'Shipped by railroad boxcar, and then usually trucked to a home site, the average Sears Modern Home kit had about 25 tons of materials, with more than 30,000 parts. Plumbing, electrical fixtures, and heating systems were options that could be ordered at additional cost; they were many families' first steps to modern HVAC systems, kitchens, and bathrooms. During the Modern Homes program, large quantities of asphalt shingles became available. Asphalt shingles were cheap to manufacture and ship, and easy and inexpensive to install. Sears also offered a plasterboard product similar to modern drywall as an alternative to the plaster and lath wall-building techniques which required skilled carpenters and plasterers. This product offered the advantages of low price, ease of installation, and added fire protection. Local building requirements sometimes dictated that certain elements of the house construction be done professionally and varied depending on where the house was constructed.'
Apparently with the Sears home