19 MAC Pt. 7, R. 5.01.5
Instructions for Installation of Used Multi-Section Factory-Built
Cite as 19 Miss. Admin. Code Pt. 7, R. 5.01.5
Instructions for Installation of Used Multi-Section Factory-Built
Homes
The floor sections, roof sections, and wall sections are to be fitted together tightly.
Connections must be sufficiently sealed to prevent air infiltration. Connection of multi-section
Factory-Built homes (two or more sections), when manufacturer’s installation instructions are
not available, shall be as follows:
1.
Floor connection: All floors, ceilings and end walls of multi-section Factory-Built
homes shall be securely fastened together along the entire length of the home such that the width
of the gap at the floor, ceiling and end walls between the two halves of the home is one (1) inch
or less. Some filler material (APA rated sheathing (OSB or Plywood) not to exceed ½ inch
thickness) are allowed in areas that exceed the one (1) inch allowable gap.
2. Siding and trim pieces are not to be installed at the connection of the end sections until the
installer/transporter has provided to the State Fire Marshal’s office photographs of a.) the
marriage line gap at each end of the mobile home showing end of the home with the serial
number visible in the photograph and b.) a photograph of a ruler positioned at the widest portion
of the end wall marriage line gap. Some filler material (APA rated sheathing (OSB or Plywood)
not to exceed ½ inch thickness) are allowed in areas that exceed the one (1) inch allowable gap.
3. Roof and Ridge Beams: All roof and ridge beams of multi-section Factory-Built homes
shall be securely fastened together along the entire length of the home
4.
End walls: End walls of multi-section Factory-Built homes shall be securely fastened
together, with the proper weather seal gasket installed, such that the width of the gap between
the two halves of the home is one (1) inch or less pursuant to Manufactured Home Installation
Standards 24 CFR 3285.801 (3) and 3285.802 (c). Some filler material (APA rated sheathing
(OSB or Plywood) not to exceed ½ inch thickness) are allowed in areas that exceed the one (1)
inch allowable gap.
5.Any bottom board material that is damaged during transport of the home or during the
installation of the lag bolts along the marriage line of the home is required to be properly
repaired according to MH-5 instructions for proper repair of the bottom board.
6.The joints at the ridge of the roof shall be secured and weather tight.
7. .Plumbing must be performed by a licensed installer transporter trained to connect the plumbing
to the factory-built homes.
8.Care should be taken with crossover electrical wires to avoid sandwiching between studs when
the sections are pulled together.
9. All electrical work (crossover wires, grounding requirements) must be performed by a
licensed installer transporter trained to properly connect the cross-over electrical
connections.
10. Crossover, heating and other duct connections shall only be performed by a licensed installer
transporter trained to perform this type of work.