Tractor Seabee
Elite Member
- Joined
- Oct 5, 2011
- Messages
- 3,896
- Tractor
- Kubota BX25
One problem there is terminology and acceptance. A few years back I did some searching for information and pricing on modular homes; the kind they build off site and bring in by semi, then assemble by crane moving whole rooms or wings at a time. The end product looks identical to a stick built home and uses all of the same standards and processes. No matter what terms I used, the bulk of what I found was the typical mobile or sectional (double wide) homes.
Authorities having Jurisdiction (AHA) are part of the problem. They still try to lump modular manufactured buildings into the trailer syndrome. There are actually three codes depending on the manufacturing process.
1. Mobile/Sectional that are built to a DOT code which also covers RVs. They are trailer frames tied together and the interiors are thin paneling on 2" walls. This is dying out and most are old stuff in place. Hard to insure, impossible to sell, nobody loans on them any more.
2. Modular homes that are built to a HUD code; the dominant market with lots everywhere. They are designed and built to be easily re-located. The code requires gypsum wallboard and current insulation values but the code is not as onerous as building codes. They are set on metal stands or concrete blocks usually. You can specify and pay extra for a concrete foundation. They are rolled in on temporary axles. When new they can be financed and insured. Not sure on the secondary market.
3. True manufactured modular units manufactured and assembled per the International Building Codes and Energy code. Always set on a permanent full foundation and considered a permanent structure. AHA's normally have no problems except extra inspections by their inspectors. Basements and up to 3 stories are common. The big $ saving on these permanent structures are real short field construction time, assembly line construction, and construction in a controlled atmosphere. $ savings probably 15-25% depending on amenities. These are premier homes. High rise office, apartment, hotel, and condo buildings are manufactured and built all over the world except the US. Due to high production rates the end cost can be brought down considerable from today's cost. Construction Unions are probably a big factor in our lagging behind the rest of the world.
Ron