Mobile Home Inspection in Florida: What Buyers and Owners of Manufactured Homes Should Know

Mobile home, manufactured home or modular: what are you buying?

People use "mobile home" for any factory-built house that arrived on wheels, but the label on the home matters more than the word on the listing. The federal government regulates homes built on a permanent steel chassis under the Manufactured Home Construction and Safety Standards, known as the HUD code, which took effect on June 15, 1976. Homes built after that date are manufactured homes. Homes built before it are usually still called mobile homes, and they were not built to any federal code. Florida statutes often say "mobile home" for both, so expect to see the terms mixed in insurance and title paperwork.

A modular home is something else. It is also built in a factory, but to the Florida Building Code, and it carries a state insignia instead of a HUD label. Once set on its foundation, building departments permit and inspect it much like a site-built house. Knowing which one you have decides which rules apply to the roof, the wind rating, the installation and even the mortgage: HUD's FHA guidelines treat manufactured homes built before June 15, 1976 as ineligible for FHA-insured financing.

Size and layout vary too. A single-wide is one transportable section; a double-wide is two sections joined along a "marriage line" that runs the length of the home, and some homes have three. Each section is a separate unit for labeling purposes, which is why a double-wide carries two HUD labels and two label numbers.

The HUD label and data plate: where to find them

Every transportable section of a HUD-code home carries a certification label, the "HUD tag". Under 24 CFR 3280.11, it is a plate about 2 by 4 inches, etched on aluminum and fastened with rivets or screws so it cannot be removed without damage. It goes at the taillight end of each section, roughly a foot up from the floor and a foot in from the road side. If that spot would be hidden once the home is installed, the manufacturer places it somewhere else on the outside that stays visible. The label states that the manufacturer certifies the home was built to the federal standards in effect on its date of manufacture.

The data plate is the home's birth certificate. It is a paper placard inside the home, which 24 CFR 3280.5 places near the main electrical panel or in another readily accessible spot; in practice, look inside a kitchen cabinet door, near the panel or in a bedroom closet. It lists:

• The manufacturer's name and the address of the plant where the home was built.
• The serial number, model and date of manufacture.
• The certification label number of each section.
• The major factory-installed appliances, with their makers and model numbers.
• The wind zone and roof load zone the home was designed for, with small copies of the zone maps.
• Whether the home is designed to support loads from an attached accessory structure, such as a carport or a screen room.
• Whether the home came with storm shutters, and for homes designed for Wind Zones II and III, a recommendation about protecting openings if it did not.

Florida adds its own sticker. Under Section 320.8249 of the Florida Statutes, the installer must affix an installation decal before installing the home, positioned immediately next to the HUD label, showing the installation date, the installer's name and a license number. When we inspect, we photograph the labels, the data plate and the decal whenever they are present, because lenders, insurers and appraisers ask for those numbers. If labels are missing, HUD does not reissue them, but it can issue a letter of label verification when its records allow; for a missing data plate, the manufacturer or its inspection agency is the place to start.

Florida wind zones for manufactured homes

The HUD code divides the country into three wind zones, and every manufactured home is designed for one of them. Under 24 CFR 3280.305, Wind Zone II homes are designed for a 100 mph wind and Wind Zone III homes for 110 mph. In Florida, there is no Zone I. Fourteen counties are in Zone III, including all three South Florida counties: Broward, Charlotte, Collier, Dade, Franklin, Gulf, Hendry, Lee, Martin, Manatee, Monroe, Palm Beach, Pinellas and Sarasota. Every other Florida county is in Zone II.

Those wind speeds come from an older method of measuring wind and should not be compared with the much higher design speeds quoted for site-built homes under the Florida Building Code. What matters is the rule in 24 CFR 3285.103: a manufactured home must not be installed in a wind zone that exceeds the design wind loads it was built for, as shown on its data plate. In Broward, Miami-Dade and Palm Beach, that means the data plate should show Wind Zone III. A Zone II home sitting in a South Florida park is a finding worth asking about before you buy, and a question for the seller, the park and your insurer.

Why July 13, 1994 matters

The wind provisions you see today are the result of Hurricane Andrew. After the 1992 storm, HUD rewrote the wind standards for Zones II and III, with the new rule generally taking effect on July 13, 1994. Florida law still points to that date: Section 627.0629(3) refers to the ASCE 7-88 wind standard adopted by HUD on July 13, 1994 when it describes which mobile homes earn windstorm discounts. Homes built between 1976 and mid-1994 met the HUD code of their day, but they were not designed to the wind loads that came after Andrew, and the date of manufacture on the data plate tells you which side of that line a home falls on.

Mobile home tie-downs and installation: who regulates them in Florida

A manufactured home is only as strong as the way it is anchored. Section 320.8325 of the Florida Statutes directs the Department of Highway Safety and Motor Vehicles (FLHSMV) to adopt uniform installation standards that keep the home on a permanent foundation able to resist wind, flood, flotation, overturning, sliding and lateral movement. It also states that the owner of the home is responsible for having it installed according to those rules. The standards themselves are in Chapter 15C-1 of the Florida Administrative Code, which includes rules on installation, foundations and piers, anchors and tie-downs, and the testing of straps, piers and anchors.

What the installation rules require

Under Rule 15C-1.0102, installations must be done by a licensed installer, a licensed dealer installer or a manufacturer installer, following the manufacturer's installation instructions unless the rule says otherwise; a used home without instructions must meet the rule itself. A few of its requirements show what a sound installation looks like:

• Anchors and anchoring components must be tested, listed and approved by FLHSMV, and installed the way they were tested.
• Auger anchors must be hot-dip galvanized.
• Stabilizer devices must have at least 180 square inches of surface area, be galvanized or zinc-coated and sit flush with the soil.
• The site must be cleared of vegetation and organic material and graded for drainage, with piers set on stable soil or compacted fill.
• Homes manufactured after July 13, 1994 follow the manufacturer's set-up manual for anchor loads; used homes from that era without a manual need anchor points rated for a 4,000-pound working load and a 6,000-pound ultimate load.
• Coral anchors are not designed to meet Zone II and Zone III wind requirements.

Licensed installers and local inspections

Anyone who installs a mobile home in Florida needs a mobile home installer's license from FLHSMV, which requires an approved training course of at least 8 hours and an exam, and is renewed every year. Section 320.8285 makes each county or city responsible for the on-site inspection of every installation in its jurisdiction, and the permit can only be issued to a licensed installer, or to a dealer or owner whose application shows a licensed installer will do the work. When the installation complies, a certificate of occupancy follows.

What a home inspector does with tie-downs, and what we do not

During an inspection, we look at what is visible from the skirting access and around the home: straps that are rusted, frayed, slack or disconnected, anchor heads that have pulled up or tilted, missing stabilizer plates, and frame ties that no longer reach the frame. We photograph and report those conditions. We do not certify tie-downs or installations, tension straps, test anchors or confirm that an installation meets Chapter 15C-1. Adjusting, adding or replacing tie-downs is work for a licensed mobile home installer, and if your insurer asks for a tie-down certification, ask it which professionals it accepts.

Insuring a mobile home in Florida: the 4-point, roof age and surcharges

Florida's insurance code ties windstorm coverage on a manufactured home to how it was installed. Under Section 320.8325(2), insurers may issue windstorm coverage on a mobile home only if it was installed according to the statute and FLHSMV rules. The same subsection protects the owner after a storm: if an insured home shows windstorm damage suggesting it was not installed properly, the insurer is not relieved of its obligations under the policy on that basis alone.

The mobile home 4-point inspection

Citizens Property Insurance states that it requires a four-point inspection for all property owner, dwelling and mobile home applications on properties more than 20 years old. That line now reaches manufactured homes built in the mid-2000s. The form is the same one used on a house: the roof, the electrical system, the plumbing and water heater, and the heating and cooling, each with photos, completed and signed by a Florida-licensed inspector. Private carriers set their own age limits and documentation rules, so ask your agent which report the company wants before you book. Our explainer on how the 4-point form works goes section by section, and our 4-point inspection page covers scheduling and turnaround.

Citizens rules that weigh on manufactured homes

Three Citizens rules matter more for manufactured homes than for most houses:

• Roof age. Citizens asks for documentation of a full roof replacement on mobile homes whose roofs are more than 25 years old, although documentation showing at least five years of remaining useful life can be submitted for underwriters to consider.
• Polybutylene. Citizens does not insure new business risks over 20 years old with polybutylene piping on its forms, and its list includes the Mobile Homeowners 3 (MHO-3) and Mobilehome Dwelling Property 1 (MDP-1) forms.
• Older homes. Citizens applies a 10 percent surcharge to mobile homes 36 to 50 years old, inclusive, that do not have updated electrical wiring and heating. Acceptable documentation of those updates from a verifiable qualified inspector, sent with the application or before renewal, can remove it.

For an older home, the paperwork matters as much as the condition: invoices, permits and dates for rewiring, a new heat source, a re-pipe or a new roof let the 4-point record the update instead of guessing at it. If a system has a problem, our guide to what insurers refuse on a 4-point explains which conditions usually have to be fixed first.

Here is who usually asks for each document on a manufactured home, and where it comes from:

Does the wind mitigation form apply to manufactured homes?

This is one of the most common questions from manufactured home owners, and the honest answer is that the uniform form is not built for them. The Uniform Mitigation Verification Inspection Form, OIR-B1-1802, does not mention manufactured or mobile homes. Its questions are written around site-built construction: the edition of the Florida Building Code in force when the permit was applied for, how the roof deck is nailed to the trusses, how the roof is connected to the walls and the shape of the roof. A HUD-code home is built to the federal standard instead, so several of those questions have no meaningful answer.

Florida law handles mobile home windstorm credits separately:

• Section 627.0629(3) says a rate filing for mobile home owner insurance must include appropriate discounts, credits or other rate differentials for mobile homes built to comply with ANSI/ASCE 7-88, as adopted by HUD on July 13, 1994, and that also comply with all applicable tie-down requirements of state law.
• Section 627.0629(7) allows an insurer to give discounts of up to 10 percent of the annual premium to mobile home owners who provide evidence of a current inspection of their tie-downs, certifying that the tie-downs were properly installed and are in good condition.
• Section 215.559 funds a mobile home tie-down program, administered by Gulf Coast State College, to inspect and improve tie-downs, with a goal of improving entire manufactured home communities and parks wherever practical. On evidence that the program was completed, Citizens must grant actuarially reasonable discounts or deductible reductions to the owners of qualifying homes.

In practice: before you pay for a wind mitigation inspection on a manufactured home, ask your agent what your insurer actually uses for windstorm credits on a mobile home policy. Florida's statute points to the 1994 HUD wind standard and to tie-down documentation, not to the nine questions on the uniform form. A modular home built to the Florida Building Code is a different case, and your agent can tell you whether the standard form applies.

Mobile home roof inspection: metal roofs, roof-overs and seams

Roofs are where manufactured homes and their owners spend the most money, and they are a frequent reason insurers ask questions. Older single-wides often have a low-slope metal roof of formed steel or aluminum sheets over curved or flat rafters. Many have since been covered with a roof-over: a new roof system installed on top of the original, often ribbed metal panels on wood strips, or insulation board under a membrane or a coating. Newer homes, especially double-wides, often have pitched roofs with shingles, and some have been reroofed with metal.

A mobile home roof inspection focuses on the places where water gets in:

• Fasteners: screws that have backed out, rubber washers that dried and cracked, and rust stains spreading from screw heads.
• The marriage line on a double-wide, where the two roof halves meet under a ridge cap that has to stay sealed.
• Edges and gutters: lifted drip edges, gutter rails pulling away and fascia that has rotted behind them.
• Penetrations: plumbing vents, exhaust fans, roof-mounted A/C units and their curbs, and the flashing or sealant around each one.
• Ponding: low spots on a flat or low-slope roof where water sits after rain, often over a sagging rafter.
• Coatings: peeling, cracking or chalking elastomeric coatings, which hide what is underneath and need renewal to keep working.
• Inside: stains along ceiling panels and battens, soft ceilings near the walls and water marks around light fixtures.

Old metal roofs are not always designed for foot traffic, so we choose between a ladder, a careful walk and a drone depending on the roof. A roof-over raises its own questions: who installed it, when, with what permit, how it is attached to the home and whether the original roof under it was dry. Keep the contract and permit, because they are the documentation an insurer needs when it asks about roof age. If your carrier wants a separate roof document, our guide to roof condition reports in Florida explains what one includes, and a standalone roof inspection can be booked on its own.

Under the home: belly board, piers, plumbing and ducts

The underside is the part of a manufactured home most buyers never see, and it is where several expensive problems start. Access is usually through a removable panel in the skirting. We go under the home when there is enough clearance and it is safe: no standing water, no exposed live wiring and no animals that would make it dangerous. When we cannot get under, the report says so and explains why, because a limited view should never read like a clean one.

Belly board and insulation

Under the floor, a bottom board, often called the belly board or belly wrap, holds the floor insulation in place and keeps out moisture and pests. Tears, sagging sections, wet or fallen insulation and openings around pipes are common findings, and they matter: a torn belly lets humid air and animals into the floor, and wet insulation sags until it pulls more of the board down.

Piers, shims and the ground

The home's weight rests on piers, usually concrete blocks with caps and wood shims, or adjustable steel piers. We look for piers that lean, blocks that cracked, shims that slipped or rotted, gaps between a pier and the frame and piers resting on soft or washed-out soil. On a double-wide, the piers along the marriage line carry a lot of load. We also note standing water, poor drainage, debris and vegetation under the home, all of which keep the space damp.

Plumbing and ducts under the floor

Most supply and drain lines run beneath the floor. We trace what we can reach: the material of the supply lines (gray polybutylene is common in homes of the 1980s and early 1990s), active drips, missing supports, joints wrapped with tape as a repair and the drain connection to the sewer or septic line. Ducts often run under the floor too. On a double-wide, a flexible crossover duct joins the two halves; when it is crushed, torn or disconnected, the A/C cools the crawlspace instead of the rooms and the cold duct sweats onto the belly board. A dryer vent that ends under the home instead of outside the skirting is another common finding, because it puts lint and moisture exactly where they do the most harm.

Electrical, plumbing, water heater and A/C in manufactured homes

The four systems an insurer asks about look a little different in a manufactured home. Here is what we check, system by system.

What a buyer's mobile home inspection covers

A 4-point tells an insurer about four systems. A buyer needs the whole home. A full inspection of a manufactured home follows the same top-to-bottom logic as a home inspection on a house, adapted to how these homes are built:

• Identity: HUD labels, data plate and installation decal, photographed and compared with each other.
• Roof, gutters, fascia and any roof-over.
• Exterior walls: metal or vinyl siding, loose panels, gaps at corners and trim, and rot at the bottom edge.
• Windows and doors, including older awning and jalousie windows, and whether each bedroom has a window you can get out of.
• Floors: soft spots, slopes and squeaks that point to subfloor damage or settled piers.
• Walls and ceilings: stains along panel seams, cracks above doors and gaps at the marriage line.
• Electrical, plumbing, water heater and A/C, as described above.
• The underside: belly board, piers, visible tie-downs, plumbing, ducts and drainage.
• Additions: carports, screen rooms, Florida rooms, decks, steps and ramps, and how they attach to the home.
• Smoke alarms and other basic safety items.

Additions deserve special attention. The data plate states whether the home was designed to support loads from an attached accessory structure, and many carports, awnings and Florida rooms were added later, sometimes without permits, and fastened to a wall or roof that was never meant to carry them. Attached aluminum structures are also often the first thing to fail in a storm, and they can tear the home's roof or wall when they go.

Termites are a separate question. A wood-destroying organism inspection is done by a licensed pest control company under its own state form; our guide to WDO and termite inspections explains how it works, and you can ask us whether one can be arranged alongside your visit. As for cost, a manufactured home inspection is priced on the home's size, its age, the access underneath and any reports you add; our article on what drives inspection pricing explains the factors, and you get a firm price before anything is scheduled.

Buying a mobile home in Florida: in a park or on your own land

Where the home sits changes what you are buying. In a park, you usually own the home and rent the lot under it. Florida's Mobile Home Act, Chapter 723 of the Florida Statutes, applies to tenancies in parks where 10 or more lots are offered for rent or lease. In parks with 26 or more lots, the park owner must deliver a prospectus approved by the state to the new resident before the lot rental agreement is signed. Read it closely: it explains lot rent and how it can rise, the services included, the park rules and who maintains what.

The park also affects the inspection. Ask the manager about access for the inspector, gate codes and whether the park requires approval of new residents. Ask, too, whether the park has had its tie-downs inspected or improved through the state program, and keep any records the seller has for the home itself.

On your own land, you buy the home and the lot together, and the home's legal status matters. Under Section 320.0815, a mobile home that is qualified and taxed as real property gets an "RP" sticker from the tax collector; otherwise, a permanently affixed home gets a mobile home sticker. Title, taxes and liens are questions for your closing agent or attorney, not the inspector, but the answers affect your financing and insurance, so settle them early. Rural lots also bring septic systems and private wells: a septic contractor evaluates the system, and you can ask us whether well water testing can be added.

Wherever the home sits, check the flood zone on FEMA's flood maps, and remember that flood coverage is a separate policy. After a storm, manufactured homes need the same careful look as any house, plus the tie-downs, skirting and underside; our guide to checking a home after a hurricane covers the order and the claim deadlines.

How to prepare for a mobile home inspection

A little preparation turns several "unknowns" into documented answers, which matters most for an insurance report.

• Find the data plate and make sure the cabinet or closet where it hangs is open.
• Locate the HUD labels outside and clear plants or stored items away from them.
• Make the skirting access panel easy to remove, and tell us if you know of standing water or animals under the home.
• Gather invoices and permits for the roof or roof-over, rewiring, the panel, a re-pipe, the water heater and the A/C, with dates.
• Bring any tie-down inspection paperwork and the installer's records, if you have them.
• Keep the power, water and A/C on, and unlock the water heater closet, sheds and the screen room.
• If the home is in a park, arrange gate access and let the manager know an inspection is scheduled.
• Secure pets, especially if they spend time near the skirting access.

Mobile home inspections across South Florida

All three South Florida counties sit in HUD Wind Zone III, so the wind zone on the data plate is one of the first things we check on every manufactured home here. Additions are the other local issue. Carports, screen rooms and other site-built additions are permitted by the local building department under the Florida Building Code, and in Miami-Dade and Broward, which are in the code's High-Velocity Hurricane Zone, those additions face stricter requirements than in Palm Beach County. We explain how Palm Beach County differs outside the HVHZ in a separate guide. Salt air near the coast speeds up rust on straps, anchor heads and metal roofs, and the low, flat ground in much of the region keeps the soil under many homes damp. We inspect manufactured homes in parks and on private lots across Broward, Miami-Dade and Palm Beach, and each city page explains what is typical locally.

Common myths about mobile home inspections

• "A mobile home is simple, so it does not need an inspection." It has the same four systems as a house, plus an underside, piers and tie-downs that most buyers never see.
• "The park takes care of the tie-downs." Florida law makes the home's owner responsible for an installation that meets FLHSMV rules. Ask the seller for records, and check the visible straps yourself.
• "A wind mitigation report will lower my mobile home premium." The uniform form was written for site-built homes. Mobile home windstorm credits in Florida law are tied to the 1994 HUD wind standard and to tie-downs, so ask your agent first.
• "A roof-over makes the roof new for insurance." Your insurer decides how it counts the roof's age. Keep the contract and permit so the work can be documented.
• "If it looks fine, a pre-1976 home is the same as a newer one." Homes built before the HUD code met no federal standard, cannot get FHA-insured financing and can be harder to insure.
• "The home inspector certifies the installation." An inspector documents visible condition. Installation and tie-down work belongs to licensed installers, and local building departments inspect installations.

The bottom line

A manufactured home deserves the same careful look as any house, plus attention to what makes it different: the HUD label and data plate, the Zone III wind rating South Florida requires, the piers and tie-downs, the underside and the roof or roof-over. If you are insuring an older home, expect a 4-point and gather the dates of every update before the visit. If you are buying, inspect the whole home, read the park's documents and ask your agent how the insurer will treat its age, roof and tie-downs. To schedule a mobile home 4-point or a buyer's inspection in Broward, Miami-Dade or Palm Beach, call or text (954) 297-0317 or send us a request. Reports usually arrive within 24 hours, insurance reports often the same day, and you get a firm price before anything is scheduled.

About the author

Peter Lemos, Certified Master Inspector®

Owner and lead inspector of Global Home Inspectors in Hollywood, FL. Peter holds InterNACHI certifications in wind mitigation, 4-point and mold inspection and has served Broward, Miami-Dade and Palm Beach counties since 2008.