending on local conditions. To guide their efforts, the Lustron Corporation provided a set of Master Specifications which detailed the specifications for site preparation and the preferred mix for the concrete slab.  Lustron architectural plans provided estimates of the amount of excavation, concrete, and fill that would be required, and also detailed the necessary connections for sewage, water, fuel, and electricity. The company offered an optional “foundation package” containing anchor bolts, foundation insulation, waterproof paper and tape, piping, and other supplies; builder/dealers could also obtain these materials locally.

Some Assembly Required

 

 


Lustron Section detail showning components of Lustron home, from “The Industrialized House,” Architectural Forum, June 1947.

 

 

Once the foundation was in place, the team could get to work assembling the house. To erect the house, “socket and end wrenches, other small hand tools and a rubber mallet are substantially all the tools needed,” a writer for Farm Implement News marveled. The Lustron Corporation asserted that it took 300 to 400 man-hours for carpenters to assemble a house, plus 40 hours for a plumber, 25 hours for an electrician, and 12 to 16 hours for a laborer to lay floor tiles. This did not include other site work-installing utility lines, pouring the concrete foundation, placing sidewalks and driveways, and planting grass and other landscaping. The company estimated that the typical erection took two weeks. This pace, however, assumed an experienced team; the first time through, it often took up to 1,500 hours. Lustron operated an “Erection Training School” at the factory to teach supervisors and foremen how to speed up the process. Lustron engineers hoped, with some modification to the design and an experienced crew, to reduce erection time to 130 to 140 man-hours.

Instructions Included!

In addition to the Master Specifications, the Lustron Corporation provided several additional documents to help guide the on-site assembly process. To help contractors keep track of assembly tasks, The Lustron Corporation provided a “Daily House Erection Cost and Progress Form,” while the Erection Manual provided detailed drawings to guide the actual assembly of the house. Interestingly it appears that there was no document which identified all the parts of the Lustron. 

Sill Plates and Wall Sections

Components were unloaded from the trailer as needed, beginning with 16-gauge rolled steel sill plates. The interlocking sill plates, resting on 30-pound saturated roofing felt, were anchored to the concrete foundation at 4′ intervals. The 8′ x 8′ wall sections were then bolted to the sill plates.

A typical house had 20 wall sections featuring 11 different configurations. Connections between the wall sections(EM-02-B-20.11) at the top and bottom were made by 14-gauge channel-shaped splices. Four ½” steel bolts secured a splice at the intermediate stud spacers. The interior service wall (EM-02-B-40.1) was also installed at this time.

Lustron

 

EM-02-B-40.1 detail of interior service wall installation.

 

Roof Trusses

Next, fourteen-gauge steel truss bearing plates were bolted to the top plate of the exterior wall sections.  The roof trusses (EM-02-C-10.10), typically 10 per house, were bolted to these plates.  Each truss was shipped in two pieces, which were bolted in the center as they were erected. For more information on the roof and gutters.

Lustron

 

EM-02-C-10.10 shows that each Lustron typically had ten, fourteen-gage, steel roof trusses

 


 

 

http://www.lustronpreservation.org/meet-the-lustrons


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