Without actually examining the tile and floor underlayment, we can’t tell you for sure what is causing the problem, but the floor sheathing in a mobile home is not designed to accept ceramic floor tile over it unless it was originally installed at the factory. Tile requires a stiff underlayment that does not flex at all when walked on—or when a refrigerator or range is rolled over it.
When a homeowner decides to lay ceramic tile over a floor that was originally covered with carpet or vinyl tile, it’s necessary to lay down an additional layer of plywood or a cement tile backer board to provide sufficient resistance to flexing of the underlayment that causes cracking.
If ceramic tile has been installed on a manufactured home floor as part of a remodeling, the floor should be noticeably higher that surrounding carpet due to the additional thickness of added underlayment. While the impact of a heavy object dropped on a tile floor can cause a crack or two, multiple cracks in a tile floor are likely due to lack of an adequately stiff underlayment.
Also, see our blog post What causes a crowned floor in a mobile/manufactured home?
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Here’s links to a collection of our blog posts about MOBILE/MANUFACTURED HOMES:
• Where can I file a complaint if I have problems with my new or used manufactured/mobile home in Florida?
• What are the most common defects in mobile/manufactured home foundation piers?
• How do I determine the age of a very old mobile home?
• What is a "HUD label verification letter" for a mobile/manufactured home?
• When did a ground cover vapor barrier (plastic sheet) become required under a mobile/manufactured home?
• Is it safe to go under a mobile home?
• Are older mobile homes unsafe?
• What do I need to know about buying a foreclosed mobile home?
• Does it make sense to buy an older mobile home and remodel it?
• Where do I find the vehicle identification number (VIN) on a mobile home?
• How do I find out how old a mobile home is and who manufactured it?
• What is the right price for a used mobile home?
• How energy efficient is a mobile home?
• When were the first double-wide mobile homes manufactured?
• How do I upgrade my old (pre-1976) mobile home to meet HUD standards?
• What size air conditioner is right for my mobile home?
• Can you move an older mobile home in Florida?
• What does the HUD tag look like and where do I find it on a mobile home?
• Can you put a zone 1 mobile home in Florida?
• How can I remove water under my mobile home?
• What's the differences between a trailer, a mobile home, a manufactured home, and a modular home?
• What is a D-sticker mobile home?
• What are the tie-down requirements for a mobile home?
• How fireproof is a mobile home?
• Can I install a mobile home myself?
• What is a Park Model mobile home?
• Does an addition to a mobile home have to comply with the HUD Code?
• What walls can I remove in a mobile home?
• What can I do to prevent dampness and mold in my mobile home?
• How can I tell if a mobile home is well constructed?
• How can I tell the difference between a manufactured home and a modular home?
Visit our MOBILE/MANUFACTURED HOMES page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.