225: Model Manufactured Home Installation Standard

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2013 NFPA 225
Prior Years NFPA 225, Prior Years

Consult the 2013 NFPA 225 for comprehensive, up-to-date installation criteria for manufactured homes.

The 2013 NFPA 225: Model Manufactured Home Installation Standard presents the latest guidelines for safe, efficient, and effective installation of manufactured homes.

Provisions cover:

  • Preparation of sites intended for manufactured homes
  • Foundations on which the manufactured homes are installed
  • Procedures for on-site installation and erection
  • Management of appliances and utility connections
  • Anchoring of the home and protection against seismic events, floods, and wind

Keep pace with changes in the 2013 edition, including:

  • New retroactivity provisions specify that requirements are retroactive only where specified or in those cases where the AHJ determines that the existing situation presents an imminent danger.
  • New definition added for imminent danger.
  • New section on water mist sprinkler systems requires such systems to have a water supply system that complies with NFPA 13D: Standard for the Installation of Sprinkler Systems in One and Two-Family Dwellings and Manufactured Homes or the additional requirements of NFPA 750: Standard on Water Mist Fire Protect Systems.

From site preparation through final inspection, the 2013 NFPA 225 gives engineers, manufacturers, and AHJs the guidance they need to help ensure the safety and health of manufactured home users. (Softbound, 64 pp., 2013)

NFPA® 225 Model Manufactured Home Installation Standard 2013 Edition

Chapter 1 Administration
1.1 Scope
1.2 Purpose. (Reserved)
1.3 Application
1.4 Retroactivity
1.5 Term Use
1.6 Equivalency
Chapter 2 Referenced Publications
2.1 General
2.2 NFPA Publications
2.3 Other Publications
2.4 References for Extracts in Mandatory Sections
Chapter 3 Definitions
3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions
Chapter 4 General
4.1 Preinstallation Considerations
4.2 Alterations
4.3 Data Plate
4.4 Installation Considerations
4.5 Design and Construction
Chapter 5 Site Preparation
5.1 Access for Transporter
5.2 Encroachments and Setback Distances
5.3 Fire Separation Distance
5.4 Issuance of Permits
5.5 Site Preparation
5.6 Investigation and Bearing Capacity of Soil
5.7 Drainage
5.8 Ground Moisture Control
Chapter 6 Foundations
6.1 General
6.2 Piers
6.3 Footings
6.4 Permanent Foundations
6.5 Special Considerations
Chapter 7 Installation Procedures
7.1 Before Moving Manufactured Home to Location
7.2 Positioning of Home
7.3 Interconnection of Multisection Homes
7.4 Crossover Connections for Multisection Manufactured Homes
7.5 Anchoring Instructions
7.6 Installation of On-Site Structures
7.7 Installation Close-Up/Finishing
Chapter 8 Site-Installed Features
8.1 Installation of Site-Installed Features
8.2 Hinged Roofs and Eaves
8.3 Garden and Bay Windows
8.4 Awnings and Ramadas
8.5 Miscellaneous Lights and Fixtures
8.6 Ventilation Options
8.7 Optional Panels, Siding, and Molding
8.8 Skirting
8.9 Telephone and Cable TV
8.10 Joints and Seams
Chapter 9 Preparation of Appliances
9.1 Clothes Dryer Vent
9.2 Comfort Cooling Systems
9.3 Fireplace and Wood-Stove Chimneys and Air Inlets
9.4 Range, Cooktop, and Oven Venting
9.5 Flood Hazard Areas
9.6 Seismic Design Categories D0, D1, D2, and E
Chapter 10 Utility System Connection and Testing
10.1 Proper Procedures
10.2 Water Supply
10.3 Drainage System
10.4 Gas Supply
10.5 Heating Oil Systems
10.6 Electricity
Chapter 11 Life Safety Features
11.1 Smoke Alarms
11.2 Carbon Monoxide Detectors
11.3 Fire Separation Distances
Chapter 12 Installation in Flood Hazard Areas
12.1 General
12.2 Lowest Floor Elevation
12.3 Foundations and Anchoring
12.4 Installation Procedures
12.5 Post-Installation Considerations
12.6 Preparation of Appliances
12.7 Utility Systems
Chapter 13 Seismic Provisions for Prescriptive Design of Support Systems
13.1 Scope
13.2 Minimum Prescriptive Support System Requirements
13.3 Prescriptive Pier Support Systems
13.4 Prescriptive Foundation Wall Support Systems
13.5 Prescriptive Wood Cripple Wall Support Systems
Chapter 14 Seismic Installation and Equipment Bracing Requirements
14.1 General
14.2 Site-Installed Water Heaters
14.3 Site-Installed Equipment
14.4 Utility Attachments
Chapter 15 Prescriptive Flood Provision Designs
15.1 Scope
15.2 Anchorage and Support Materials
15.3 General Limitations
15.4 Prescriptive Ground Anchor Support and Anchorage System
15.5 Prescriptive Foundation Wall Support and Anchorage Systems
Annex A Explanatory Material
Annex B Final Inspection Checklist
Annex C Sample Checklist for AHJ Officials
Annex D Sample Schedule for Manufactured Home Installation Permits
Annex E Informational References