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Tilt-up Roofs for Manufactured and Modular Homes

New option can increase utility and value of modular homes.

Drawing of a finished house using tilt-up roofing.

Manufactured and modular homes typically have roofs with low pitches due to the need to clear underpasses during transport. Devices are available that allow a high-pitched roof to fold flat during transport to provide the necessary clearance, while still achieving some of the savings associated with a factory-built roof. In modular homes, the high-pitched roof allows for second-floor or attic spaces, increasing the utility and value of the home. In manufactured (HUD code) homes, these roofs also can be more appropriate for infill sites in urban areas where its appearance helps it fit among the older homes in the neighborhood.

Tilt-up gable roofs are widely used. The New Era home consists of two sections, either 14' or 16' wide (nominal) and various lengths with a partial or full second floor. With the addition of a site-installed (or double hinged) upper roof section and gable ends, a second floor space is created for future finishing. Although the design is standardized, it can be offered in a number of site-specific plans and elevations. In many cases the buyer will order through an options/configuration checklist categorized by trade. The home can also be used in zero lot line configurations.


Affordability

Manufactured and modular homes featuring tilt-up roofs can be an economical alternative to site-built construction.

Quality and Durability

Tilt up roofs can add architectural interest to modular and manufactured homes.


Easy

For a typical 1000 sf house, a distributor for New Era claims four to five weeks from order to delivery, with an additional two weeks on-site preparation.


Modular homes, built to the same local code as site built homes, will usually cost less than the field framed version. Manufactured homes built to the HUD code, will also cost less.


Equal. Factory built homes can be built to high energy standards.


The use of tilt-up roofs allow manufactured housing where zoning resolutions require roofs of a certain minimum pitch. New Era claims that their tilt-up designs are built to fit every code in the country and often exceed them due to the economy of scale and keeping features consistent.


Not Applicable


Once the checklist is sent to New Era and assembly begins, the foundation and utilities connections are prepared. The house is delivered via crane from the flatbed, and the floor-carrying beams are bolted together. All or part of the main roof is hinged up on site to a pitch between 9:12 and 12:12.


Not Applicable


New Era's turn-key costs range from $58 to $98 per sf, averaging $70 with customized options. Considering the added cost of the land, it is possible to find site-built homes in that range but the degree of owner-customization, quality, speed, and convenience of these should exceed that of conventionally built homes. For a double section home, 28' wide by 40' long, the extra cost for an unfinished second floor space is approximately $3500. This includes stairs and floor decking.

Disclaimer: The information on the system, product or material presented herein is provided for informational purposes only. The technical descriptions, details, requirements, and limitations expressed do not constitute an endorsement, approval, or acceptance of the subject matter by the NAHB Research Center. There are no warranties, either expressed or implied, regarding the accuracy or completeness of this information. Full reproduction, without modification, is permissible.